Safety Interlock Switches - Steven Engineering

185Banner Engineering Corp. • Minneapolis, U.S.A. • www.bannerengineering.com • Tel: 763.544.3164

Safety Interlock Switches

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Safety Interlock SwitchesSelection and Application of Safety Switches . . . . . 186

Flat Pack Style Switches . . . . . . . . . . . . . . . . . . . 191

Limit Switch Style Switches. . . . . . . . . . . . . . . . . 199

Locking Style Switches . . . . . . . . . . . . . . . . . . . . 217

Magnet Style Switches . . . . . . . . . . . . . . . . . . . . 229

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186 Banner Engineering Corp. • Minneapolis, U.S.A. • www.bannerengineering.com • Tel: 763.544.3164

Selection and Application of Safety Interlock Switches

Historically non-safety-rated proximity sensorsand mechanical limit switches have been

misapplied and used for personnel safetyapplications. These devices are not specificallydesigned for safeguarding applications. They areeasy to defeat or bypass, and prone to failuremodes which lead to potentially dangeroussituations.

Newer design and application standards haveaddressed this issue by requiring coded systemsthat cannot be easily defeated with such readilyavailable objects as tape, magnets, or metalobjects. Manufacturers have responded with newdesigns that satisfy safety use requirements.Mechanical devices with positive-openingoperation of the safety contacts have differentiatedthe design of switches intended for safety usefrom that of standard components.

Safety interlocking device application and designrequirements are addressed by several domestic,international and regional standards, including:

• ANSI B11.19, Safeguarding Requirements whenReferenced by other B11 Standards,

• ANSI/RIA R15.06, Safety Requirements forIndustrial Robots and Robot Systems, and

• ISO 14119 and EN1088, Safety of Machinery –Interlocking Devices Associated with Guards.

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Safety Interlocking

It is important that the integration of safetyinterlocks, used as part of a safety system

design, fulfill the safety requirements ofredundancy and monitoring functions in order tomaintain a high level of system integrity (see page20 for safety system performance). While safetyinterlocks are designed for safeguardingapplications, many are simple mechanical systemsthat can fail in an “on” state, under certaincircumstances. Possible mechanical and electricalfailures of these devices must be considered whenincorporating integrity into a safety system design.Possible failure modes include:

• Short circuits across the outputs,• Actuator fastener breakage, and• Physical damage to the interlocking device.

Because of their positive-opening designrequirements, a mechanical safety interlock devicemay fail with its safety contacts closed, should itshead be sheared off or removed.

To obtain a high level of safety system integrityusing safety interlock devices, it is usuallynecessary to use two devices and a safety controlsystem that continuously monitors both devicesfor concurrent operation (see dual channelmonitoring on page 21).

Installation

The physical installation of the mechanicalinterlocking devices is critical to the reliability

of the system. The application standards whichdetail the use and installation of these devices giveguidance on critical issues that affect systemintegrity. Some common problems include:

• Using the safety interlock as an end oftravel doorstop,

• Unreliable fasteners,• Improper use of mounting holes, and • Improper actuator alignment and/or doors

that do not have repeatable position,causing physical damage to the mechanicalinterlock.

Special flexible and adjustable actuators can helpin resolving some of these issues.

It is important for the designer to select the rightsafety interlock for each application. Although thesize and price of light-duty plastic devices may beattractive, a larger metal safety interlock, carryinga higher price, may be more appropriate – and inthe long run be a better value – for harsh-dutyapplications.

Use two safety interlock devices and a safety module for ahigh level of integrity.

Flexible actuator

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Safety Interlock Types

Avariety of safety interlock designs address theunique requirements of safeguarding

applications. The goals of all designs include:

• Reducing defeat potential,• Providing reliable operation of the safety outputs• Reliably monitoring the function of the device, and• Withstanding expected environmental

influences that could introduce faults.

Standard Mechanical Safety Interlocks

One of the most common types of safetyinterlock is what the international andEuropean standards call a functional

category 2 device. A functional category 2 safetyinterlock has two components: the safetyinterlocking housing and a separate, codedactuator. The actuator is usually mounted on thegate, and is aligned to a slot in the housing, whichis mounted on the structure.

Once the actuator is fullynested into the housing,

the safety contacts close,allowing the machine

to run. When thegate opens, thesafety contactsare forced openby a mechanical

action referred to aspositive opening, which

sends a stop signal to the machine. Positiveopening is required for safety application use; itensures direct mechanical action in opening thesafety contacts and does not depend on springs toperform the safety function. Even in a weldedcontact condition, the safety contacts are designedto break open – resulting in a stop signal.

Rotary and Hinged SafetyInterlocks

Rotary and hinge devicesare designed to mount on the

hinged side of an access door.They are termed functional category 1 devices bythe international and European standards systems.In effect, functional category 1 safety interlockshave one-piece construction; the actuator is anintegral part of the housing. Thesedevices have no slot or nest wheredirt or other materials can collectand cause problems. Andbecause they are usuallymounted out-of-the-way inthe machine frame, they areless likely to be exposed toairborne dirt, oil and mist, ortampering.

Guard Locking Safety Interlocks

Guard locking devices have a separateactuator, and use a solenoid system tolock the engaged actuator in place. The

solenoid not only monitors the gate for open orclosed position, but also holds the gate closed,preventing access to the machine until it is verifiedthat the machine is in a safe state. These devicescan be useful for machines that have relatively longstop times and where entering the machine duringthe process can cause damage to material (inaddition to the injury issue). The control signal thatunlocks the door likely comes from a safety-ratedstop-motion-detection system or safety timer.

The two most common locking modes for guardlocking devices are spring locking and powerlocking. Spring locking holds the gate closedwhen there is no power to the solenoid and ispreferred for personnel guarding applications

Functional Category 2Safety Interlock

Actuator andswitch are two separatecomponents

Actuator and switchare two separatecomponents

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because the locked state does not require anexternal positive signal. Spring-locking devicesmust have a means of manually overriding thelock to allow machine maintenance(lockout/tagout procedures). The override mustalso be limited to authorized personnel. Power

locking requires thesolenoid to beenergized by anexternal control devicein order to achieve thelocked state. Considerpossible solenoidfailure modes, suchas broken wires,supply voltage failureand failed solenoidcoils, before using

power-locking devices to safeguard personnel.

Magnetic Safety Interlocking

When standard mechanical safetyinterlocks do not fit application needs due

to environmental issues, size, or mechanicallimitation, magnetic safety interlocking may be anoption. Although several domestic, internationaland European standards warn against use ofsimple proximity devices for gate monitoring,specially-designed magnetic safety interlocksystems have been introduced into the market forpersonnel safeguarding application. A magneticsafety interlock has a sensor and a magneticallycoded actuator. Within the sensor are multiplemagnetically-actuated reed contacts that mustmatch up with a specifically-coded actuator, inorder for the machine to run. This magneticcoding is not only redundant in design, but alsodefends against bypass using a simple magnet.

Benefits of magnetic interlocks include theirrelatively small size, higher housing protectionrating and non-contactoperation. Because theactuator does not needto make physicalcontact with thesensor, such factors asmetal fatigue, cloggedactuator slots and closetolerance are not anissue.

Use the selection chart on the following page tolocate the appropriate Banner device for yourapplication.

Sensor CodedMagnet

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Safety Interlock Switches

Type FamilyPackage

StyleHousingMaterial

ProtectionRating

ActuatorPosition

ActuatorTypes

ContactOptions

SolenoidVoltage

StandardMechanical

QS75 & QS90 Flat Pack Plastic IP 65;

NEMA 4Top, front

& back

Straight, Flexible &Adjustable

1 N.C., 1 N.C./1 N.O.,

2 N.C., 2 N.C./1 N.O.

N/A

Specs

p. 196

CableEntry

Bottom&

Sides

p. 213BottomStandardMechanical

LS83 & LS100 Limit Plastic IP 65;

NEMA 4Top, front

& back

Straight, Flexible &Adjustable

1 N.C./1 N.O.,2 N.C.,

2 N.C./1 N.O.N/A

p. 213BottomStandardMechanical

LM40 &LS40 Limit Metal IP 65;

NEMA 4Side, front

& back

Straight &

Flexible

1 N.C./1 N.O.,2 N.C. N/A

p. 213BottomStandardMechanical LS31 Limit Plastic IP 65;

NEMA 4 N/AHinged,left,right andup, rotary

1 N.C./1 N.O.,2 N.C. N/A

p. 225Bottom

&Sides

GuardLocking LS42 Limit Plastic IP 65;

NEMA 4Top, side, front

& back

Straight &

Flexible

See page 218 & 219

24V ac/dcor

24-48V dc &

24-230V ac

p. 225Bottom

&Sides

GuardLocking QM100 Limit Metal IP 67;

NEMA 6Side, front

& back

Straight &

Flexible

*1 N.C.,1 N.0./1 N.C.,

1 N.O.

24V ac/dc,or

120V ac,or

230V ac

p. 231

Standard& CableOpposite(Mag 1only)

Magnetic Mag 1 & 2 Rectangular Plastic IP 67 NEMA 4X N/A Coded

Magnet N/A N/A

p. 231StandardMagnetic Mag 3 Cylindrical Plastic IP 67 NEMA 4X N/A Coded

Magnet N/A N/A

Safety Interlock Switch Selection Chart

* Actuator/Solenoid

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Flat Pack Style Safety Interlock Switches

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Flat Pack Style SafetyInterlock Switches

75 mm Flat Pack Style Switches . . . . . . . . . . . . . . 192

90 mm Flat Pack Style Switches . . . . . . . . . . . . . . 192

Flat Pack Style Specifications . . . . . . . . . . . . . . . 196

Flat Pack Style Accessories . . . . . . . . . . . . . . . . . 197

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Flat Pack Style Safety Interlock Switches – Model Selection

75 mm and 90 mm Series Flat Pack Style Switches• Positive opening safety contacts (IEC 60947-5-1) (not dependent upon springs)

• Mechanically-coded actuators utilize two independent operating elements to minimize intentionaltampering or defeat

• Rotating head allows actuator engagement from front or back or either of two top positions

• Choice of four standard actuators; special high extraction force actuator is available as option(see page 198)

• NEMA 4, IEC IP65 switch housing rating may be increased to NEMA 4X, IEC IP67 with additionof screw to wiring chamber door

• Insulated device (IEC 60947-5-1) on all models with plastic housings

NOTE: This symbol for a positive opening safety contact (IEC 60947-5-1) is used in theSwitching Diagrams to identify the point in actuator travel where the normally-closed safetycontact is fully open.

SI-QS75MC

11 12 11 12

6.2 (0.24)

0 (0)

11-1

2

7.2 (0.28)

21.5 (0.85)mm (in)

Engaged

Disengaged

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SI-QS75MRHC

Models Actuator TypeContact Configuration

(Actuator Engaged)Contact Configuration(Actuator Removed) Switching Diagram†

SI-QS75MRVC

SI-QS75MFC Flexible

In-Line

Horizontal Radius

Vertical Radius

SI-QS90MFD Flexible

SI-QS90MD In-Line

23 24

11 12

23 24

11 123.2 (0.13)2.4 (0.09)0 (0)

3.4 (0.13)

21.5 (0.85)mm (in)

Engaged

Disengaged

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r11

-12

23-2

4

SI-QS90MRHD

Models Actuator Type

Horizontal Radius

Contact Configuration(Actuator Engaged)

Contact Configuration(Actuator Removed) Switching Diagram†

SI-QS90MRVD Vertical Radius

SI-QS75MCHF(High Force)* In-Line

SI-QS90MDHF(High Force)* In-Line

SI-QS75 Series Safety Switches – One N.C. Contact

SI-QS90 Series Safety Switches – One N.C. and One N.O. Contact

†Contacts: Open Closed Transition

* High Force: 50 N (11.25 lbf) holding force integrated into switch

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SI-QS90MFE Flexible

SI-QS90ME In-Line

21 22

11 12

21 22

11 126.2 (0.24)

0 (0)

11-1

221

-22

7.2 (0.28)

21.5 (0.85)mm (in)

Engaged

Disengaged

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SI-QS90MRHE


Horizontal Radius



SI-QS90MRVE Vertical Radius

SI-QS90MFF Flexible

SI-QS90MF In-Line

25 26

33 34

15 16

25 26

33 34

15 163.0 (0.12)3.5 (0.14)

0 (0)

15-1

625

-26

33-3

4

5.0 (0.20)

21.5 (0.85)mm (in)

Engaged

Disengaged

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Mon

itor

SI-QS90MRHF


Horizontal Radius



SI-QS90MRVF Vertical Radius

Flat Pack Style Series Dimensions - Front View Flat Pack Style Series Dimensions - Side View

90.0 mm(3.55")

ø 5.3 mm(0.21") (2)

ø 5.5 mm(0.22") (2)

7.0 mm(0.28")

52.0 mm(2.05")

40.0 mm(1.57")

18 mm(0.71")

5.5 mm(0.22")

8.0 mm(0.31")

29.0 mm(1.15") 75.0 mm

(2.95")

Pg 11

FRONT VIEW90 mm 75 mm

33.0 mm(1.31")

Pg11(3 Places)1/2"-14 NPSMAdapter is Supplied

30.0 mm(1.18")

8.0 mm(0.31")

13.0 mm(0.52")

16.0 mm(0.64")

17.5 mm(0.70")

22.0 mm(0.87")

SI-QS90MEHF(High Force)* In-Line

SI-QS90MFHF(High Force)* In-Line

SI-QS90 Series Safety Switches – Two N.C. and One N.O. Contact

SI-QS90 Series Safety Switches – Two N.C. Contacts


* High Force: 50 N (11.25 lbf) holding force integrated into switch

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Standard Actuator Features

M5 (#10) Clearance

Snap-on Cap

SI-QS-SSAIn-line Actuator

Choose the in-line actuator for applicationssuch as sliding doors, or covers that liftstraight off, or on hinged doors with aradius of 150 mm (6"), or greater. A one-way snap-on cap is supplied to discourageunauthorized removal of the actuatormounting hardware. The actuator is die-caststainless steel.

SI-QS-HMAHorizontal Radius Actuator

Use this actuator on hinged doorswith a radius of 50 mm (2"), orgreater. Once the angle is set, theactuator is flexible in twodirections. The actuator is die-castaluminum.

SI-QS-VMAVertical Radius Actuator

Use this actuator on hinged doors with aradius of 50 mm (2"), or greater. Once theangle is set, the actuator has flexibility intwo directions. The actuator is die-castaluminum.

SI-QS-FSAFlexible Actuator

Use this actuator on hinged doorswith a radius of 150 mm (6"), orgreater. This flexible actuator isused on doors where there ismisalignment or vibration. Theactuator is die-cast aluminum.

Also available: A high-extraction-force actuator (see Accessories, page 197).

Features - Rotating Actuator Head

The actuator head may be rotated 180º to create four possible actuator engagement locations.

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20.0 mm(0.80")

40.0 mm(1.59")

52.0 mm(2.07")

Front View of Actuator

ø5.5 mm (0.22")

21.0 mm(0.83")

Top Viewof Switch and Actuator

ø5.5 (0.22")

33.0 mm(1.31")

20.0 mm(0.80")

20.0 mm(0.80")

40.0 mm(1.59")

52.0 mm(2.07")


21.0 mm(0.83")



ø5.2 (0.21")

15.0 mm(0.60")

40.0 mm(1.59")

52.0 mm(2.07")

Top Viewof Switch and Actuator 7.5 mm

(0.30")

14.0 mm(0.56")

8.0 mm(0.32")

5.6 mm(0.32")

52.0 mm(2.07")

40.0 mm(1.59")

ø5.2 (0.21")

20.0 mm(0.80")

40.0 mm(1.59")

52.0 mm(2.07")


17.0 mm(0.68")


Mounting of SI-QS-SSA In-line Actuator Mounting of SI-QS-HMA Horizontal Radius Actuator

Mounting of SI-QS-VMA Vertical Radius Actuator Mounting of SI-QS-FSA Flexible Actuator

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Flat Pack Style Safety Interlock Switches – Specifications

Contact Material

Environmental Rating NEMA 4, IEC IP65Note: Addition of a No. 3 x 1/4" screw (max) to the wiring access door increases sealing to

IEC IP67, NEMA 4X

Silver-nickel alloy

Application Notes

Maximum Switching Speed 30 operations per minute

Models with one and two contacts have three cable entry locations (bottom and two sides); models withthree contacts have two cable entry locations (two sides). All entry locations are sealed with knockouts.

To remove knockouts, thread the supplied Pg 11 to 1/2" - 14 NPT conduit adapter or optional Pg 11 cablegland into one of the threaded entry locations. The knockout will break open just before the adapter orcable gland bottoms out.

Operating Temperature -30° to +80ºC (-22° to +176ºF)

Weight

Maximum Actuator Speed 1 m/second (39"/second)

Actuator Extraction Force 10 Newtons (2.2 lbf); High Force - 50 Newtons (11.25 lbf)

Minimum ActuatorEngagement Radius

In-line actuators: 150 mm (6")Adjustable actuators: 50 mm (2") in two directionsFlexible actuators: 50 mm (2") in all directions

SI-QS75 models: 0.11 kg (0.25 lb)SI-QS90 models: 0.13 kg (0.29 lb)

Certifications

Short Circuit Protection 6 amp Slow Blow, 10 amp Fast Blow. External fusing or overload protection is recommended.

Wire Connections Screw terminals with pressure plates accept the following wire sizes –For switches with one or two contacts:Stranded and solid: 20 AWG (0.5 mm2) to 16 AWG (1.5 mm2) for one wireStranded: 20 AWG (0.5 mm2) to 18 AWG (1.0 mm2) for two wires

For switches with three contacts:Stranded and solid: 20 AWG (0.5 mm2) to 18 AWG (1.0 mm2) for one wireStranded: 20 AWG (0.5 mm2) to 18 AWG (1.0 mm2) for two wires

Cable Entry Pg 11 threaded entrance. Adapter supplied to convert Pg 11 to 1/2" - 14 NPT threaded entrance. (See Application Notes, below).

Construction Glass fiber-reinforced polyamide thermoplastic housing UL94-VO rating

European Rating Utilization categories: AC15 and DC13 (IEC 60947-5-1)Switches with 1 & 2 contact pairs:Ui = 500V ac, Ith = 10ASwitches with 3 contact pairs:Ui = 400V ac, Ith = 5A

Contact Rating 10A @ 24V ac, 10A @ 110V ac, 6A @ 230V ac6A @ 24V dc2.5 kV max. transient toleranceNEMA A300 P300

Mechanical Life 1 million operations

Flat Pack Style Safety Interlock Switch Specifications

UeV

Ie/AC-15A

Ie/DC-13A

24 10 6110 10 1230 6 .4

40-60 Hz

R

AuxiliaryDevices

LISTED

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Flat Pack Style Safety Interlock Switches – Accessories

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Model SizeUsed with

Switch ModelsFor CableDiameters Dimensions

SI-QS-CG11 Pg 11 Plastic All 5.0 to 10.0 mm(0.20" to 0.40")

34 mm(1.3")

Pg 1125 mm(1.0")

Model SizeUsed with

Switch ModelsThread

Conversion Dimensions

SI-QS-11

1/2" - 14NPT

PlasticAll Pg 11 to

1/2"- 14 NPT

1/2"-14 NPTInternal Thread25 mm

(1.0")

26 mm(1.02")

Pg11

O-ring

Model Application

For particularly heavy or large doors. Adjustable from 50 to 100 Newtons(force). Used only for switches with in-line actuator SI-QS-SSA.

Note: One is supplied with each switch.

Conduit Adapters

Cable Glands

SI-QS-100

Model DescriptionUsed with

Switch Models Thread

SI-PL1T-RSI-PL1A-RSI-PL1T-GSI-PL1A-G

24V ac/dc, Red120V ac, Red24V ac/dc, Green120V ac, Green

All

Dimensions

Pg 11

High-Extraction-Force Actuator

Indicator Lamps

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Flat Pack Style Safety Interlock Switches – Accessories

Model ApplicationType

In-line

SI-QS-SSAFor doors or covers with a radius of 150 mm (6"), or greater. A one-way snap-oncap is supplied to discourage unauthorized removal of the actuator mountinghardware.

Horizontal Radius

SI-QS-HMA For hinged doors with a radius of 50 mm (2") or greater.

Vertical Radius

SI-QS-VMA For hinged doors with a radius of 50 mm (2") or greater.

Flexible

SI-QS-FSA For doors or covers where alignment is difficult to maintain. Flexes in all directions.

WARNING!Spare actuators must NEVER be used to bypass or otherwise defeat the protective function of asafety switch. To do so may create an unsafe situation which could lead to serious injury or death.!

Replacement Actuators

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Limit Switch Style Safety Interlock Switches

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Limit Switch Style SafetyInterlock Switches

83 mm and 100 mm Limit Switch Style SwitchesSI-LS83/100 Series . . . . . . . . . . . . . . . . . . . . . 200

40 mm Limit Switch Style SwitchesSI-LM40 Series with In-line Actuators . . . . . . . . . 204SI-LM40 Series with FlexibleIn-Line Actuator . . . . . . . . . . . . . . . . . . . . . . . 206

31 mm Limit Switch Style SwitchesSI-LS31R Series with Rotary Hinge Actuator . . . . 208SI-LS31H Series with Hinged Lever Actuator . . . . 210

Limit Switch Style Specifications . . . . . . . . . . . . . 213

Limit Switch Style Accessories. . . . . . . . . . . . . . . 214

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Limit Switch Style Safety Interlock Switches – 83 mm and 100 mm Model Selection

SI-LS83/100 Series Switches• Positive opening safety contacts (IEC 60947-5-1) (not dependent upon springs)• Limit switch design (EN 50047)• Mechanically-coded actuators utilize two independent operating elements to minimize

intentional tampering or defeat• Rotating head allows actuator engagement from four sides or four top positions; no tools

are required to rotate head• Low-profile design for limited space requirements; only 30.5 mm (1.3") depth• Tough, glass-reinforced thermoplastic housing; metal actuator• Choice of two in-line actuators, two adjustable radius actuators or a flexible actuator

• Insulated device (IEC 60947-5-1)

NOTE: This symbol for a positive opening safety contact (IEC 60947-5-1) is used in theSwitching Diagrams to identify the point in actuator travel where the normally-closedsafety contact is fully open.


SI-LS100SF

25 26

33 34

15 16

25 26

33 34

15 16

7.6 (0.30)8.3 (0.33)

0 (0)

15-1

625

-26

33-3

4

8.8 (0.35)

21.5 (0.85)mm (in)

Engaged

Disengaged

Safe

tySa

fety

Mon

itor

SI-LS100SRAF

SI-LS100MRHF

SI-LS100MRVF

SI-LS100MRFF

Actuator TypeContact Configuration(Actuator Engaged) Switching Diagram†Model Number

Straight In-line

Horizontal

Vertical

Flexible

Right-angle In-line

Contact Configuration(Actuator Removed)

SI-LS100 Series Safety Switches – Two N.C. and One N.O. Contact

Right-angle In-line

Model Number Actuator TypeContact Configuration(Actuator Removed)

Contact Configuration(Actuator Engaged) Switching Diagram†

SI-LS83SD Straight In-line

23 24

11 12

23 24

11 12

4.3 (0.17)4 (0.16)0 (0)

4.4 (0.18)

21.5 (0.85)mm (in)

Engaged

Disengaged

Safe

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-12

23-2

4

SI-LS83SRAD

SI-LS83MRHD Horizontal

SI-LS83MRVD Vertical

SI-LS83MRFD Flexible

SI-LS83 Series Safety Switches – One N.C. and One N.O. Contact

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SI-LS100 Series Safety Interlock Switch Dimensions SI-LS83 Series Safety Interlock Switch Dimensions


Right-angle In-line

Model Number Actuator TypeContact Configuration(Actuator Removed)

Contact Configuration(Actuator Engaged) Switching Diagram†

SI-LS83SE Straight In-line

21 22

11 12

21 22

11 124.5 (0.18)4.2 (0.17)0 (0)

21.5 (0.85)mm (in)

Engaged

Disengaged

Safe

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-12

21-2

2

SI-LS83SRAE

SI-LS83MRHE Horizontal

SI-LS83MRVE Vertical

SI-LS83MRFE Flexible

SI-LS83 Series Safety Switches – Two N.C. Contacts

M5Clearance

16.0 mm(0.64")

30.5 mm(1.21")

4.0 mm(0.16")

8.0 mm(0.32")

38.0 mm(1.50")

62.0 mm(2.46")

100.0 mm(3.98")

30.0 mm(1.19")

PG 11* Thread20 mm(0.79")

22 mm(0.87")

8.0 mm(0.31")

2.0 mm(0.08")

5.5 mm(0.22")

38.0 mm(1.50")

45.0 mm(1.79")

30.0 mm(1.19")

PG 11* Thread

M5Clearance

22 mm(0.87")

27.0 mm(1.07")

83.0 mm(3.30")

11.0 mm(0.44")

23 mm(0.91")

8.0 mm(0.31")

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Standard Actuator Features

SI-QS-SSA-2/-3In-line Actuator

Choose the in-line actuator for applicationssuch as sliding doors, or covers that liftstraight off, or on hinged doors with aradius of 150 mm (6"), or greater. Modelsavailable for straight or right anglemounting. These actuators are stampedstainless steel.

SI-QS-HMAHorizontal Radius Actuator

Use this actuator on hinged doorswith a radius of 50 mm (2"), orgreater. Once the angle is set, theactuator is flexible in twodirections. The actuator is die-castaluminum.

SI-QS-VMAVertical Radius Actuator

Use this actuator on hinged doors with aradius of 50 mm (2"), or greater. Once theangle is set, the actuator has flexibility intwo directions. The actuator is die-castaluminum.

SI-QS-FSAFlexible Actuator

Use this actuator on hinged doorswith a radius of 150 mm (6"), orgreater. This flexible actuator isused on doors where there ismisalignment or vibration. Theactuator is die-cast aluminum.

SI-QS-SSA-3 Right-Angle In-line Actuator SI-QS-SSA-2 Straight In-line Actuator

8.5 mm(0.34")

12.5 mm(0.50")6.3 mm

(0.25")

M4 (#8) ClearanceM4 (#8) Clearance

32.0 mm(1.27")

19.0 mm(0.76")

21.0 mm(0.83")

30.0 mm(1.19")

6.5 mm(0.26")

11.3 mm(0.45")

5.0 mm(0.20")

4.3 mm(0.17")

30.0 mm(1.19")

19.0 mm(0.76")

21.0 mm(0.83")

30.0 mm(1.19")

M4 (#8) Clearance

6.5 mm(0.26")

11.3 mm(0.45")

5.0 mm(0.20")


Top View of Switch and Actuator



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ø5.5 mm (0.22")

20.0 mm(0.80")

40.0 mm(1.57")

52.0 mm(2.07")

21.0 mm(0.83")

SI-QS-HMA Horizontal Radius Actuator SI-QS-VMA Vertical Radius Actuator

SI-QS-FSA Flexible Actuator

20.0 mm(0.80")

33.0 mm(1.31")

ø5.5 mm (0.22")

20.0 mm(0.80")

40.0 mm(1.57")

52.0 mm(2.07")

21.0 mm(0.83")

17.0 mm(0.68")

ø5.5 mm (0.22")

20.0 mm(0.80")

40.0 mm(1.57")

52.0 mm(2.07")







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Limit Switch Style Safety Interlock Switches – 40 mm Model Selection

SI-LM40 Series Switches with In-Line Actuators• Positive opening safety contacts (IEC 60947-5-1) (not dependent upon springs)

• Standard limit switch metal housing (EN 50041)

• In-line and flexible actuator models

• Protective Earth Terminal (IEC 60947-1)


SI-LM40MKHFD Flexible

SI-LM40MKHD In-line

Models

Metal

ActuatorType


Contact Configuration(Actuator Removed) Switching Diagram†Housing

23 24

11 12

23 24

11 1210 (0.39)

0 (0)

12 (0.47)

40 (1.58)mm (in)

Engaged

Disengaged11

-12

23-2

4Sa

fety

Mon

itor

SI-LM40MKHFE Flexible

SI-LM40MKHE In-line

21 22

11 12

21 22

11 1210 (0.39)

0 (0)

12 (0.47)

40 (1.58)mm (")

Engaged

Disengaged

11-1

223

-24

Safe

tySa

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Metal


SI-LM40 Series Safety Switches

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116.0 mm(4.56")

60.0 mm(2.36")

2.0 mm(0.08")

74.5 mm(2.93")

36.8 mm(1.45")

40.0 mm(1.56")

37.5 mm(1.48")

33.0 mm(1.30")

30.0 mm(1.18")

5.2 mm(0.20")

(4)

32.0 mm(1.26")

12.0 mm(0.47")

80.0 mm(3.13")

Pg 13.51/2"-14 NPT

Adapter is Supplied

20.0 mm(0.79")

7.5 mm(0.30")

15 mm(0.59")

80.0 mm(3.13")

ø 4.8 mm(2 Holes)

40 mm(1.6")

29 mm(1.1")

CL

50 mm(2.0")

81 mm(3.2")

41 mm(1.6")

ø 5.5 mm(0.22")

SI-QM-SSA In-Line Actuator Dimensions SI-QM-SMFA Flexible Actuator Dimensions

SI-LM40MKH.. Series Safety Interlock Switch Dimensions

90º

Features - Rotating Actuator Head and Flexible In-Line Actuator Flange Orientation

The actuator head may be rotated in 90º increments. Note regarding the flexible actuator:The flexible actuator mounting flange may be rotated 90° withrespect to the actuator position. To rotate, push the flange in thedirection of actuation, turn the flange either direction, and releaseto lock the flange in the new position.

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SI-LM40 Series Trumpet Style Switches with Flexible In-Line Actuator

• Positive opening safety contacts (IEC 60947-5-1) (not dependent upon springs)

• Standard limit switch design

• In-line actuator; flexes in all directions

• Metal housing

• Spring loaded actuator base

• Protective Earth Terminal (IEC 60947-1) on models with metal housings


SI-LM40MKVD Flexible In-line

23 24

11 12

23 24

11 12

3 (0.12)1 (0.04)*0 (0)

7 (0.28)

38 (1.5)mm (in)

Engaged

Disengaged

11-1

223

-24

Safe

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SI-LM40MKVE

Models Actuator TypeContact Configuration

(Actuator Engaged)Contact Configuration(Actuator Removed) Switching Diagram†


*Please note that only 1 mm of movement will open the closed contact.

Flexible In-line

21 22

11 12

21 22

11 123 (0.12)

0 (0)

7 (0.28)

38 (1.5)mm (in)

Engaged

Disengaged

11-1

221

-22

Safe

tySa

fety

SI-LM40 Series Safety Switches with Flexible In-Line Actuator

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60 mm(2.36")

24 mm(.95")

14.5 mm(0.57")

2 mm(0.08")

74.5 mm(2.93")

17.5 mm(0.69")

40.0 mm(1.56")

37.5 mm(1.48")

33.0 mm(1.30")

26.0 mm(1.02")

M4 Thread(4 Holes)

26.0 mm(1.02")

64.0 mm(2.52")

35 mm(1.38")

30.0 mm(1.18")

5.2 mm(0.20")

(4)

Pg 13.51/2"-14 NPT

Adapter is Supplied

Slots foradjustment,only

(see Note)

SI-LM40.. Series Trumpet Style Safety Interlock Switch Dimensions

90°

Features - Rotating Actuator Head and Flexible In-Line Actuator Flange Orientation

The actuator head may be rotated in 90º increments.

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SI-LS31R Series Switches with Rotary Hinge Actuator• Positive opening safety contacts (IEC 60947-5-1) (not dependent upon springs)

• Limit switch design (EN 50047)

• Rotating shaft connects directly to door hinge

• Glass-reinforced thermoplastic switch housing with plated steel actuator

• Actuator head rotatable in 90 degree increments

• Insulated device (IEC 60947-5-1) on all models with plastic housings


SI-LS31RTD Rotary Shaft

23 24

1211

0º/360º

23 24

1211

>45º30º10º0º

45º

315º

350º330º

Safe

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11-1

223

-24


Contact Configuration(Axle in home position = 0º)

Contact Configuration(Axle Rotated 45º in

either direction) Switching Diagram†


SI-LS31RTE Rotary Shaft

21 22

1211

0º/360º

21 22

1211

>45º

30º10º0º

45º

350º330º

Safe

tySa

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360º

11-1

223

-24

SI-LS31R Series Safety Switches with Rotary Hinge Actuator

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ø 4.2 mm(0.17") (2)

Pg 111/2"-14 NPT

Adapter is supplied

22.0 mm(0.87")

4.0 mm(0.16")

62.0 mm(2.44")

13.0 mm(0.51")

ø 8.2 mm (0.32")

10.0 mm(0.39")

13 mm(0.51")

20 mm(0.79")

M3

46 mm(1.81")

20.0 mm(0.79")

31.0 mm(1.22")

8.0 mm(0.31")

84.0 mm(3.31")

30.5 mm(1.20")

ø 12.0 mm(0.47")

ø 3.5 mm(0.14")

Slot for openingcover to wiring chamber

(Use flat-blade screwdriverand twist to open).

SI-LS31R Series Safety Interlock Switch Dimensions

SI-LS31R Series Safety Interlock Switch Installation

Loosen four screws to rotate actuator head toany of four 90° positions.

The closed contact (11-12) fully opens (i.e.positive break occurs) within ±30º of theneutral shaft position.

The outside diameter of the axle is 12.0 mm (0.47").

The inside diameter of the axle is8.2 mm (0.32").

The axle is fastened to the hinge mechanismusing a drift pin.

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SI-LS31H Series Switches with Hinged Lever Actuator• Positive opening safety contacts (IEC 60947-5-1) (not dependent upon springs)• Limit switch design (EN 50047)

• For use on doors or flaps

• Glass-reinforced thermoplastic switch housing with plated steel actuator

• Actuator head rotatable in 90 degree increments



SI-LS31HGDVertical Hinged

Lever ±90º

23 24

11 12

0º

23 24

11 12

0º

90º90º

±8º±5º0º

±10º

±90º

11-1

223

-24

Safe

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SI-LS31HGEVertical Hinged

Lever ±90º

21 22

11 12

0º

21 22

11 12

0º

90º90º

±8º±5º0º

±90º

11-1

221

-22

Safe

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Contact Configuration(Lever in normal

position)Contact Configuration

(Lever rotated) Switching Diagram†


SI-LS31H Series Safety Switches with Hinged Lever Actuator

SI-LS31HGLDSI-LS3IHGD

SI-LS31HGRD

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SI-LS31HGRDRight-hand

Hinged Lever 180°

23 24

11 12

0º

23 24

11 12

180º

0º 8º5º0º

10º

180º

11-1

223

-24

Safe

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SI-LS31HGRERight-hand

Hinged Lever 180°

SI-LS31HGLDLeft-hand

Hinged Lever 180º

23 24

11 12

0º

21 22

11 12

0º

23 24

11 12

180º

0º

21 22

11 12

180º

0º

8º5º0º

10º

180º

11-1

223

-24

Safe

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8º5º0º

180º

11-1

221

-22

Safe

tySa

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Contact Configuration(Lever in normal

position)Contact Configuration

(Lever rotated) Switching Diagram†

SI-LS31HGLELeft-hand

Hinged Lever 180º

21 22

11 12

0º

21 22

11 12

180º

0º 8º5º0º

180º

11-1

221

-22

Safe

tySa

fety

SI-LS31H Series Safety Switches with Hinged Lever Actuator

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22.0 mm(0.87")

4.0 mm(0.16")

Pg 111/2"-14 NPT

Adapter is Supplied

62.0 mm(2.44")

20.0 mm(0.79")5.1 mm

(0.20")

SI-LS31HGRD

SI-LS31HGLD

20.0 mm(0.79")

31.0 mm(1.22")

8.0 mm(0.31")

ø 4.2 mm(0.17")(2)

30.5 mm(1.20")

70.0 mm(2.76")

10.0 mm(0.39")

2.5 mm(0.10")

45 mm(1.77")

93.5 mm(3.68")Slot for opening

cover to wiring chamber(Use flat-blade screwdriver

and twist to open).

22.0 mm(0.87")

4.0 mm(0.16")

Pg 111/2"-14 NPT

Adapter is Supplied

62.0 mm(2.44")

160.0 mm(8.30")

20.0 mm(0.79")

5.1 mm(0.20")

20.0 mm(0.79")

31.0 mm(1.22")

8.0 mm(0.31")

ø 4.2 mm(0.17") (2)

30.5 mm(1.20")

70.0 mm(2.76")

10.0 mm(0.39")

2.5 mm(0.10")

45.0 mm(1.77")Slot for opening

cover to wiring chamber(Use flat-blade screwdriver

and twist to open).

SI-LS31HGRD/HGRE and HGLD/HGLE Safety Interlock Switch Dimensions

SI-LS31HGD/HGE Safety Interlock Switch Dimensions

Features - Rotating Actuator Head

Actuator head may be rotated in 90°increments

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Limit Switch Style Safety Interlock Switches – Specifications

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Mechanical Life

Contact Material

Environmental Rating NEMA 4, IEC IP65

Silver-nickel alloy

European Rating

Maximum Switching Speed SI-LM40MH.., SI-LS31H and SI-LS31R models: 50 operations per minuteSI-LS83 and SI-LS100 models: 30 operations per minuteSI-LM40MKV models: 10 operations per minute

Utilization categories: AC15 and DC13Switches with 1 & 2 contact pairs:Ui = 500V ac, Ith = 10ASwitches with 3 contact pairs:Ui = 400V ac, Ith = 5A

Operating Temperature -30° to +80ºC (-22° to +176ºF)

Weight

Maximum Actuator Speed In-line actuators: 1.5 m/second (5'/second)Flexible In-line actuators: 0.5/second (20"/second)

SI-LS31H and SI-LS31R models: 0.09 kg (0.20 lb)SI-LM40MKV models: 0.31 kg (0.68 lb)SI-LM40MKH.. models: 0.34 kg (0.75 lb)SI-LS83 models: 0.12 kg (0.26 lb)SI-LS100 models: 0.13 kg (0.29 lb)

Certifications


Wire Connections Screw terminals with pressure plates accept the following wire sizes –Stranded and solid: 20 AWG (0.5 mm2) to 16 AWG (1.5 mm2) for one wireStranded: 20 AWG (0.5 mm2) to 18 AWG (1.0 mm2) for two wires

Cable Entry 40 mm switches: Pg 13.5 threaded entranceAdapter supplied to convert from Pg 13.5 to 1/2" - 14 NPT threaded entrance

All other switches: Pg 11 threaded entranceAdapter supplied to convert from Pg 11 to 1/2" - 14 NPT threaded entrance

Construction Models with plastic switch housing: Glass fiber-reinforced thermoplastic UL94-VO ratingModels with metal housing: Aluminum alloy die cast

Limit Switch Style Safety Interlock Switch Specifications

1 million operations (exception: 25,000 operations for SI-LM40MKV models)

40-60 HzUeV

Ie/AC-15A

Ie/DC-13A

24 10 6110 10 1230 6 .4


In-line actuators for 40 mm switches: 800 mm (32")In-line actuators for 31 mm switches: 400 mm (16")Flexible actuators for 40 mm switches: 150 mm (6")

Required Actuation Force In-line type actuators: 10 N (2.2 lbf); SI-LM40MKV models: 20 N (4.4 lbf)Axle type hinge actuators: 10 N cm (0.9 lbf in)Lever type hinge actuators: 15 N cm (1.3 lbf in)

Contact Rating 10A @ 24V ac, 10A @ 110V ac, 6A @ 230V ac6A @ 24V dc2.5 kV max. transient toleranceNEMA A300 P300

R

AuxiliaryDevices

LISTED

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Limit Switch Style Safety Interlock Switches – Accessories

Model SizeUsed with


SI-QS-CG11 Pg 11Plastic

31 mm, 83 mmand 100 mm limit switches with plastic

housing

5.0 to 10.0 mm(0.20" to 0.40")

34 mm(1.3")

Pg 1125 mm(1.0")

SI-QS-CG13 Pg 13.5Plastic

40 mm limitswitches with

plastic housing

6.0 to 12.0 mm(0.24" to 0.47")

33 mm(1.3")

Pg 13.5 27 mm(1.1")

SI-QM-CG13 Pg 13.5Metal

40 mm switcheswith metalhousing

5.0 to 12.0 mm(0.20" to 0.47")

32 mm(1.3")

25 mm(1.0")Pg 13.5

Cable Glands

Note: One conduit adapter is supplied with each switch.

Pg 13.5 to 1/2"- 14 NPSM

SI-QS-13

1/2" - 14NPT

Plastic

40 mm limitswitches with

plastic housing

Pg 13.5 to 1/2"- 14 NPT

Model SizeUsed with

Switch ModelsThread


SI-QS-11

1/2" - 14NPT

Plastic

31 mm, 83 mm and 100 mm limit switches with plastic

housing

Pg 11 to 1/2"- 14 NPT


(1.0")

26 mm(1.02")

Pg11

O-ring

25.0 mm(0.98")

O-ring

Pg 13.5

1/2"-14 NPTInternal Thread

26.2 mm(1.03")

SI-QM-13

1/2" - 14NPTMetal

40 mm switcheswith metalhousing

Pg 13.5 to 1/2"- 14 NPT


(0.9")

27 mm(1.1")

Pg 13.5

O-ring

Conduit Adapters

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Limit Switch Style Safety Interlock Switches – Accessories

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ModelUsed with

Switch ModelsType

Flexible In-line Metal

SI-QM-90A SI-LM40MKVDSI-LM40MKVE


SI-QM-SMFA

All40 mm switches

except forSI-LM40MKVDSI-LM40MKVE

Vertical Radius

SI-QS-VMA SI-LS83 andSI-LS100 models

Flexible

SI-QS-FSA SI-LS83 andSI-LS100 models

Application

For doors or covers where alignment is difficult tomaintain. Flexes in all directions. Minimum engagementradius for hinged closures is 150 mm (6").

For doors or covers where alignment is difficult tomaintain. Flexes in all directions. Minimumengagement radius for hinged closures is 150 mm (6").

For hinged closures with a radius of 50 mm (2"), orgreater. Once the actuator angle is set, it is flexible intwo directions. Actuator position is adjustable in oneorientation, as shown.


In-line Metal

SI-QM-SSA

All40 mm switches

except forSI-LM40MKVDSI-LM40MKVE

For doors or covers with accurate alignment, such assliding doors. Minimum engagement radius for hinged closures is 400 mm (16").

In-line

SI-QS-SSA-2 SI-LS83 andSI-LS100 models

Horizontal Radius

SI-QS-HMA SI-LS83 andSI-LS100 models

For doors or covers with accurate alignment, such assliding doors. Minimum engagement radius for hingedclosures is 150 mm (16")

For hinged closures with a radius of 50 mm (2"), orgreater. Actuator position is adjustable in one orientation,as shown. Once the actuator angle is set, it is flexible intwo directions.

In-line

SI-QS-SSA-3 SI-LS83 andSI-LS100 models

For doors or covers with accurate alignment, such assliding doors. Right-angle mounting flange. Minimumengagement radius for hinged closures is 150 mm (16").


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Limit Switch Style Safety Interlock Switches

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Locking Style Safety Interlock Switches

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SI-LS42 Locking Style Switches . . . . . . . . . . . . . . 216

SI-QM100 Locking Style Switches . . . . . . . . . . . . . 222

Locking Style Specifications . . . . . . . . . . . . . . . . 225

Locking Style Accessories . . . . . . . . . . . . . . . . . . 226

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Locking Style Safety Interlock Switches – 42 mm Model Selection

SI-LS42 Series Switches• Positive opening safety contacts (IEC 60947-5-1) (not dependent upon springs)


• Choice of two locking mechanism types:- Spring lock with energized solenoid release- Energized solenoid lock with spring unlock

• Two solenoid voltages available:- 24V ac/dc- 24 to 48V dc or 24 to 230V ac

• Choose either of two stainless steel actuator types:- Rigid in-line- Flexible in-line

• Actuator head rotatable in 90° increments and can be positioned for either horizontal orvertical actuation

• Choice of three switching contact configurations (with actuator engaged):- 1 normally-open plus 1 normally-closed- 2 normally-closed- 2 normally-closed plus 1 normally-open


RigidIn-line

ActuatorType

SI-LS42DMSG 24V ac/dc

13 14

21 22

13 14

21 22 0 (0)

11.3 (0.45)12.5 (0.49)14.7 (0.58)

41 (1.61)mm (in)

Engaged

Disengaged

21-2

213

-14

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24V ac/dc

24-48V dc24-230V ac

SI-LS42DMSGF

SI-LS42UMSG

ModelsSolenoidVoltage

Contact Configuration(Actuator Engaged

and Locked)

Contact Configuration(Actuator Unlocked

and Removed) Switching Diagram†

SI-LS42UMSGF24-48V dc24-230V ac

FlexibleIn-line

RigidIn-line

SI-LS42DMSH 24V ac/dc

21 22

11 12

21 22

11 12 0 (0)

11.3 (0.45)

14.7 (0.58)

41 (1.61)mm (in)

Engaged

Disengaged

11-1

221

-22

Safe

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24V ac/dc

24-48V dc24-230V ac

SI-LS42DMSHF

SI-LS42UMSH

FlexibleIn-line

SI-LS42UMSHF24-48V dc24-230V ac

Solenoid MonitorContacts


Actuator Contacts Actuator Contacts

43 44

31 32

E1 E2

43 44

31 32

E1 E2




43 44

31 32

E1 E2

43 44

31 32

E1 E2


SI-LS42 Series Safety Switches with Spring Lock and Solenoid Unlock

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RigidIn-line

ActuatorType

SI-LS42DMSI 24V ac/dc

21 22

31 32

13 14

21 22

31 32

13 14

0 (0)

11.3 (0.45)12.5 (0.49)14.7 (0.58)

41 (1.61)mm (in)

Engaged

Disengaged

31-3

2

13-1

4

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21-2

2Sa

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24V ac/dc

24-48V dc24-230V ac

SI-LS42DMSIF

SI-LS42UMSI

FlexibleIn-line



and Locked)



SI-LS42UMSIF24-48V dc24-230V ac




41 42

E1 E2

41 42

E1 E2

SI-LS42 Series Safety Switches with Spring Lock and Solenoid Unlock

RigidIn-line

RigidIn-line

ActuatorType

SI-LS42DMMH

SI-LS42DMMG 24V ac/dc

13 14

21 22

13 14

21 22 0 (0)

11.3 (0.45)12.5 (0.49)14.7 (0.58)

41 (1.61)mm (in)

Engaged

Disengaged

21-2

213

-14

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21 22

11 12

21 22

11 12 0 (0)

11.3 (0.45)

14.7 (0.58)

41 (1.61)mm (in)

Engaged

Disengaged

11-1

221

-22

Safe

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24V ac/dc

24V ac/dc

24-48V dc24-230V ac

24-48V dc24-230V ac

SI-LS42DMMGF

SI-LS42UMMG

SI-LS42DMMHF

SI-LS42UMMH

FlexibleIn-line



and Locked)



SI-LS42UMMGF24-48V dc24-230V ac

FlexibleIn-line

SI-LS42UMMHF24-48V dc24-230V ac

RigidIn-line

SI-LS42DMMI 24V ac/dc

21 22

31 32

13 14

21 22

31 32

13 14

0 (0)

11.3 (0.45)12.5 (0.49)14.7 (0.58)

41 (1.61)mm (in)

Engaged

Disengaged

31-3

2

13-1

4

Safe

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Mon

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21-2

2Sa

fety

24V ac/dc

24-48V dc24-230V ac

SI-LS42DMMIF

SI-LS42UMMI

FlexibleIn-line

SI-LS42UMMIF24-48V dc24-230V ac





43 44

31 32

E1 E2

43 44

31 32

E1 E2




43 44

31 32

E1 E2

43 44

31 32

E1 E2




41 42

E1 E2

41 42

E1 E2

SI-LS42 Series Safety Switches with Solenoid Lock and Spring Unlock

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SI-QM-SSA Features - Rigid In-Line Actuator

SI-QM-SMFA Features - Flexible In-Line Actuator Flange Orientation

20.0 mm(0.79")

7.5 mm(0.30")

15 mm(0.59")

80.0 mm(3.13")

ø 4.8 mm(2 Holes)

40 mm(1.6")

29 mm(1.1")

CL

50 mm(2.0")

81 mm(3.2")

41 mm(1.6")

ø 5.5 mm(0.22")

400 mm (16") minimum actuator engagement radius

150 mm (6") minimum actuator engagement radius Note regarding the flexible actuator:The flexible actuator mounting flange may be rotated 90° withrespect to the actuator position. To rotate, push the flange in thedirection of actuation, turn the flange either direction, and releaseto lock the flange in the new position.

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42 mm Locking Style Switch Dimensions

40-46 mm(1.6-1.8")

Pg13.5

45.0 mm(1.77")

37.5 mm(1.48")

15.0 mm (0.59")

*Found only on spring lock/solenoid unlock models.

19.5 mm(0.76")

29.0 mm(1.14")

29.0 mm(1.14")

30-40 mm(1.18"-1.58")

51.0 mm(2.00")

21.0 mm(0.83")

5.0 mm(0.20")

135.0 mm(5.32")

170.0 mm(6.70")

66.0 mm ± 10(2.60" ± 0.4")

ø 5.3 mm(0.21")

2.0 mm(0.08")

32.0 mm(1.26")

124.0 mm(4.89")

184 mm(7.25")

UnlockingMechanism*

SecurityScrew*

5.0 mm(0.20") 30.0 mm

(1.18")42.5 mm(1.67")

NOTE:See page 223 for actuator dimensions

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SI-QM100 Series Switches• Positive opening safety contacts (IEC 60947-5-1) (not dependent upon springs)

• Protective Earth Terminal (IEC 60947-1)

• Actuators are keyed to discourage intentional tampering or defeat

• Choice of two locking mechanism types:- Spring lock with energized solenoid unlock- Energized solenoid lock with spring unlock

• Both types are available with choice of 24V dc, 120V ac, or 230V ac solenoid operatingvoltage

• Actuator head rotatable in 90° increments

• Monitor contacts for both switching contact and solenoid status

• Standard mounting hole pattern (EN 50041)


SI-QM100DMSG 24V dc

13 14

21 22

13 14

21 220 (0)

12 (0.47)13 (0.51)14 (0.55)

41 (1.61)mm (in)

Engaged

Disengaged

21-2

213

-14

Safe

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SI-QM100DMMG 24V dc



and Locked)



SpringLock

SolenoidUnlock

SolenoidLock

SpringUnlock

ActuatorType

SI-QM100BMMG

SI-QM100AMMG

230V ac

120V ac

230V ac

120V ac

SI-QM100BMSG

SI-QM100AMSG


43 44

31 32

Switching Contacts


43 44

31 32

Switching Contacts


SI-QM100 Series Safety Switches

Spring Lock/Solenoid Unlock Model

Solenoid Lock/Spring Unlock Model

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Important Note:Be certain that the actuator is fully engaged before removing theactuator head screws during the rotation process.

Actuator Features - head may be rotated in 90° increments.

SI-QM-SSA Rigid In-Line Actuator Dimensions

SI-QM-SMFA Flexible In-Line Actuator Dimensions

20.0 mm(0.79")

7.5 mm(0.30")

15 mm(0.59")

80.0 mm(3.13")

ø 4.8 mm(2 Holes)

40 mm(1.6")

29 mm(1.1")

CL

50 mm(2.0")

81 mm(3.2")

41 mm(1.6")

ø 5.5 mm(0.22")

400 mm (16") minimum actuator engagement radius

150 mm (6") minimum actuator engagement radius Note regarding the flexible actuator:The flexible actuator mounting flange may be rotated 90° withrespect to the actuator position. To rotate, push the flange in thedirection of actuation, turn the flange either direction, and releaseto lock the flange in the new position.

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5.2 mm(0.20")

34 mm(1.3")

100.0 mm(3.94")

41.3 mm(1.63") 5.2 mm

(0.20") (3)

30.0 mm(1.18")

8.0 mm(0.31") (2)

2.0 mm(0.08")

6.5 mm(0.26")

60.0 mm(2.36")

36.8 mm(1.45")

3.0 mm(0.12")

90.0 mm(3.54")

45.0 mm(1.77")

20.0 mm(0.79")

17.5 mm(0.69")

9.8 mm(0.39")

≥ 80 mm(3.1")

20.0 mm(0.79")

30.0 mm(1.18")

Pg 13.5

ø 4.8 mm (2)

22.0 mm(0.87")

2.5 mm(0.10")

SI-QM100..MMG Series Safety Interlock Switch Dimensions

5.2 mm(0.20")

47.0 mm(1.85") 34 mm

(1.3")

100.0 mm(3.94")

41.3 mm(1.63") 5.2 mm

(0.20") (3)

30.0 mm(1.18")

8.0 mm(0.31")

(2)

2.0 mm(0.08")

6.5 mm(0.26")

60.0 mm(2.36")

36.8 mm(1.45")

3.0 mm(0.12")

90.0 mm(3.54")

29.0 mm(1.14")

49.0 mm(1.93")

45.0 mm(1.77")

20.0 mm(0.79")

17.5 mm(0.69")

9.8 mm(0.39")

50.0 mm(1.97")

≥ 80 mm(3.1")

20.0 mm(0.79")

30.0 mm(1.18")

Access toManual

Release(see text)

Pg 13.51/2"-14 NPT

Adapter is Supplied

30.0 mm(1.18")

ø 4.8 mm (2)

22.0 mm(0.87")

2.5 mm(0.10")

SI-QM100..MSG Series Safety Interlock Switch Dimensions

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Locking Style Safety Interlock Switches – Specifications

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Locking Style Safety Interlock Switch Specifications

European Rating

Environmental Rating NEMA 6, IEC IP67

Utilization categories: AC15 and DC13 (IEC 90497-5-1)Switches with 1 & 2 contact pairs:Ui = 250V acIth = 10A

Application Notes

Contact Material Silver-nickel alloy

When using a model with solenoid locking, the lock mechanism will disengage upon solenoid power failure

Operating Temperature SI-QM100 models: -30° to +60°C (-22° to +140°F)SI-LS42 models: -30° to +70°C (-22° to +158°F)

Weight

Solenoid Power Consumption SI-QM100 models: 5.2WSI-LS42 models: 1.1 VA/Inrush 56 VA (0.2 sec)

Actuator Extraction Force 1000 Newtons (220 lbf) when locked


In-line actuators: 400 mm (16")Flexible actuators: 150 mm (6")

SI-QM100 models: 0.81 kg (1.79 lbs)SI-LS42 models: 0.3 kg (0.66 lbs)

Certifications


Wire Connections SI-QM100 models: Screw terminals with pressure plates except the following wire sizes –16 AWG (1.5 mm2) max. solid; 14 AWG (2.5 mm2) max. stranded, 18 AWG (1 mm2) when using all 11 terminals

SI-LS42 models: 10 cage clamp elements1.5 mm stranded max. / 16 AWG

Cable Entry Pg 13.5 threaded entrance. Adapter supplied to convert to Pg 13.5 to 1/2 - 14 NPT threaded entrance.

Construction SI-QM100 models: Aluminum die-castSI-LS42 models: Glass fiber-reinforced polyamide thermoplastic housing; UL 94-VO rating

Contact Rating 4A @ 250V ac max.2.5 kV max. transient toleranceNEMA A300 P300

Mechanical Life 1 million operations

Maximum Actuator Speed 1.5 m/second (5'/second)

40-60 HzUeV

Ie/AC-15A

Ie/DC-13A

24 4 3110 4 0.7230 4 0.3

R

AuxiliaryDevices

LISTED

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Locking Style Safety Interlock Switches – Accessories

Model SizeUsed with


SI-QM-CG13 Pg 13.5 Metal SI-QM100 5.0 to 12.0 mm(0.20" to 0.47")

32 mm(1.3")

25 mm(1.0")Pg 13.5

Size ModelUsed with

Switch ModelsThread


SI-QM-13

1/2" - 14NPT

PlasticSI-QM100 Pg 13.5 to

1/2"- 14 NPT


(0.9")

27 mm(1.1")

Pg 13.5

O-ring

SI-QS-13

1/2" - 14NPT

PlasticSI-LS42 Pg 13.5 to

1/2"- 14 NPT

25.0 mm(0.98")

O-ring

Pg 13.5

1/2"-14 NPTInternal Thread

26.2 mm(1.03")

Note: One conduit adapter is supplied with each switch.

Conduit Adapters

SI-QS-CG13 Pg 13.5 Plastic SI-LS42 6.0 to 12.0 mm(0.24" to 0.47")

33 mm(1.3")

Pg 13.5 27 mm(1.1")

Cable Glands

Model DescriptionUsed with

Switch Models Thread

SI-PL2T-RSI-PL2A-RSI-PL2T-GSI-PL2A-G

24V ac/dc, Red120V ac, Red24V ac/dc, Green120V ac, Green

All

Dimensions

Pg 13.5

Indicator Lamps

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Locking Style Safety Interlock Switches – Accessories

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ModelUsed with

Switch ModelsType


SI-QM-SMFA SI-LS42

Application


In-line Metal

SI-QM-SSA AllFor doors or covers with accurate alignment, such assliding doors. Minimum engagement radius for hingedclosures is 400 mm (16").


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Magnet Style Safety Interlock Switches

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Magnet Style Safety Interlock Switches

Magnet Style Switches . . . . . . . . . . . . . . . . . . . . 230

Magnet Style Specifications. . . . . . . . . . . . . . . . . 231

Magnet Style Direction of Approach . . . . . . . . . . . 232

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Magnet Style Safety Interlock Switches – Model Selection

SI-MAG Series Switches• Non-contact safety switches are the best choice for washdown applications; the switch

components are sealed and rated NEMA 4X, IEC IP67

• Tolerant of dirt buildup, sensing distance, and alignment

• System consists of three components:- Coded magnet- Reed switch sensor- Controller module

• Magnet contains several differently-polarized magnets, and sensor contains pole-stable reedcontacts to minimize possibility of defeat

• Easy installation; can be concealed for added defeat resistance

• Sensor reed switches provide diverse input to the controller module

• Must be used with Gate Monitoring modules for safety applications- GM-FA-10J (page 172)- SI-MAG1C (page 174)

8 mm(0.31")

3 mm(0.12")

3 m (10')

3 mm(0.12")

14 mm(0.55")

SI-MAG3SM

4 mm(0.16")

8 mm(0.32")

SensorCable

Switching DistanceMin. ON Max OFF

7 mm(0.28" )

16 mm(0.63")

SI-MAG3MM

SI-MAG1MM

SI-MAG2MM

Coded Magnet

SI-MAG1MMHFSI-MAG1MM90**

SI-MAG1SMSI-MAG1SMCO†

SI-MAG2SM

Magnet Sensor*

* 9 m (30') cables are available for magnet sensors by adding suffix “W/30” to the model number of the cabledversion (e.g., SI-MAG1SM W/30).

** Difference is in Direction of Approach. See page 232.† Cable Opposite

SI-MAG Safety Switches

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43 mm(1.7")

22 mm(0.9")

7 mm(0.3")

26 mm(1.0")

ø 8.3 mm(0.33") (2)

ø 4.3 mm(0.17") (2)

SensingSurface

29 mm(1.1")

13 mm(0.5")

4.5 mm(0.18")

88 mm(3.5")

78 mm(3.1")

68 mm(2.7")

4.5 mm(0.18") (3)

6.5 mm(0.26")

25 mm(1.0")

10.7 mm(0.42")

7.2 mm(0.28")

2.5 mm(0.10")

13 mm(0.5")

SensingSurface

3.0 mm(0.12")

43 mm(1.7")

22 mm(0.9")

7 mm(0.3")

26 mm(1.0 in)

ø 8.3 mm(0.33") (2)

ø 4.3 mm(0.17") (2)

MagnetSurface

29 mm(1.1")

13 mm(0.5")

4.5 mm(0.18")

88 mm(3.5")

78 mm(3.1")

68 mm(2.7")

4.5 mm(0.18") (3)

6.5 mm(0.26")

25 mm(1.0")

10.7 mm(0.42")

7.2 mm(0.28")

2.5 mm(0.10")

13 mm(0.5")

MagnetSurface

3.0 mm(0.12")

SI-MAG1SM Magnet Sensor Dimensions

88 mm(3.5")

78 mm(3.1")

68 mm(2.7")

4.5 mm(0.18") (3)

6.5 mm(0.26")

25 mm(1.0")

10.7 mm(0.42")

7.2 mm(0.28")

2.5 mm(0.10")

13 mm(0.5")

SensingSurface

3.0 mm(0.12")

SI-MAG1SMCO Magnet Sensor Dimensions

SI-MAG1MM and SI-MAG1MM90Coded Magnet Dimensions

35 mm(1.4")

34 mm(1.3")

2 mm(0.1")

SW365.2 mm

(0.2")

27.5 mm (1.1")

M30 x 1.5 mm

SensingSurface

ø 35 mm (1.4")

15 mm (0.6")

9 mm (0.4")

35 mm(1.4")

25 mm(1.0")

4.5 mm (0.2")

10.5 mm(0.4")Magnet

Surface

SI-MAG3SM Magnet Sensor Dimensions SI-MAG3MM Coded Magnet Dimensions

SI-MAG2SM Magnet Sensor Dimensions SI-MAG2MM Coded Magnet Dimensions

Repeat Switching Accuracy ±0.1 mm (±0.004")

Construction Epoxy-encapsulated circuit in polyamide housing

Environmental Rating NEMA 4X, IEC IP67

Operating Temperature -5° to +70°C (+23° to +158°F)

Connections Integral PVC-jacketed 3 m (10') 4-wire cable. Cable O.D. is 5 mm (0.2"). Wires are 24 AWG (0.25 mm2).

Switching Elements Three pole-stable reed switches

Switching Capacity 30V dc max. @ 0.25W

Magnet Style Sensor Specifications

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Incorrect Direction of ApproachLabel to label approach of sensor and magnet is not possible

Direction ofMovement

Sensing face

CodedMagnet

Normal Direction of Approachmovement is perpendicular to theplane of the sensing face


MagnetSensor

Normal Direction of Approach for SI-MAG1MM9090º approach of sensor and magnet is not possible. Incorrect for any other model.



Incorrect Direction of ApproachLabel to label approach of sensor and magnet is notpossible


Incorrect Direction of Approach90º approach of sensor and magnet is not possible

Alternate Direction of Approachmovement is parallel to theplane of the sensing face


CodedMagnet

MagnetSensor





MagnetSensor

CodedMagnet



Important! The coded magnet mounting holes must be oriented as shown, relative to the magnetsensor cable position.

CodedMagnet

MagnetSensor



CodedMagnet

Important! The coded magnet mounting holes must be oriented as shown, relative to the magnetsensor cable position.

MagnetSensor


Incorrect Magnet Orientation

CodedMagnet

MagnetSensor

Direction of Approach for SI-MAG1.. sensor/magnet pairs

Direction of Approach for SI-MAG2.. sensor/magnet pairs

Direction of Approach forSI-MAG3.. sensor/magnet pairs

NOTE: For all magnet style switches, approach speedmust be greater than 0.2 m/s to allow for properswitching.

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Documents

Safety Interlock Switches - Steven Engineering