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Microelettrica Scientifica S.p.A.

Via Lucania, 220090 Buccinasco (MI)Italy Tel: +39 02 57573-1 Fax: +39 02 57510940

W W W . M I C R O E L E T T R I C A . C O M

This publication may be subject to alteration without prior notice. A printed copy of this document may not be the latest revision. Please contact your local Knorr-Bremse representative or check our website www.knorr-bremse.com for the latest update. The figurative mark “K” and the trademarks KNORR and KNORR-BREMSE are registered in the name of Knorr-Bremse AG. Copyright 2018 © Knorr-Bremse AG. All rights reserved, including industrial property rights applications. Knorr-Bremse AG retains all power of disposal, such as for copying and transferring.

APPLICATIONSHigh-Speed Trains | Light Rail Vehicles | Locomotives | Metros | Passenger Coaches | Regional and Commuter Trains | Special Vehicles

Electromechanical and Electronic Components

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R A I L V E H I C L E S Y S T E M SE L E C T R O M E C H A N I C A L A N D E L E C T R O N I C C O M P O N E N T SSTATE-OF-THE-ART

ELECTROMECHANICAL AND ELECTRONIC COMPONENTS FOR RAIL APPLICATIONS

Greater speed, more capacity over longer operational periods: the frontiers of rail and urban transportation systems are changing continuously and Microelettrica Scientifica is evolving with them through continuous innovation in its products and technologies.

TRACTION INNOVATIONFor 60 years Microelettrica Scientifica products have

accompanied and often anticipated the evolution of rail

transportation all over the world. Today, Microelettrica

Scientifica contactors, disconnectors, power resistors,

DC high-speed circuit breakers, high-voltage metering

transducers and now also COMET fans have become the

standard of reference for a growing number of leading

rail vehicle customers all over the world.

CONTINUOUS EVOLUTIONOur processes, from product conception to product

validation, from choice of materials to final routine tests,

are accurately controlled to guarantee total performance

and safety. Customer satisfaction is important to us and

we are committed to offering innovative solutions that

improve the cost/performance/features balance of our

products.

WE WORK TOGETHER WITH OUR CUSTOMERSIt is our philosophy to manage the evolution of our

products in full coordination and collaboration with our

customers. From the first contact and throughout the

development process a close working relationship with

our customers is important to us. In this way we can help

in selecting and defining the product which best

fits the requirements of the individual customer. Most

product developments start from a wide range of

consolidated products and technologies. In case of

special requirements we are always eager to develop

custom-specified products, and both in research and

development and manufacturing capabilities our

company is well structured to meet the requirements of

the most demanding projects.

MADE BY MICROELETTRICA SCIENTIFICAAlways aiming for the best results, Microelettrica

Scientifica develops and manufactures its entire range at

its facility based close to Milan, Italy. We also run opera-

tions in the United States, South Africa, China, Brazil,

France and Turkey. Customers have access to immediate

local assistance and the possibility of localization of

Microelettrica Scientifica products. Our customers

know they can always count on the quality, excellence

and precision of Microelettrica Scientifica products

and services.

Contactors

Disconnectors

DC high-speed circuit breakers

Resistors

High-voltage transducers

Fans

Protection relays

Sour

ce Si

emen

s AG

PRODUCTS

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R A I L V E H I C L E S Y S T E M SE L E C T R O M E C H A N I C A L A N D E L E C T R O N I C C O M P O N E N T S

CUSTOMER BENEFITS n High performance with reduced weight

and sizen Wide choice of ratings to fit the most

diverse applicationsn Highly configurable for improved

system integration

Switches are remotely controlled devices used to open or close an electric circuit or change its configuration. They are divided into contactors and disconnectors.

Contactors are able to open and close under load

conditions. Today they are used to connect and

disconnect high-power traction converters, auxiliary

converters, auxiliary circuits (heating, climate

control, compression, lighting, magnetic brakes).

Disconnectors are mainly used in multi-system

locomotives to change the configuration of the

traction circuit when the catenary voltage changes.

The devices operate at no load and are also

used to disconnect a failed device if necessary.

Our products are characterized by their high

customization potential. This makes it possible to

address the customer’s individual requirements.

CONTACTORS AND DISCONNECTORS

Our resistors are made mostly of steel alloy and ceramic

materials, and as a result provide total compliance

with the strictest standards of flammability and insulation

levels. Each brake resistor is designed, tested and

validated to provide a 100% customized solution

for each project/vehicle.

CUSTOMER BENEFITSn Design, type-testing and validation are done in close

cooperation with our customersn Automated plant production complies with ISO 9000

Quality Standards requirements and guarantees active

element qualityn Economical and suitable for life cycle of over 25 years

RESISTORS CONTACTORS

LTHS Flexible line, up to 2000 V and 1500 A/pole.

LTC Compact line, up to 2000 V and 1000 A/pole.

LTHH/LTE Higher-voltage line, up to 4000 V and 1800 A/pole.

LTX New line, up to 900 A per pole. Modular thanks to 4 different arc chutes (900, 1800, 3600 or 4000 V) and up to 3 pole versions. Flexible thanks to 3 configurable HV connections.

DISCONNECTORS

LTHM/P-U/D Flexible line, up to 4000 V, 800 or 1500 A/pole.

LTMP Modular line, up to 4000 V, 1000 or 2000 A/pole.

LTK New line up to 1000 A per pole and 4000 V. Modular, up to 3 poles versions. Flexible thanks to 3 configurable HV connections.

INTEGRATED FUNCTIONAL UNITS

IFU Customized Integrated Functional Unit products. Up to 4000 V and 6000 A per pole.

LPRC New modular integrated system for line and precharge functions. Up to 2000 V and 1000 A.

Braking Convection / forced cooled, roof, undercar or in-vehicle

Continuous Filter, damping, etc., multifunctional units possible

Impulsive Crowbar, charging, discharging, also in aluminum case

Compact resistors

Compact and modern design, low inductance, can be subjected to pulse loads

Frame resistors

Flat modular design, high energy absorption capacity, low-inductance version, can be subjected to pulse loads

HIGH-SPEED CIRCUIT BREAKERS (HSCBs)

IR6040SV 1.5/3 kV (dual voltage vers. avail.), 4000 A Ith, coil/permanent magnet holding, uni and bi-directional trip.

IR3000SV 750 V/1.5 kV (dual voltage vers. avail.), 3000 A Ith, coil/permanent magnet holding, uni and bi-directional trip.

IR4030VV / IR4045 VV

Compact line 3000 or 4500 A Ith, coil holding, motor operated, uni and bi-directional intrinsic trip system. Vertical mounting for 900, 1800 and 3600 V DC. Dual voltage 1800/3600 V DC version available. TSI LOC&PAS Certified.

IR4030VH Compact line 3000 A Ith, coil holding, motor operated, uni and bi-directional intrinsic trip system. Horizontal flat mounting for 1800 and 3600 V DC. TSI LOC&PAS Certified. Customized box available.

CUSTOMER BENEFITSn High performancen Possibility of co-design with customern High flexibility and customizationn Reduced maintenance

Our HSCBs are designed using the latest 3D CAD technologies and are

suitable for every rail application. Whenever the protection of the

system is required, our HSCB works as a close partner with the

propulsion designers. The HSCB protects the circuit from short circuits

and overcurrent faults. It reacts to the increase of the current in a very

short time (10 ms) and this is why it is designated as a high-speed

circuit breaker. Every HSCB is designed according to EN60077.

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R A I L V E H I C L E S Y S T E M SE L E C T R O M E C H A N I C A L A N D E L E C T R O N I C C O M P O N E N T S

The Energy Measurement and Management System (EMMS) named ECOSystem provides measure-ments and data suitable for energy billing management according to EN50463, for the vehicle logic, the propulsion control system, the voltage indicator on the control desk unit and other electronic measurements.

CUSTOMER BENEFITSn Extensive solutions to train logic interfacen Certified safety functions

n High level of integrationn Low weight and sizen High accuracyn Smoke emission-freen Maintenance-freen Catenary detection

n Overcurrent detection

n Harmonics detection

n Analog output ripple detection

FANS AND BLOWERSMore than 60,000 of our fan units are installed

on rolling stocks worldwide, in more than 250

international rail projects. Energy-saving and

low-noise design concepts have always been

applied to all our products, which are

specifically developed to provide the best

solutions in terms of performance, geometry,

weight, noise level and efficiency, for each of

the most critical services on board rolling

stock.

VENTILATED SUBSYSTEMS Our product range extends to complete

ventilated subsystems, such as filtering

systems (for traction motor or machine

room ventilation) and cooling systems (for

converters and transformers). Specific and

dedicated fan units from our portfolio are

integrated with radiators and filters coming

from carefully selected partners, while the

reliability of the structural parts is guaranteed

by the long-term experience of our Group in

the design and manufacturing of frames for

critical on-board installations.

The full control on the design and validation

process is achieved by extensive use

of our in-house laboratories, including

up-to-date Shock&Vibration, Environmental

and Performance test facilities.

METERING ECOSYSTEM

METERING

Thepsys Thermal protection system for braking resistors provided with digital and analog outputs

ECOMeter VECOMeter VIECOMeter DC

Most recent evolution of our innovative on-board metering line. Compact and easy-to-mount solutions for the on-board high-accuracy metering and detection of voltage, current and active/reactive energy according to EN 50463

ECOBox Expansion box to provide vehicle interface (DO, AO, other communication interfaces)

ECOBox-RSIL Expansion box to provide SIL2 vehicle inter-faces for subsequent functions obtained in bundle with any ECOMeter type

ECOCom Data handling system (DHS) for generation and collection of CEBD and data communica-tion to GND

ECOModule Energy measurement system. It uses already existing metering devices. It integrates ECF and DHS functions

ECOLogic Ground SW to handle the CEBD data from DHS, store the data on the server and send the data to the billing provider. It also handles the system diagnostics and configuration

FANS

AF/LA/AFH Series Medium and high-performance direct-driven axial fans for traction blocks, brake resistors, cooling systems

CF/OR/COR/ORV Series

Highly reliable centrifugal fans with housing or plug-type for traction motors, converters, transformers, filtering systems

CNX / MXF Series High-pressure, low-noise axial and mixed flow units for traction motors, brake resistors

VENTILATED SUBSYSTEMS

Cooling Systems Water cooling for traction systems. Oil cooling for transformers. Featuring plate-and-bar vacuum brazed radiators, welded and riveted frames, specifically designed fan units. Complete hydraulic systems available.

Filtration and Ventilation Systems

Dust + water filters, textile, metallic, cyclonic types.Compact, low-noise, high-reliability, low-main-tenance fan units. Welded and riveted frames in carbon/stainless steel and aluminum.