Motor Control Centers - Fuelled · 2017. 12. 11. · NEMA Class of Diagrams and Wiring ... E9000 MCC can be spliced onto existing 7700 Line, 8000 Line and Spectra MCC for 1200A (supplied

Evolution Series E9000™Motor Control Centers

Application Guide

GEIndustrial Solutions

Evolution Series E9000* Motor Control CentersGeneral

Section A: GeneralProduct Design & Features ............................................................................................1Bus Features ........................................................................................................................2Unit Features ....................................................................................................................3-5IP20 and Incidental Contact Barrier Features ......................................................6Wire, Cable, and Nameplates ......................................................................................6NEMA Class of Diagrams and Wiring ........................................................................7Codes and Standards........................................................................................................8Short Circuit Considerations..........................................................................................9Fuse Classification ..........................................................................................................10Environmental Considerations ..................................................................................10

Section B: StructureEnclosure Types ..................................................................................................................1Indoor Enclosures........................................................................................................2-13Outdoor Enclosures ........................................................................................................14Enclosure Options ....................................................................................................15-16Bus Selection ......................................................................................................................17

Section C: Mains, Feeders, Incoming LinesMains- General ....................................................................................................................1Fused Switch Mains ..........................................................................................................1Circuit Breaker Mains ........................................................................................................2Arc Flash Mitigation (AFM) Main and Feeder Units..............................................3Feeders-General..................................................................................................................4Fused Switch Feeders ......................................................................................................4AFM Fused Switch Feeders ............................................................................................4Circuit Breaker Feeders....................................................................................................5AFM Circuit Breaker Feeders ........................................................................................5Accessories for Mains & Feeders ................................................................................5Options for Mains & Feeders ........................................................................................6Incoming Line Terminations ..........................................................................................7Automatic Transfer Switches ........................................................................................8Transitions..............................................................................................................................8

Section D: StartersGeneral ....................................................................................................................................1Arc Flash Mitigation (AFM) Starter Units ..................................................................2Circuit Breaker Type Selection Tables ..................................................................3-6Fused Switch Type Selection Tables ..................................................................7-10Starter Options ..........................................................................................................11-12Product Information ................................................................................................13-15

Section E: Miscellaneous UnitsOperator and Metering Panels ....................................................................................1Mounting Plates ..............................................................................................................2-3Lighting and Distribution Panels..................................................................................4Distribution Transformers ..........................................................................................5-6Power Factor Correction Capacitors ....................................................................7-8

Section F: Intelligent MCCGeneral ....................................................................................................................................1Intelligent MCC Configurations ....................................................................................2Programmable Logic Controllers............................................................................3-7Programmable Automation Controllers ..........................................................8-11Example PLC Connections ..........................................................................................12Distributed I/O & Remote I/O ..............................................................................13-16Human Machine Interface (HMI)........................................................................17-18envisage- Energy Management System ..............................................................19

Section G: Solid-State Drives & StartersAdjustable Frequency AC Drives ................................................................................1Adjustable Speed Drives - General ............................................................................2Adjustable Speed Drives - Specifications............................................................3-5Adjustable Speed Drives - Space Height & Assembly ..................................6-7Six Pulse VFD Generic Block Diagram ......................................................................7Adjustable Speed Drives - Configurations ..............................................................8Adjustable Speed Drives - Harmonic Filters ..........................................................9Adjustable Speed Drives - Motor Application Data..........................................10How to Select Drives................................................................................................10-11Solid-State Starters - ASTAT XT ..........................................................................12-16Solid-State Starters - ASTAT BP ..........................................................................17-19Solid-State Starters - Selection Tables............................................................20-27Solid-State Starters - Nonreversing with Primary Disconnect ..................28Arc Flash Mitigation (AFM) Solid State Drives & Starters................................29

Section H: ComponentsSpectra RMS* Mag-Break* Motor Circuit Protectors ....................................1-2Spectra RMS Molded Case Switches..........................................................................3Heavy Duty Fusible Disconnects ................................................................................4New Generation High Pressure Contact (HPC) Switches ................................5Power Break II Insulated Case Circuit Breakers ..................................................6Spectra RMS Circuit Breakers ..................................................................................7-8Ground Fault Current Detection Systems - Model BGFL..................................9Ground Fault Current Detection Systems - Model GFM ................................10C2000 Line Motor Starters ..........................................................................................11300-Line Motor Starters ........................................................................................12-13Overload Relays................................................................................................................14Industrial Relays ..............................................................................................................15Accessories for C2000 Contactor and Control Relay......................................15CR104P Pilot Devices......................................................................................................16C2000 Pilot Devices ........................................................................................................17Solid-State Motor Winding Heater ..........................................................................18EPM 6000 Power Meter ................................................................................................19EPM 6010 Automation Power Meter ......................................................................20EPM 7000 Power Meter ................................................................................................21PQM II Power Quality Meter ........................................................................................22Three-Phase Voltage Monitors - Model SPVRB..................................................23High-Resistance Ground ..............................................................................................24MM200 Motor Management System ..............................................................25-27MM300 Motor Management System ..............................................................28-30Integrated Tranquell* HE & ME - Surge Protective Device (SPD) ............31-32

Section J: Application DataApproximate Motor Full-Load Current Ratings ....................................................1Mag-Break Magnetic Circuit Breaker Trip Set Positions ..................................2Thermal-Magnetic Trip Ratings for Motor Circuits..............................................3Overload Heater Tables for Ther-Mag Controllers..............................................4Overload Heater Tables for Mag-Break Controllers ......................................5-9Overload Heater Tables for Overload Relays ....................................................10Overload Heater Tables for Fused Controllers............................................11-12Starter Fuse Selection ............................................................................................13-14Control Transformer Fusing ........................................................................................15Heat Loss Considerations ............................................................................................15Motor Load ..........................................................................................................................16Non-Motor Loads......................................................................................................16-19Publication References ..........................................................................................20-21Electrical Data ............................................................................................................22-23

Section K: Drawings & TestingE9000 MCC Unit Numbering System ....................................................................1-3Special Paint..........................................................................................................................4Packing & Storing................................................................................................................4Standard Commercial Tests & Inspection ..........................................................5-6

Section L: Typical CircuitsFVNR Size 1-4 ..................................................................................................................1-2FVNR Size 5-6 ..................................................................................................................3-4FVNR with Voltage Indicator Module ........................................................................5FVR Size 1-4 ..........................................................................................................................6RVAT Size 2-6 ........................................................................................................................72S2W-C.T., V.T., C.H. Size 1-4 ......................................................................................8-92S2W with MM200 ..........................................................................................................102S-PW Size 1-5 ..................................................................................................................11Wye-Delta Open Transition ................................................................................12-13Distribution Transformers ............................................................................................14Single-Phase Panelboard ............................................................................................15Three-Phase Panelboard..............................................................................................16FVNR with PLC....................................................................................................................17RVNR-AT with PLC ............................................................................................................182S2W with PLC ..................................................................................................................19ASTAT XT ..............................................................................................................................20ASTAT XT Bypass ..............................................................................................................21ASTAT XT Isolation Bypass ..........................................................................................22ASTAT XT Bypass Emergency Bypass ....................................................................23ASTAT XT Isolation Bypass Emergency Bypass ................................................24ASTAT BP ..............................................................................................................................25ASTAT BP Isolation............................................................................................................26Adjustable Speed Drives ..............................................................................................27High-Resistance Ground ..............................................................................................28MM200 ..................................................................................................................................29MM300 ..................................................................................................................................30

Section M: SpecificationsMCC 600 Volts & Below................................................................................................1-3

DET291F_Section_A:Layout 1 7/7/15 1:02 PM Page 1

Evolution Series E9000* Motor Control Centers

Evolution Series E9000: Safety and Flexibility are StandardGE’s Evolution Series E9000 Motor Control Centers (MCC) provide safe and flexible centralizing of motor starters andrelated control equipment. It combines motor control units,feeder units, distribution transformers, lighting panels, relays,remote and local control, sophisticated communications,metering and other miscellaneous devices to be containedin a single floor-mounted structural assembly fed from acommon enclosed main bus.

Rugged and ReliableGE motor control centers are constructed of standardizedheavy gauge vertical sections housing vertical and horizontalbuses, wiring channels and compartmented control units.Shipping splits are bolted together to form a single line-upassembly. Units are mounted and wired in accordance withthe wiring class specified. The motor control center may bepowered by incoming line connection at a single point protectedby an upstream disconnect or provided with a main protectivedevice within the equipment. Where possible, motor controlcenters bear UL section and unit labels.

E9000 with AFM: Even More ProtectionGE’s E9000 MCC with Arc Flash Mitigation (AFM) units is anew offering for customers and specific applications whereadditional protection of personnel is essential. The AFM unitswere designed around lowering the potential for electricalshock hazards in motor control centers.

The AFM unit design includes optional IP20 devices and incidentalcontact safety barriers in an effort to prevent accidentalcontact with energized parts during maintenance.

New Level of Arc Flash MitigationThe E9000 AFM units are designed to reduce the likelihood ofexposure to electrical shock and the potential of internal arcing faults from occuring during maintenance. The retractablestab mechanism allows for closed-door racking of the unit,providing added protection to the electrical personnel fromthe dangers of an arc flash occurrence.

The introduction of a compact NEMA contactor in these AFMunits will allow a minimum of IP10 protection with optionalIP20 terminal protection for starters using this contactor.Other IP20 protection options are available in starter unitsincluding IP20 control power transformer fuses and pilot devices.

E9000 MCC with Arc Flash Mitigation UnitsE9000 MCC


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Product Design and Features

Design flexibility, performance, personnel and equipmentpro tection, ease of maintenance and installation are all con-tained in the Evolution Series E9000*. Evolution Series E9000features, such as separate wiring troughs, split-type terminalboards, isolated bus, drawout starter units, operating mech-anisms, and provisions for starter interchangeability, are designed for a high level of reliability, safety and convenience.The new Arc Flash Mitigation (AFM) units were added in order toprovide additional safety features and flexibility for customers.

Enclosure FeaturesThese steel-enclosed control centers can be joined togetherto centralize, protect and control the most complex systemsof industrial auxiliary drives, or the simplest of loads such asfan or pump controls. As the need arises, additional sectionscan be added to an existing lineup in the field, often timeswithout the need for a transition section.

A paint finish is applied to all un-plated steel parts. The powdercoating process passes 1000 Hr. ASTM117B salt spray tests andprovides lasting protection.

All case side wireways are roll-formed to provide a 1/2" lip for crosswiring to rest on, thus preventing skinned insulation.

Easily removable plastic knock-outs are provided in the verticalwireway ladder assembly to allow routing of field wiring into units.

An incoming-line terminal compartment can be located at the top orbottom of a vertical section to allow cable termination with minimumbending. The standard 600-ampere incoming line terminal compartment shown is furnished with mechanical type lugs. Other incoming lineterminal compartments are available for main bus ampacities upto 2500 amperes.

An optional snap-in steel barrier in the wireway provides added isolation for low voltage signal wiring between units.


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ABus Features

Splicing

E9000 MCC can be spliced onto existing 7700 Line, 8000 Line andSpectra MCC for 1200A (supplied with 2" bars) and below without atransition section. Horizontal bus location in E9000 matches the existing bus location. Main bus amperage 1200A and greater with 4" bus bars can be spliced together but requires a transition section.

Main Bus Barrier

Clear Lexan barriers located in front of the main horizontal bus isolatethe bus from the top horizontal wireway. Maintenance personnelcan easily gain entrance to the top horizontal wireway of the controlcenter without danger of contact with a live bus.

Infrared Scanning

Windows on the main bus are available when required. Please contact the factory for further information.

Vertical Ground Bus and Unit Ground Stab

(Optional) Vertical copper ground bus allows direct grounding ofunit saddles to the equipment ground bus. A unit ground bus stabengages the vertical ground bus before the unit power stabs engage the vertical bus. A load ground lug is available for customercable grounding. Termination points are located at the rear of thebucket, next to starter.

Insulated and Isolated Vertical Bus

A polyester-reinforced “sandwich” insulates and isolates the verticalbus and helps prevent the spread of faults from starter and feederunits to vertical or horizontal bus. Small stab openings provide accessto vertical bus and maintains effective isolation. 65kA short circuitbracing is standard for Evolution Series E9000 MCC.

Vertical Bus Shutters

(Optional) For standard E9000 MCC’s, a vertical bus shutter mecha-nism can be supplied which covers the vertical bus stab area whena plug-in starter or feeder is withdrawn. Cap plugs are standard toclose unused stab openings.

(Standard for AFM) For E9000 AFM, a vertical bus shutter mechanismis supplied as standard. The shutter will be mechanically closedwhen the stabs are retracted, isolating the bus and preventing contact. When the stab is extended and engaged with the bus, theshutter will reverse the operation.

The vertical bus shutter for AFM design is different than the stan-dard E9000 vertical bus shutter option. The AFM shutter and shutterguide are shown above.


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Unit Features

Doors

New doors mounted on the case feature a removable hinge pinproviding easy door removal and accurate alignment.

AFM doors have a visual stab and shutter indicator feature as well as a remote racking provision.

New oversized laser-engraved unit nameplates on 12" units andlarger feature 1 to 9 lines of up to 20 characters 0.18" high or 4lines of up to 10 characters 0.30" high. Nameplates use Microsoft®

Windows® Arial font. Custom non-English characters are an option.

Device bracket mounts 30mm for compact pilot devices andbracket swings open to allow easy access to unit components,wiring and terminal blocks. Fully insulated – does not requiregrounding.

Stationary Stabs

Combination starter and feeder units of plug-in construction utilize a positive guidance system. Plug-in stabs are rated 250A and 600A. The 250A stab connections shown are made with copper unit power stabs which are under double spring pressureand engage the vertical bus to provide positive contact.

Retractable Stabs

Extended Stabs

Retracted Stabs

AFM unit stabs are retractable while maintaining a closed-doorunit. They move in a horizontal motion to engage and disengagefrom the bus when retracted (below) or extended (above).

The 600A stab shown uses a two-step engagement with verticalbus for low insertion/withdrawal force. Line side cables crimped directly into spring reinforced tin-plated copper stabs. No hiddenline side cable in rear of units. Tapered glass polyester stab mounting base gives positive plug-in alignment with vertical bus.

Evolution Series E9000 Motor Control CentersGeneral

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AUnit Features (continued)

Safety Interlocks

An interlock release system is provided so that – if it becomes necessary for maintenance purposes – the disconnect may beclosed with the door open. A by-pass is provided to allow openingthe door with the disconnect closed.

Note: Only qualified personnel familiar with the equipment should use the interlock release and by-pass features.

AFM units utilize a mechanical stab interlock on the top of the unit to prevent inserting the unit into the enclosure while the unit stabs are extended.

Padlocks

Units can be withdrawn to a disconnected position and padlocked for maintenance.The vertically mounted integral handle can be locked in the OFF position. A drilling pattern is furnished, allowing the handle to be modified for locking in the ON position with a single padlock. This modification should only be made afterthe user determines it is desirable to lock the disconnect in the ONposition. Padlock to have maximum 3/8" shackle.

Disconnects

Lift up handle design to allow full access to fuses and CB rating plug. Position indication ON-TRIP-OFF.

Horizontal handles are standard on 6" 150A and 12" 250A feederbreakers to optimize space. Optional vertical handles are available,but will increase the unit height. Horizontal handles are not avail-able with AFM units.

Evolution Series E9000 Motor Control CentersGeneral

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Unit Features (continued)

Interchangeable Units

Unit Features

For flexibility, many units can be interchanged. This design allows quick, easy field changes when modifications are desiredafter installation. Front accessible quarter-turn latches provide for ease of securing and withdrawal of all plug-in units.

AFM Retrofit Kit Unit Shelves

With the AFM unit, a different unit shelf is required to support themovement of the unit while it is being racked in or racked out.When retrofitting an existing E9000 MCC, a Retrofit Kit will need tobe ordered with the AFM Retrofit bucket. The Retrofit Kit will includethis AFM shelf.

AFM units can be ordered to retrofit existing E9000 MCC by ordering the AFM Retrofit Kit along with the unit.

High density two-piece, pull-apart control terminal boards featureup to 18 points in 12” high units. External and internal unit connections are made on opposite sides, allowing the unit to bewithdrawn without disconnecting control wiring. Accommodatesup to (2) #12 AWG wires with ring, fork or bare terminations. Rated 30 Amps, 600 Vac. Meets NEC Article 430.74.

(Optional) Motor power terminal blocks can be supplied in Size 1 & 2 to allow disconnecting motor wires when removing a unit.NEMA Type BT wiring.

The E9000 MCC unit is equipped with the CR305 contactor as standard configuration. The C2000 contactor is available for many configurations to obtain a compact footprint.

The E9000 AFM unit is equipped with the C2000 contactor as standard configuration. The CR305 contactor is available for most configurations. Please contact factory if the CR305 contactor is required in an AFM unit.


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AIP20 and Incidental Contact Barrier Features

(Optional) IP20 rated fuses are available. Please contact factory.

(Optional) CR104P Lights and Push butons are available with optional IP20 accessory. Please contact factory.

(Optional) C2000 Contactor is available with optional IP20 accessory. Please contact factory.

(Optional) Clear Lexan incidental contact barriers are available for CR305 contactor.

Wire and CableStandard control and power wire includes flame-retardant,(VW-1) moisture-heat-and oil-resistant thermoplastic insulation rated 600 volts, with stranded copper conductors,types MTW and THW.

Standard colors� are:Red – AC ControlBlue – DC ControlBlack – AC/DC Power and CPT primaryGreen – GroundWhite – Neutral

Optional wiring available includes SIS heat-resistant syntheticrubber-covered switchboard wire and XHHW flame-retardantcross-linked synthetic polymer, both rated 600 volts withstranded copper conductors, and a VW-1 flame rating (no PVC).

� Note: Not all colors are available with optional wiring.

NameplatesUnit service designation nameplates are furnished whenspecified. Nameplates can be supplied as blanks suitable forfield engraving, or engraved at the factory.

The standard unit service designation nameplate is of 2-ply thermoplastic material, black face with white core, 2 5/32" x 3 1/2", or 1" x 3" depending on the unit configuration,fastened with non-corrosive nylon clips. Stainless steel screwsare available as an option.

Nameplates are engraved with white letters on a blackbackground.


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Wiring Features by NEMA Classification Class I Class IS Class II Class IIS Type of Power or Control Termination Furnished A B C A B C B C B C Pull-apart and numbered control terminal boards on unit starter–Sizes 1, 2, 3 and 4 No Yes Yes No Yes Yes Yes Yes Yes Yes Stationary and numbered control terminal boards on unit starter – Sizes 5, 6 and 7 No Yes Yes No Yes Yes Yes Yes Yes Yes Pull-apart and numbered power terminal boards on unit starter –Sizes 1 and 2.

(On Type A wiring: Same type of numbered terminals on starter itself for Sizes 1, 2, 3 and 4) No Yes Yes No Yes Yes Yes Yes Yes Yes Numbered terminals on starter itself for power connection with no power terminal boards – Sizes, 5, 6 and 7 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Stationary master terminal boards (Top, bottom or rear of section)

For control – Sizes 1 thru 5 / For power – Sizes 1 thru 3 (E9000 Sizes 1 and 2 only) No No Yes No No Yes No Yes No Yes Unit terminal boards for feeder tap units and distribution panels No No No No No No No No No No Starter-unit-mounted pilot devices internally wired to starter – Sizes 1 thru 7 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Terminal board points for remote devices (Excluding extra tie points) No Yes Yes No Yes Yes Yes Yes Yes Yes Master terminal-board wiring connections No No Yes No No Yes No Yes No Yes Factory-wired interconnections between units in the same motor control center No No No No No No Yes Yes Yes Yes

Type of Drawings Furnished Outline and summary sheet (Schedule of units) Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Unit elementary wiring diagrams showing numbered terminal points (Terminal boards

not furnished on Type A) Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Unit elementary wiring diagrams showing numbered terminal points and interconnections

to other units and/or to the first level of remote devices No No No No No No Yes Yes Yes Yes Schedule of wires to master terminal blocks No No Yes No No Yes No Yes No Yes Custom drawings as specified by user No No No Yes Yes Yes No No Yes Yes

A computerized manufacturing process necessitates that the E9000 Line motor control center standard unit numbering system be followed to identify the section and location ofeach unit. This is explained in detail in application data (Section J). It greatly simplifies wire tracing of interconnection wires, and is beneficial to the application of programmablecontrol. The Outline and Summary drawing furnished with the equipment cross references the unit numbers and customer unit designations when specified.

NEMA Class of Diagrams and WiringMotor control centers are classified by NEMA asfollows:

NEMA Class I Definition�Class I motor control centers consist essentially of a mechanicalgrouping of combination motor control units, feeder tapunits and/or other units arranged in a convenient assemblyand connect to the horizontal and vertical common powerbus to the units.

This class does not include interwiring or interlocking betweenunits or to remotely mounted devices, nor does it includecontrol system engineering. Diagrams of the individual unitsonly are supplied.

NEMA Class II Definition�Class II motor control centers consist of a grouping of combination motor control units, feeder tap units and/orother units designed to form a complete control system.They include the necessary electrical interlocking and inter-wiring between units and interlocking provisions to remotelymounted devices in addition to the connections from thehorizontal and vertical common power bus to the units.

The control manufacturer shall provide a suitable diagramto illustrate operation of the control associated with themotor control center.

NEMA Class IS and IIS Definition�Class IS and IIS motor control centers shall be the same asClass I and II motor control centers except custom drawingsshall be provided in lieu of standard drawings.

� From NEMA Standard 18-2001.

Examples of custom drawings are:• Special identifications for electrical devices• Special terminal numbering designations• Special sizes of drawings

The drawings supplied by the manufacturer shall convey thesame information as drawings provided with Class I and IImotor control centers, additionally modified as specified bythe user.

When to Specify Class ISpecify NEMA Class I control centers for independently operatedmotors requiring no interlocking or other interconnectionbetween units.

When to Specify Class IIWhen factory interconnections are desired to provide suchfunctions as sequencing and other interlocking or intercon-nection, the control centers required are NEMA Class II.

When to Specify Class IS and IISWhen custom drawings are desired to show special deviceidentification, special terminal numbering, or special diagramsize, etc. the control centers required are Class IS or IIS.

Wiring TypeThe NEMA classes are sub-divided into A, B and C depending on the type wiring furnished, with type B further having typeB-D for customer load wiring direct to the device and B-T forcustomer wiring to a load TB (size 1 and 2 starters).

Note: For feeders and large starters, customer must wire direct to unit device terminals.

Note: In addition to NEMA prescribed wiring types, GE offers a NEMA 1A Modified MCC.This type of MCC will be supplied without wiring and without control diagrams. GE canmount low voltage control devices on the pilot device bracket and supply terminalboards. This would be considered on OEM product.


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A Codes and StandardsMotor control centers are manufactured to NEMA standard ICS 18and are eligible to receive the Underwriters Laboratories listing markunder standard UL 845. Vertical sections and units which have beenlisted with UL will bear the UL/cUL listing mark (see right for exam-ples). Since vertical sections and units are listed independently, it ispossible to have combinations of listed and non-listed sections andunits within the same control center. Sections and units which willbe shipped with the UL listing mark are identified in the appropriatesections of this publication.

The National Electrical Code (NEC) covers installation of electricconductors and equipment for installations identified in the NEC Article 90. The NEC is not intended as a design specification andacceptance of an installed motor control center by a local code authority relies on factors independent of the equipment asshipped from the factory. In general, equipment which bears theUL listing mark can be installed to meet the NEC. Compliance toNEC is the responsibility of the installer. Where 100 percent ULlisted equipment is mandatory or there are other special code requirements refer to the factory for verification.

The NEC defines several types of control circuits and the over-currentprotection required for each type. The following paragraphs providea general reference to the NEC Article applicable for the more common control circuits.

NEC Articles 430.72(a) and (b) cover motor control circuits tappedfrom the load side of a motor branch-circuit short-circuit protectivedevice (unit disconnect). Control circuit conductors from such atapped control circuit shall be protected in accordance with NECTable 430.72(b), which lists the maximum fuse or circuit breakerrating vs. conductor size.

Motor control circuits other than such tapped control circuits (commoncontrol transformers or external power source) shall be protectedagainst overcurrent in accordance with Section 725.12 or 725.35, asapplicable. This section of NEC also indicates the type power sourceand field wiring conductor sizes.

Where a motor control circuit transformer is provided, the trans-former should be protected in accordance with NEC Article 430.72(c).Transformers other than motor control circuit transformers shouldbe protected in accordance with NEC Article 450.3(b).

Section Label

UL #E33752, Vol. 1, Sec. 5.

Seismic Label


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Short Circuit ConsiderationsAll ratings in this publication are RMS symmetrical amperes

Short-Circuit Current RatingsThe NEMA Motor Control Center Standard ICS 18-2001 definesthe short-circuit rating of a motor control center as follows:

“The motor control center short-circuit rating shall be themaximum available rms symmetrical current in amperespermissible at its line terminals. It shall be computed as thesum of the short-circuit current contributions of the motorsconnected to the motor control center and the maximumavailable current, including all other short-circuit currentcontributions of the supply system at the point of connectionto the motor control center.”

Motor Control Center Bus

Fig. 1

Figure 1 illustrates simply the basis of determining the availableshort-circuit current. The individual short-circuit current ratings of the main bus extensions, combination-controllerunits and feeder-tap units must equal or exceed availableshort-circuit current.

Is is the short-circuit current available from the system at thepoint where the motor control center is connected. Im is theshort-circuit current contribution of the motors connected tothe motor control center. If exact information is lacking, themotor contribution can be estimated at four times (4X) thecontinuous-current rating of the main horizontal bus. Isc isthe available short-circuit current to be used as the basis forselection. Thus: Isc = Is + Im.

High available short-circuit currents of modern distributionsystems require special consideration so that equipmentmay be operated within its rating. The cost and operationalacceptability of the following should be carefully considered:1. Use load-center distribution systems with smaller trans-

formers which limit the available short-circuit current.2. Use a current-limiting busway, reactors or higher-impedance

transformers to reduce the available short-circuit current.3. Use current-limiting fuses, current-limiting breakers, or

breakers with limiters, in all combination starters andfeeders in the control centers.

Main Protective DevicesA motor control center requires adequate overcurrent andshort-circuit protection. This is the function of the main protective device. It may be located in or remote from the

control center and sized per NEC A or 240 for horizontal busprotection. Wherever located, it must have an interruptingrating equal to or greater than the available short-circuitcurrent at the point of its connection to the system. If locatedat the control center, this value would be the system availableshort-circuit current, Is (Fig. 1).

A motor control center should be protected for all types offaults from low-level arcing ground faults to bolted three-phase faults which can develop the full available short-circuitcurrent. Line-to-line and line-to-ground arcing faults (oftenproduced by contaminated atmospheres, foreign materials,etc.) can be appreciably lower in magnitude than the availableshort-circuit current and must be assumed not to be self-extinguishing. Even low-level arching faults are capable ofreleasing tremendous energy at the point of fault and canbe highly destructive.

A Spectra (molded case switch) or a non-automatic insulatedcase circuit breaker must be properly coordinated with upstream protective devices.

For full protection against all levels of arcing faults ongrounded systems, a ground-fault relay is recommended.The ground-fault system is a protective means that respondsto phase-to-ground current, but is not affected by phase-to-phase current. It is used to protect motor control centersfrom extensive damage, which can be caused by phase-to-ground arcing faults.

Fuses are single-pole interrupters. An arcing fault may notnecessarily be cleared by a single-pole interruption, as thefault can be back-fed from the other energized phases. Thisreduces the fault current, increasing the blowing time of theenergized fuses. Because of this delay, severe equipmentdamage may occur. Single-phasing is eliminated with fast-acting three-pole fused interrupter switches which openwhen a single fuse blows.

An electrically operated HPC switch with single-phase detectorwill meet the three-phase disconnection (single-phase protection) recommendations for a main protective device.

When switches without a three-phase trip are used, an ITIBGFL ground-fault protection scheme is particularly recom-mended since damaging arcing faults almost always involveground. It should operate the trip device on the closest line-side three-phase disconnect.

Main Horizontal Bus and Vertical Bus ExtensionsThe standard bus short-circuit withstand rating is 65 kAIC symmetrical amperes. Also available as an option is 100kAIC.The bus rating must equal or exceed the available short-circuit current. Refer to Structure (Section B) for ratings.


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ACombination Motor Control UnitsThe short-circuit rating of a combination controller is basedon tests with rated short-circuit current available at the lineterminal of the control center and at rated voltage. Theshort-circuit rating must equal or exceed the availableshort-circuit current. Refer to Starters (Section D) for ratings.

Feeder Tap UnitsAll feeder tap units must have a short-circuit rating whichequals or exceeds the available short-circuit current. Referto Feeders (Section C) for ratings.

Fuse Classification

UL classifications are the most definitive method of determiningfuse characteristics, and are used in this publication. Use ULfuse “Class” when specifying type of fuse.

UL classifications used in motor control centers are:

A. Class R – current-limiting type fuses with reject mountingfeatures. Class R fuses are sub-divided into Classes RK-1 andRK-5, depending on maximum peak let-through currents.RK fuses are rated 600 amperes maximum and 250 voltsor 600 volts.

B. Class J-TD – are more current limiting than RKs and due totheir unique dimensions have an inherent rejection feature.Ratings are 600 amperes maximum, 600 volts. (Time delayClass J-TD fuse may limit component damage under fault.)

C. Class L – are current limiting and due to their uniquemounting dimensions have an inherent rejection feature.Ratings are 601 amperes minimum, 600 volts.

Fuses marked with “Time-Delay,” “Dual-Element” or similardesignations are time-delay type fuses and will generallycarry 500 percent rated amperes for 10 seconds, thus allowinga smaller rated fuse to be used in most starter applications.

Fuses that are mechanically interchangeable may not beelectrically equivalent. Refer to the fuse manufacturer for interrupting rating and current-limiting characteristics.

Fuse Classifications

� Check fuse manufacturers for specific fuse characteristics

Environmental Considerations

The standard E9000 motor control center is designed for operation in a clean, indoor environment having a 40°Cmaximum ambient temperature.

The nominal minimum temperature for storage is -40°C andfor operation, -20°C. Motor control center space heaters arerecommended whenever temperature conditions below 0°Cwill exist. Where extreme cold temperatures are to be encoun-tered for long periods of time. It is recommended that themotor control center be installed in heated rooms or enclosures.

For ambient temperatures above 40°C, special considerationmust be given to the need for ventilation, ambient-compensatedbreakers and overload relays, special wire insulation andoversized control transformers. Ambient compensated over-loads provide essentially constant trip setting as the controlambient varies.

For indoor environments subject to falling liquids, NEMA 2dripproof enclosures are recommended. If water spray andsplashing are to be encountered, NEMA 2 construction shouldalso be used. Space heaters may be desirable to preventcondensation on internal parts.

For outdoor installations, NEMA 3R non-walk-in weatherproofenclosures are required. Thermostatically controlled spaceheaters and ambient-compensated breakers and overloadrelays should be considered for these applications. Provisionsfor heating and cooling the entire outdoor enclosure arealso available. Standard NEMA 3R construction is suitable forwind velocities up to 75 mph. Beyond this, up to 130 mph,specially reinforced enclosures are available through Strategic Equipment Packaging Services. This special designis also necessary if the NEMA 3R enclosure has to withstandseismic conditions, including seismic Zone 4 applications.

E9000 motor control center is available for earthquake conditions.It is IBC rated. Please see DET-463.

For dusty atmospheres, see Section B.

The altitude limit for the standard electro-mechanical motorcontrol center design is 6000 feet. Applications above thisshould be referred to the Company for recommendations.Some solid-state components are only rated to 3300 feetand may reduce the altitude limit of the motor control center.

Fungus-proofing of organic materials is inherent. Keeping equip-ment dry and above the dew-point is the best way of avoidingfungus-growth, and the use of space heaters is recommendedfor this purpose. Heaters should be energized if the motor controlcenter is to be stored for any length of time. Where export cratingis involved, provisions must be made on the outside of thecrate for access to space heaters.

Characteristic� UL StandardClass J-TD Class R Class LAmpere Range 0-600 0-600 601-6000

Voltage Ratings 600 250 600600InterruptingRating RMSSymmetrical Amperes

200K 200K 200K

Current-Limiting Yes Yes YesRejection Type Yes Yes Yes

Evolution Series E9000* Motor Control CentersStructure

B

B1

Enclosure Types

GE motor control centers are made up of standardized verticalsections housing vertical and horizontal bus, wiring channelsand compartmented control units. Sections may be bolted together to form a single panel assembly powered by lineconnection at a single point. Normal shipping split is three sections maximum.

NEMA Type 1 – Gasketed – Semi Dust-tight, IndoorIntended to cushion doors and mitigate vibration. Standardfinish is light-gray ANSI 61 over a phosphate rust inhibitor.All unpainted parts are zinc-chromate electroplated or galvanized. Enclosures are furnished with bolt-on rear covers.Hinged rear doors are available as an option. Pan-typedoors utilize quarter-turn fasteners. Gasketed doors, coverplates, and operating handles are available as an option.Two heavy-duty 3" by 1-1/2", 12-gauge floor sills and 1/4"structural lifting lugs are included. Open bottom is standard.

NEMA Type 2 – Drip-proof, IndoorIntended for use indoors to protect the enclosed equipmentagainst falling noncorrosive liquids and falling dirt. Dripshields

on top of the motor control center and neoprene closed-cellgasketing afford protection from falling and splashing liquids.They are not water-tight. Similar to NEMA 12 gasketed construction except with catch pan-type dripshield on topand with open bottom. Dripshield extends four inches beyondfront of motor control center. Standard finish: light gray ANSI61. Furnished with removable conduit cover plates unlessotherwise specified.

NEMA Type 3R – Rain-proof, OutdoorIntended for use outdoors to protect the enclosed equipmentagainst rain. They are not dust-proof, snow-proof nor sleetproof (ice-proof).

Type 12 – Industrial Use – Dust-tight and Drip-tight, IndoorIntended for use indoors to protect the enclosed equipmentagainst fibers, flyings, lint, dust and dirt, light splashing,seepage, dripping and external condensation of noncorrosiveliquids.

1HGSimilar to NEMA 1 gasketed construction except that bottomplates are furnished and all removable plates are gasketed.


B2

B

Indoor EnclosuresFront Elevation & Mounting Locations (13", 20", 22" & 25" Deep Sections)


B

B3

Indoor EnclosuresSide Elevations 13" Deep Section 600A to 1200A Main Bus

Side Elevations 20" Deep Section 600A to 1200A Main Bus


B4

B

Indoor EnclosuresSide Elevations 25" Deep Back-to-Back Section 1200A Main Bus

Side Elevations 22" Deep Section 1600A to 2500A Main Bus


B

B5

Indoor EnclosuresSide Elevations 25" Deep Back-to-Back Section 1600A to 2500A Main Bus

Top Conduit Entry (13", 20", 22" & 25" Deep Sections)


B6

B

Indoor EnclosuresBottom Conduit Entry 13" Deep Section

Bottom Conduit Entry 20" Deep Section


B

B7


Bottom Conduit Entry 25" Deep Section


B8

B

Indoor EnclosuresElevation and Mounting 30" Deep Section 600A to 1200A Main Bus

Top Conduit Entry 30" Deep Section


B

B9


Details for Auto Transformer


B10

B

Indoor EnclosuresDrip Pan — Nema II 13" Deep Section

Drip Pan — Nema II 20", 22", 30" Deep Sections

Drip Pan — Nema II 25" Deep Section Back-to-Back


B

B11

Indoor EnclosuresType C Master Terminal

Used for L and U Shaped Motor Control CenterArrangements

Back-to-back Configuration with Wrap-Around Corner Section

The wrap-around corner section is standardsections which accommodate plug-in units,therefore no space is lost in the transition.


B12

B

Indoor EnclosuresIncoming Line Terminations


B

B13

Indoor Enclosures


B14

B

Outdoor Enclosures

UL Listed Type 3R Non-Walk-In Enclosure (Standard)The standard NEMA 3R enclosure consists of a specially constructed MCC section with a mating framework whichsupports the roof and extended front. The basic design issimilar to switchboard construction. The smaller footprintwill permit a broader usage than the optional NEMA 3R construction. Meets Seismic Zone 4.

• Three-point door latch• 90° door with wind stop• Reinforced roof• Crane lifting• 2° roof pitch• Shipped via flatbed truck• 3" floor sills


B

B15

Enclosure Options

Space HeatersSpace heaters are used to prevent moisture condensation onthe inside of the motor control center. One heater (62.5 wattsat 120 volts AC) is installed in the bottom of each verticalsection. UL requires space heaters be controlled by a ther-mostat. One thermostat can control up to 23 heaters and islocated in the top horizontal wireway.

A terminal board for connecting an external 120-volt powersource is standard. The terminal board is located in the top horizontal wireway adjacent to the thermostat(s). This is recommended since it permits the space heaters to be energizedeven when the motor control center itself is deenergized. Ifexport crating is involved, the space heater circuit can bewired to an external plug for energizing the heaters duringshipment and storage.

When specified, space heater power can be provided fromwithin the motor control center. Include the required distributiontransformer with primary and secondary protection in themotor control center.

An enclosed foreign voltage disconnect switch is available asan option.

Bottom PlatesPlates bolt on to the bottom of each motor control centersection. They may be removed to facilitate installing conduit.

Extended Height Pull Box (Top Hat)A pull box can be mounted on top of a vertical section whenspecified. The standard height is 12 inches; 6-, 18-, and 24"heights are also available. Top, front, and end covers are re-movable for access.

Special transitions to 8000 line and low-voltage switchboardsare available upon request. Please consult factory.

Rodent BarriersMetal plates bolted to the bottom of each end section to closethe opening between the front and rear floor sills. Not requiredif the floor sills will be removed or imbedded in concrete.

Extra Width Vertical Wireway24" wide sections can be furnished with 8" wide verticalwireway and door.

Motor Control Center ConstructionMajor Structural Components Side Sheets, L-H & R-H 0.075"Vertical Bus Mounting Channels 0.090"Case Sills, Front/Rear, Top/Bottom (13 Gauge)Top Horizontal Channel

Lifting Channel (Top) 0.187"Channel Sills, Front/Rear 0.105" (12 Gauge)Enclosing Covers/PanelsRear Covers, 13" & 30" Deep 0.075" (14 Gauge)Rear Covers, 20" & 22" Deep 0.060" (16 Gauge)Endplates 0.060" (16 Gauge)Top Conduit Covers 0.060"Bottomplates 0.060"Vertical Wiretrough Door 0.060"

Other SteelUnit Barrier Shelves 0.063"Unit Cover Doors 0.075"Unit Saddles 0.090"


B16

B

Enclosure Options

Note that bolt down locations for sections with seismic bracingchange from center of structure (left to right), to four cornerswith .635 clearance holes for 1/2" bolts.

Mounting Requirements for Seismic NEMA 3R with Optional Heavy Base

Note:Seismic Zone 4 testing was performed using 1/2"-13 Grade 5 bolts, torqued to 70 foot-pounds, located in each of the four corners in each section.

Estimated shipping weights per section

Center of Gravity

For a uniformly loaded 90" high x 20" deep lineup, center of gravity is:

X = center of lineupY = 46 1/2" above bottom of floor sillZ = 8" in from front (front-mounted devices 20" deep)OR: 10" in from front (back-to-back construction)Z = 5" in from front (13" deep)Z = 8 1/2" in from front (22" deep)Z = 11" in from front (25" NEMA 3R)

Typical variations due to uneven loads:X = ± 5"Y = ± 1"Z = ± .5"

Sections Lbs Kg

90"H x 20"W Indoor Type 1 & 12 500 272

90"H x 20"W Indoor Back-to-Back Type 1 & 13 700 318

90"H x 20"W Outdoor Type 3R 725 329

91.5"

20" Y

Z

X

FRONT VIEW

NEMA 3REND VIEW

ARCWELD

NEMA 3RFRONT VIEW

6" MIN.WELD

ARC WELD DOWN LENGTH OF NEMA 3R EVERY 40" OR LESS

FOR 130MPH WINDS AND 2.25G SHOCK (LENGTH & DEPTH PER OUTLINE)

10" MIN.WELD

10" MIN.WELD

6" CHANNELANCHORED

ARC WELD ALL FOUR CORNERS (3/16" BEAD)

CEMENT PAD

MIN. 8" H BEAMANCHORED FRONT

AND REAR40" OR LESS


B

B17

Bus Systems/Selection�

All values shown based on 1200A/sq.in. density rating. Alternate density ratings are available; if required, consult factory.

� Requires a 22" deep section.� Will not except 600A stabs.� Provided with fans.� 1200A horizontal or higher.� Bus ratings based on UL Temperature Rise testing.� When greater than 1000A, a main breaker with service entrance must have a ground fault.

Bus Selection

All continuous-current rating selections or recommendationsare based on the motor control center being located in amaximum 40° C (104°F) ambient. Refer to General (Section A)for other environmental considerations.

Main Horizontal BusThe size of motor control center main bus and cables feedingthe main bus is based on the current-carrying capacity required for motors plus other connected loads.

The capacity required for motors can be taken as 125 percentof the full-load rating of the largest motor plus 100 percentof the full-load rating of all other motors to be operated at thesame time. Modified requirements resulting from duty-cycleor demand factor can be taken into account.

The current-carrying capacity required for other connectedloads should be computed on the basis of 100 percent of thesum of individual loads except where a demand factor canproperly be applied to reduce this total. Considerationshould be given to future requirements.

Vertical Bus ExtensionsVertical bus is available in 30" wide enclosures maximum.The maximum vertical bus loading is calculated as follows:80 percent of the feeder trip or fuse clip rating, plus 100 percent of the starter full load amps, plus 25 percent of thelargest motor full load amps. This total cannot exceed thevertical bus rating. Tin plated copper vertical bus is standard,with silver plating as an option.

Neutral BusNeutral lugs will be provided as applicable. Neutral bus isnormally sized at 50 percent of the main bus ampacity.

Ground BusNEC requires a ground bus in multisection motor controlcenters. 300 ampere Cu ground bus will meet minimum sizerequirements for main busses rated through 2000 amperes.A clearance hole for 3/8" hardware is provided in each section.The default for incoming ground termination is (3) #2-1/0 for300A ground bus and (3) 1/0-500 kcmil for 600A ground bus.Ground bar comes with 6 predrilled holes for ground connectors.

OptionsThe following UL listed options are available:• Shutter mechanism for vertical bus stab openings.• Fully-insulated main horizontal bus.• Silver plated horizontal and vertical bus.• Silver plated ground bus.

MCC BusContinuous Current� Material Short-Circuit Rating in RMSSymmetrical Amperes–(kA) UL Notes

Rating Amperes Cu 65 100

Main Horizontal

600 X X X 1/4" x 2" Bus

800 X X X 3/8" x 2" Bus

1200 X X X 1/2" x 2" Bus

1600� X X X (2) 1/2" x 2" Bus

2000� X X X (2) 1/2" x 2" Bus

2500�� X X X (2) 1/2" x 2" Bus

Vertical

300� X X X 3/8" x 3/4"

600/850� X X X 3/8" x 1 1/2"

300 X X

600 X X

Neutral

800 X X

1200 X X

1250 X X

Horizontal Ground300 X X 1/4" x 1"

600 X X 1/4" X 2"

Vertical Grounds 150 X X 1/8" x 1"

Evolution Series E9000* Motor Control CentersMains, Feeders, Incoming Lines

C

C1

Mains

GeneralMain units consist of an externally operable circuit disconnect,either a fusible switch or a circuit breaker. Sizes by ampererating, short-circuit rating, type construction and space unitsrequired are given in the accompanying lists.

Normally, thermal magnetic circuit breakers or fuses arenecessary for main protection. The short-circuit interruptingrating depends on the type disconnect furnished. Select amain unit for which the interrupting rating equals or exceedsthe maximum available fault current.

For reverse-fed circuit breakers, refer to factory for details.

Refer to specific breaker publications for time-current characteristics and programmable options for the varioustypes of circuit breakers. A list of these publications is givenin Application Data (Section J).

Service EntranceUL listed main units containing only circuit breakers or fusedswitches may be UL classified as suitable for service entrance.If a single disconnect is furnished as a disconnect for all loadcircuits the unit will be marked “Main”.

In order for the units to be classified as suitable for serviceentrance, the incoming phase conductors must connect directly to the disconnect device line terminals or to a ULlisted main line terminal assembly.

A grounding electrode conductor terminal connector sizedin accordance with the circuit ampacity is furnished in onesection. Three-phase, four-wire systems include a neutralbonding jumper for grounding the neutral conductor duringinstallation. Ground fault protection is required for disconnects1000A and above for solidly grounded wye services, wherephase-to-ground is more than 150 volts (NEC 230.95).

Main Metering/LugsCurrent transformers (CTs) can be provided in the main compartment for use with a metering unit. This option mayincrease space requirement.

If crimp type lugs are required, a bus assembly is fabricatedto provide a landing pad for these terminals. This extends thespace required for the main and must be factory installed.Size will be the same as NEMA lug option.

UL Listed Fused Switch Mains

� With Class J, R and L fuses.� Requires a 24" wide by 20” deep section. Full depth of enclosure is required.� Requires 30" wide by 30" deep section. Must be NEMA 1 Construction, 80% rated only.� Class J fuse is 3X.

Amperes

Interrupting Rating RMS Amps (In thousands)� Construction Space

Units NotesVolts Stab-In Bolt-In

240 480 600Fusible Switches200 100 100 100 X 2

400 MCS 100 100 100 X 4 �600 MCS 100 100 100 X 4 �High Pressure Contact (HPC) Switch800 100 100 100 X 6 �1200 100 100 100 X 6 �1600 100 100 100 X 6 �

2500 100 100 100 X 6 �


C2

C

Mains

Circuit Breaker Mains – Standard Selection

� When a size 6 or 7 starter is in the motor control center lineup, use a 1200 ampere microEntelliguard Trip Unit circuit breaker as a main.� Requires special section 90" high, 24" wide, 20" deep.� Requires special section 90" high, 30" wide, 30" deep.� Main breaker must be mounted at top of the section and requires full 20" depth of enclosure.� Requires special section 90" high, 30" wide, 30" deep. When section is on the left, allow for a 5" spacer to permit unit doors on the right to open.� For UL or service entrance labels provide main breaker in switchboard construction.� Consult factory for availability.

Data subject to change without notice

Amperes CB TypeIC (kA)

Stab-In Bolt-InSpaceUnits

UL (X)Listed

NotesEntryTop/Bot240V 480V 600V

Spectra Thermal Magnetic

150 SEL/SEP 65/100 65/100 25/25 X 1 X T/B

250 SFL/SFP 65/100 65/100 25/25 X 11⁄2 X T/B

600 SGL/SGP 65/100 65/100 65/65 X 2 X T/B

1200 SKL 65 65 42 X 3.5 X �� T/B

Power Break II* Insulated-Case with EntelliGuard TU Trip Unit

800 SSF/SHF 65 65 42 X 6 (24W) X � T/B

1200 SSF/SHF 65 65 42 X 6 (24W) X � T/B

1600 SSF/SHF 65/100 65/100 42/65 X 6 (30W) X � T/B

2000 SSF/SHF 65/100 65/100 42/65 X 6 (30W) X �� T/B

2500 SSF/SHF 65/100 65/100 42/65 X 6 (36W) X �� T/B

800 SSD 65 65 42 X 6 (30W) — �� T/B

1600 SSD 65 65 42 X 6 (30W) — �� T/B

2000 SSD 65 65 42 X 6 (30W) — �� T/B

Ground-Fault Protection of Equipment per NECEach main or feeder disconnect rated 1000 amperes or moreand installed on a solidly grounded wye electrical system ofmore than 150 volts to ground, but not exceeding 600 voltsphase-to-phase, will be provided with ground-fault protectionof equipment.

Exception No 1: The above is not required if the disconnectis for a continuous industrial process where a non-orderlyshutdown will introduce additional or increased hazards.

Exception No 2: The above is not required for fire pumps. Exception No 3: The above is not required if ground-faultprotection is provided ahead of the equipment.

Note: The above is paraphrased from NEC section 215.10, 215.95 and 240.13.


C

C3

Arc Flash Mitigation (AFM) Main andFeeder Units

The E9000 AFM units are designed to reduce the likelihood ofexposure to electrical shock and the potential of internal arcingfaults from occurring during maintenance. The retractable stabmechanism allows for closed-door racking of the unit, providingadded protection to the electrical personnel from the dangers ofan arc flash occurrence. The introduction of a compact NEMAcontactor in these AFM units will allow a minimum of IP10 protection with optional IP20 terminal protection for startersusing this contactor. The 300-Line Legacy NEMA contactor is remain available with this new design. Other IP20 protection options are available in all starter units including IP20 controlpower transformer fuses and pilot devices.

For more information see page D2 and GE Publication DEA-593.

AFM Circuit Breaker Mains — Standard Selection

Amperes(Up To)

CircuitBreaker Type

Interrupting Rating RMS Amps (In thousands) Construction Space

UnitsVolts Retractable480 600 Stab-In Bolt-In

Spectra Thermal Magnetic150 SEL/SEP 100 65 X 1

150 SELT-L/SEPT-L — 65 X 1

250 SFL/SFP 100 65 X 1.5

600 SGL/SGP 100 65 X 2


C4

C

Feeders

Feeder units consist of an externally operable circuit disconnect,either a fusible switch or a circuit breaker. Thermal magneticcircuit breakers are required unless the feeder supplies acritical circuit, such as a fire pump controller.

Select the fuse or circuit breaker trip rating based on thefeeder circuit continuous current rating in accordance withthe NEC. Feeder unit short-circuit interruption ratings mustequal or exceed the available short-circuit currents.

Fused Switch Feeders

� Top/bottom entry.� Dual or twin feeder units.� Requires a 24" wide by 20" deep section. Full depth of enclosure is required.� Requires a 30" wide by 20" deep section. Full depth of enclosure is required.

Amperes

Interrupting Rating RMS Amps (In thousands)�

Construction SpaceUnits

�

UL (X)Listed

NotesVoltsStab- In Bolt- In

240 480 600

Fusible Switches30 100 100 100 X 1 X

30/30 100 100 100 X 1 X �

60 100 100 100 X 1 X

60/60 100 100 100 X 1 X �

100 100 100 100 X 1.5 X

100/30 100 100 100 X 1.5 X

100/60 100 100 100 X 1.5 X

100/100 100 100 100 X 1.5 X

200 100 100 100 X 2 X

400 MCS 100 100 100 X 3 X

600 MCS 100 100 100 X 3 X

High Pressure Contact (HPC) Switch800 100 100 100 X 6 X �

1200 100 100 100 X 6 X �

1600� 100 100 100 X 6 — �

AFM Fused Switch Feeders – Standard Selection

Amperes Interrupting

Rating (In thousands)

ConstructionSpaceUnitsRetractable

Stab-InFusible Switches

30 100 X 1

60 100 X 1

100 100 X 1

200 100 X 2


C

C5

Feeders

Circuit Breaker Feeders – Standard Selection

Accessories

Accessories for Mains and Feeders

AFM Circuit Breaker Feeders – Standard Selection

� When feeder unit accessories are required such as shunt trip, Aux switch, UV release, etc., unit height must be a minimum of 1 space.� 1X units are available with horizontal handle.� Requires full depth of enclosure; (20" deep minimum).� Feeder units 1000A and over should have ground fault sensing on three-phase, four-wire systems where line to ground voltage is more than 150V.

� 600VAC not UL Listed. � G and K Frame only.� Shunt trip requires aux switch (G&K) or bell alarm (E&F) for continuous operation.� Aux switch available @ 240V max only.

AmperesCircuitBreakerType

IC (in thousands)Stab-In Bolt-In

SpaceUnits

UL (X)Listed

NotesEntryTop/Bot240V 480V 600V

Spectra Thermal Magnetic

100 SEL/SEP 65/100 65/100 25/25 X 1/2 X T/B

100/100 SEL/SEP 65/100 65/100 25/25 X 1 X T/B

150 SEL/SEP 65/100 65/100 25/25 X 1/2 X T/B

150/150 SEL/SEP 65/100 65/100 25/25 X 1 1/2 X T/B

250 SFL/SFP 65/100 65/100 25/25 X 1 X � T/B

250/250 SFL/SFP 65/100 65/100 25/25 X 2 X � T/B

600 SGL/SGP 65/100 65/100 65/65 X 2 X T/B

1200 SKL 65 65 42 X 3.5 X �� T

Circuit BreakerAccessories

Bell Alarm Auxiliary Switch Shunt Trip Undervoltage Release RELT

Spectra X Up to 2� X� X X�

Power Break II X� Up to 12� X X X

HPC X Up to 12� X X X

Amperes(Up To)

CircuitBreaker Type

Interrupting Rating RMS Amps (In thousands) Construction Space

UnitsVolts Retractable480 600 Stab-In

Spectra Thermal Magnetic150 SEL/SEP 100 25/65 X 1

150 SELT-L/SEPT-L — 65 X 1

250 SFL/SFP 100 65 X 1.5

600 SGL/SGP 100 65 X 2


C6

C

Options for Mains and Feeders

Terminals for Field Wiring Mains and Feeders

� Conductor #1 and smaller may be noted 60/75°C. Conductors #0 and larger must be rated 75°C.� Conductor sizes based on 1/Ph unless otherwise indicated.� Feeders.

Accessories for Fused SwitchesFused switches can be ordered with up to two auxiliary contacts which are available in the following UL listed configurations: 1 normally open, 1 normally closed, 1 normally open/1 normally closed, or 2 normally open.

Accessories for High Pressure Contact (HPC) Switches• Motor Operator Mechanism• Remote Close• Undervoltage Release• Shunt Trip with Lockout• Bell Alarm–Alarm Only• Bell Alarm with Lockout• Auxiliary Switch Module• Mechanical Counter• Key Interlock Mounting Provision• Push Button Cover• Door Interlock• Blown Fuse Protector

Key InterlockingProvisions for key interlocking can be provided on all circuitbreakers over 250A and fusible switches over 100A. Thestandard key lock is by Superior Lock Corporation. However,coordination with Kirk key locking will be supplied if necessary.The following information is required when lock coordinationis to be provided with other up-stream or down-stream devices remote from the motor control center:

PURCHASED BY ________________________________ULTIMATE USER ________________________________DESTINATION __________________________________LOCK MANUFACTURER __________________________LOCK NUMBER_________________________________PURCHASE ORDER NUMBER______________________

Note: Minimum 24" high units are required for key interlocking. UL listed option.

Ground Fault ProtectionTwo types of UL listed ground fault protection can be pro-vided as an option with feeder and main circuit breakers. Ashunt trip device is required in the circuit breaker to trip thebreaker if a ground fault should occur. ITI BGFL ground breakprotective relaying is recommended for main breaker applica-tion. Model #252 ground fault relaying is recommended formost feeder applications. See Components (Section H) fordescription of both ground fault relay types. A minimum of12" additional space height is required in addition to thestandard space height shown for each main feeder unit.

A separate 120-volt source for the shunt trip circuit will decrease the additional space required.

Refer to page J19 for application help.

Terminal SizeWill Accept Wire�

AWG/kcmil� Material

Switches

30A QMW 14-8 Cu-Al

60A QMW14-2 Cu

12-2 Al

100A QMW14-1/0 Cu

12-1/0 Al

200A QMW (1) 6-250 Cu-Al

400A MCS (Molded Case Switch)(1) 2-350� Cu-Al

(1) 8-600 Cu-Al

600A MCS (Molded Case Switch)

(1) 8-600 Cu-Al

(1) 4-500� Cu-Al

(2) 6-500 Cu-Al

HPC Switch— 800-1600A

300-750 Cu

300-800 Al

Circuit Breakers

SE150 15-150A 1 lug 12-3/0 Cu-Al

SF250 70-225A 1 lug 8-350 Cu-Al

SG600 1 lug 6-600 Cu-Al

125-600A 2 lugs 2/0-500 Cu-Al

SK1200 3 lugs (800A) 3/0-500 Cu-Al

300-1200A3 lugs 300-750 Cu-Al

4 lugs 250-400 Cu-Al


C

C7

Incoming Line Terminations

The following cable terminal compartments are commonlyspecified for use in motor control center construction wherethe main AC power disconnect is located upstream of themotor control center.

For other custom cable termination arrangements refer to aGE sales representative. The number of cables indicatedmust not be exceeded to maintain the short-circuit rating.

� Space shown above is for 20" deep design 800A to 1200A MLO.� Burndy type YA crimp lugs is available as an option. Crimp Lugs require NEMA drilling and NEMA Lug spacing.� Mechanical compression Cu/Al Lugs furnished for 75°C cable.� Cu/Al standard. Copper only lugs are available as an option. These may affect number of cables per lug.� NEMA wire bending rules reduce cable size if entry is from the side.� 13" deep requires full section no vertical bus.� Lug cable range may be larger than the NEMA bending allows above.

Fig. 1

C

B

A

Busway EntrancesGE motor control centers include provisions for connectingGE busway. Busway must be braced for maximum availableshort circuit current. Minimum enclosure sizes for buswayare shown in the adjacent table. Refer to the factory forother type busway. Include busway requisition numberwhen ordering motor control center.

Spectra SeriesBusway

Note: Bus bars must be phased front-to-rear in 24" width enclosure. Bottom entryrequires full section. For busway, refer to factory.

Entry Pull Box Enclosure SizeMax. Busway AmpacityCu Al

Std 1000A/IN2 Std 750A/IN2

Top 12" 30"W x 22"D 1600 1500 1350 1000Bottom – 30"W x 22"D 1600 1500 1350 1000Top 12" 30"W x 22"D 2000 2000 2000 2000

Bottom – 30"W x 22"D 2000 2000 2000 2000Top 12" 36"W x 22"D 2500 2500 2500 2500

Bottom – 36"W x 22"D 2500 2500 2500 2500

Incoming Line CableAssemblies

MLO Space in inches /Vertical Space Available Cables/lug� Cables/phase Cable Range PerNEMA Bending�

MinimumWidth &Depth

Top Feed Conduit Space

(Fig.1)Top Bottom

600A Std. Lug��

18/66 - 2 2 #2-350 kcmil 20"x13" 5"x13.7" A-B

18/66 - 3 3 #6-300 kcmil 20"x13" 5"x13.7" A-B

- 24/54 2 2 #2-600 kcmil 20"x13" 5"x13.7" A-B

- 24/54 3 3 #2-500 kcmil 20"x13" 5"x13.7" A-B

- 30/48 1 2 #2-600 kcmil 20"x13" 5"x13.7" A-B

600A NEMA Lug�18/66 - 1 2 #2-350 kcmil 20"x13" 5"x13.7" A-B

- 30/48 1 2 #2-600 kcmil 20"x13" 5"x13.7" A-B

800A/1200A GE Std. Lug��

24/60 24/54 4 4 #2-500 kcmil 20"x13" 5"x13.7" A-B

24/60 24/54 3 3 #2-600 kcmil 20"x13" 5"x13.7" A-B

30/54 24/54 4 4 #2-600 kcmil 20"x13" 5"x13.7" A-B

800A/1200A NEMALug

- 30/48� 1 4 500-750kcmil 24"x13" 5"x13.7" A-B

36/58 36/42 1 4 500-1000kcmil 24"x13" 5"x13.7" A-B

1600A NEMA Lug 72/0 72/0 1 8 500-1000kcmil 30"x30" 13"x17.7" A-C

2000A NEMA Lug�� 72/0 72/0 1 8 500-1000kcmil 30"x30" 13"x27.6" A-C

2500A NEMA Lug�� 72/0 72/0 1 10 500-1000kcmil 36"x30" 13"x27.6" A-C


C8

C

Automatic Transfer Switches

GE motor control centers may be furnished with GE Zenithtransfer switches. The switch is mounted in a separate unitand cable-connected to the motor control center bus. Manual control, pushbuttons, pilot lights and switches maybe door-or bracket-mounted within the unit. Up-streamovercurrent protection must be provided for each powersource. The unit can be UL listed if all components are listedfor use in motor control center equipment.

The following features apply to ZTSD open-type switcheswhich are UL listed through 480 volts and CSA listed through600VAC. For specific ratings and additional optional featuresrefer to GE Zenith.

GE Zenith ZTSD Utility to Generator time delay MX 250 Module Standard Features:

6P Microprocessor activated test switch (momentary)A3 Aux Contact - closed in emergency (Source 2)

Additional available up to 10, must be specifiedA4 Aux Contact - closed in normal (Source 1)

Additional available up to 10, must be specifiedCDT Exerciser no load timer

DS Disconnect Switch for source voltage to transferpower panel, 600A to 1200A only

DT Time Delay from Neutral Switch position to Source 1 on retransfer

DW Time Delay from Neutral Switch position to Source 2 on retransfer

E Engine Start RelayEL/P Event Log of last 16 eventsK/P Frequency Indication on the controllerLNP Center-off position LCD-IndicatorL1,2,3,4 LED lights, Source 1&2 position, Source 1&2 availableP1 Engine Start Timer (adj. To 6 sec.)R50 In Phase monitor between Normal (Source 1) and

Emergency (Source 2) to allow transferS13P Microprocessor activated commit/no commit on

transferring to Emergency (Source 2) (with enable/disable settings)

T Retransfer to Normal (Source1) adjustable time delayU Engine stop / cool down timerV1 Voltage imbalance between phases (3 phase only)W Adjustable time delay on transfer to Emergency

(Source2)YEN Bypass transfer timers function (soft key switch in

microprocessor )

Withstand Current Ratings (WCR) for Automatic Transfer Switches�

� 3-pole vs. 4-pole transfer switches: Typically, most MCCs do not have the neutral pulled, so a 3-pole switch will suffice. If the generator neutral is bonded to theframe of the generator and pulled to the MCC to provide a single-phase connection, a 4-pole transfer switch is required to facilitate transferring the neutralfrom the Utility to the Generator connection.

� Does not include space for protection; switches must be mounted at bottom of section in order to install vertical bus above switch.� Larger sizes require special over-size enclosures. Refer to factory.

Transitions

Transitions for connecting control centers to GE transformers,low-voltage switchgear or switchboards are available andgenerally the same depth as the equipment to which theyare to be connected. Appropriate overcurrent protection forthe control center must be provided.

Minimum MCCSpace Units�

MCC EnclosureWidths (In Inches)

Switch Rating(Amps)�

Available RMS Symmetrical Amperes at 480 Volts ACWhen Used with Class J or L

Current-Limiting FusesWhen Used with Class RK-5 Fuses or

Molded-Case Circuit Breakers WCR Max. Fuse Size (Amps) WCR Max. Breaker Size (Amps)

3 24 40 100,000 50 22,000 150

3 24 80 200,000 100 22,000 150

3 24 100 200,000 125 22,000 150

3 24 150 200,000 200 42,000 400

3 24 260 200,000 350 42,000 400

3 24 400 200,000 600 50,000 400

3 24 600 200,000 750 65,000 800

6 30 800 200,000 1200 65,000 1200

6 30 1000 200,000 1200 65,000 1200

6 30 1200 200,000 1200 65,000 1200

Evolution Series E9000* Motor Control CentersStarters

D

D1

General

Combination motor control starter units consist of an externally operable circuit disconnect, either a fusible switchor circuit breaker, and a magnetic starter with an overloadrelay in the motor lines.

Unit NEMA sizes listed are based on continuous horsepowerratings. The maximum horsepower rating of each NEMA sizecontroller is reduced for long accelerating times and for joggingor plugging duty. Jogging duty is defined as 5 or more contac-tor openings or closings per minute or over 10 in a 10-minuteperiod. Plugging is rapidly stopping or reversing the motorby reversing the phase sequence of the power supplied tothe motor. Refer to the factory anytime accelerating timesexceed 10 seconds or jogging or plugging duty is required.Refer to the factory when `Design E’ motors are used, not tobe confused with Energy Policy Act (EPAC) motors.

The short-circuit interrupting rating depends on the typedisconnect furnished. Select a starter combination for whichthe interrupting rating equals or exceeds the maximumavailable fault current.

Basic combination motor starter units consist of:1. Externally operable circuit disconnect.2. Magnetic starter with a thermal-magnetic, or electronicoverload relay.

3. External overload reset operator.4. Tapped line voltage, 120-volt CPT control power or externalcontrol power.

5. Pull-apart control terminal boards through NEMA Size 5.6. Pull-apart power terminal boards through NEMA Size 2(when BT specified).

7. Extra CPT capacity for operating auxiliary relays and pilotdevices (when specified).

8. Plug-in construction through NEMA Size 5 (FVNR) starters.Bolt-in construction may require vertical bus modifications.

Basic starter units are provided in tables in this section.Starters are listed by starter function, line voltage, HP, NEMAsize, and combination short-circuit rating. Tables in this sectionalso list control power options and other options includingany additional space requirements for these options

Typical starter circuits are shown in (Section K). Starters canalso be used for lighting or resistive heat loads (Section J).

Evolution Series E9000* Motor Control CentersStarters

D2

D

Arc Flash Mitigation (AFM) Main andStarter Units

E9000 AFM units are a new offering for customers and specific applications where additional protection of personnelis essential. The AFM units were designed around loweringthe electrical shock hazards for motor control centers. TheAFM unit design includes optional IP20 devices and incidentalcontact safety barriers in an effort to prevent accidentalcontact with energized parts during maintenance.

The E9000 AFM units are designed to reduce the likelihood ofexposure to electrical shock and the potential of internal arcingfaults from occurring during maintenance. The retractablestab mechanism allows for closed-door racking of the unit,providing added protection to the electrical personnel fromthe dangers of an arc flash occurrence. The introduction of a compact NEMA contactor in these AFM units will allow aminimum of IP10 protection with optional IP20 terminal protection for starters using this contactor. The 300-LineLegacy NEMA contactor remains available with this new design. Other IP20 protection options are available in allstarter units including IP20 control power transformer fusesand pilot devices.

A safety interlock prevents customers from opening the unitdoor and racking out the stab when the unit is energized. Thevisual indicators on the front of the units provide personnelwith a clear view of the status of the stab and vertical busisolation shutter.

AFM Features:• Two-position closed-door retractable unit stabs• Automatic operation vertical bus isolation shutter• Stab and Shutter position indicators on unit doors• Padlock for racking screw and stab-breaker interlock• Optional IP20 safety features and incidental contact barriers• Stab and Door Interlock: prevents opening the unit doorwhen stab is energized.

• Stab and Unit Interlock: prevents user from taking the unitout when stab is energized, or inserting the unit into thebus when stab is extended.

• Racking Screw and Disconnect Interlock: prevents the userfrom racking the stab in/out of the unit with the disconnectin the “ON” position.

For information, please see GE publication DEA-593.

Selection TablesCircuit Breaker Type

FVNR AFM

FVR AFM

Selection TablesFused Switch Type

FVNR AFM

FVR AFM

NEMASize

Circuit BreakerType

C2000 Standard

Space Units

300-Line Standard

Space Units

1 SEL/SEP 1 1.5

2 SEL/SEP 1 1.5

3 SEL/SEP 1.5 2

4 SFL/SFP 2 2.5

5 SGL/SGP – 4

NEMASize

Circuit BreakerType

C2000 Standard

Space Units

300-Line Standard

Space Units

1 SEL/SEP 1.5 2

2 SEL/SEP 2 2.5

3 SEL/SEP 3 3.5

4 SFL/SFP 3 3.5

NEMA Size

Class RK-1, RK-5, J-TD C2000 Standard

Space Units

300-Line Standard

Space UnitsSwitch Amps Clip Amps

1 30 30 1.5 2

2 60 60 2 2.5

3 100 60 4 4.5

NEMA Size

Class RK-1, RK-5, J-TD C2000 Standard

Space Units

300-Line Standard

Space UnitsSwitch Amps Clip Amps

Documents

Motor Control Centers - Fuelled · 2017. 12. 11. · NEMA Class of Diagrams and Wiring ... E9000 MCC can be spliced onto existing 7700 Line, 8000 Line and Spectra MCC for 1200A (supplied