Knorr-Bremse Rail Vehicle Systems & Spares: EP2002/ESRA/CCB II Brakes, VV Compressors, IFE Doors & Merak HVAC

Supply railway braking and onboard subsystems from the Rail Vehicle Systems division of Knorr-Bremse AG (Munich, Germany, founded in 1905): VV120-T/VV180-T oil-free and RSW screw compressors, EP2002, ESRA, CCB II, and KE brake controls, RZT and PC7 bogie brakes, ISOBAR pads, MGS3 wheel slide protection, IFE doors, Merak HVAC, and Selectron TCMS.

Knorr-Bremse Rail Oil-Free & Rotary Screw Compressors (VV, RSW, SL) & Air Dryers

Knorr-Bremse railway compressed air supply systems for high-speed EMUs, locomotives, and metro cars include oil-free reciprocating compressors (VV120-T, VV180-T, VV270-T), rotary screw units (RSW / SL), and twin-tower adsorption air dryers achieving a -40 degree dew point.

Oil-free piston compressors VV120-T, VV180-T, and VV270-T eliminating crankcase oil and condensate carryover
Low-vibration RSW and SL rotary screw compressor packages for heavy-haul locomotives and high-speed trains
Twin-chamber adsorption air dryers with automatic regeneration maintaining pressure dew points down to -40 degrees
Modular underframe or roof-mounted container frames with integrated acoustic damping and vibration mounts

Knorr-Bremse Rail Brake Control Systems: EP2002, ESRA, CCB II / CCB III & KE Valves

Knorr-Bremse electro-pneumatic and microprocessor brake control systems regulate distributed and direct braking across passenger coaches, metro trainsets, and freight trains.

Key platforms include EP2002 smart valves, the ESRA modular system, CCB II / CCB III locomotive brake controls, and KE pneumatic brake control valves.

Distributed EP2002 architecture (SmartValve and GatewayValve units) providing bogie-specific brake control
Modular ESRA (Electronic System for Rail Applications) brake control carrier for high-speed and regional EMUs
Computer-Controlled Brake systems CCB II and CCB III for mainline freight and passenger locomotives
UIC-compliant KE pneumatic brake control valves and load-proportional relays for freight and passenger cars

Knorr-Bremse Bogie Brake Equipment: RZT Calipers, EPAC, PC7 Tread Units & Track Brakes

Knorr-Bremse bogie foundation brake equipment comprises RZT brake calipers with axle- and wheel-mounted discs, compact EPAC electro-pneumatic calipers, PC7 tread brake units, and magnetic track and eddy-current brakes engineered for operating speeds up to 350 km/h.

RZT brake caliper units and slack-adjusting actuators engineered for high-speed trains up to 350 km/h
Compact EPAC integrated electro-pneumatic brake calipers for low-floor trams, LRVs, and metro bogies
PC7 compact tread brake actuator blocks (service and spring-parking configurations) for locomotives and freight cars
Magnetic track brakes and linear eddy-current brakes delivering adhesion-independent emergency deceleration

Knorr-Bremse Sintered & Organic Brake Pads (ISOBAR) & Problock Composite Brake Blocks

Knorr-Bremse friction materials maintain a consistent friction coefficient across dry, wet, and sub-zero rail conditions at disc temperatures up to 700 degrees. The lineup includes ISOBAR sintered pads, organic disc pads, and low-noise Problock composite brake blocks.

Sintered metallic brake pads with the ISOBAR spring-element suspension for uniform contact pressure distribution
Consistent friction performance and low rotor wear under thermal peaks up to 700 degrees
Problock composite brake blocks (UIC K-block and LL-block standards) reducing wheel surface roughness and rolling noise
Replacement friction segments, pad holders, locking keys, and retaining clips for depot bogie overhauls

Knorr-Bremse Wheel Slide Protection (MGS3), Dump Valves & Sandra / GripMaster Sanding

Knorr-Bremse wheel-rail adhesion management systems prevent wheelset locking, wheel flats, and extended stopping distances on wet or leaf-contaminated rails. Products include MGS3 controllers, axle speed sensors, anti-skid dump valves, and Sandra / GripMaster sanding systems.

MGS3 (Generation 3) microprocessor Wheel Slide Protection controllers with axle-individual slip regulation
Fast-acting electro-pneumatic anti-skid dump valves and magneto-resistive axle speed sensors
Sandra and GripMaster automated speed-dependent rail sanding systems with heated dosing nozzles
Full compliance with EN 15595 wheel slide protection performance and safety standards

IFE (Knorr-Bremse) Automatic Passenger Entrance Systems, Door Drives & Sliding Steps

The Austrian brand IFE (part of Knorr-Bremse Rail Vehicle Systems) is the global market leader in automatic entrance systems for high-speed trains, commuter EMUs, metro cars, and light rail vehicles.

The range includes RLS sliding plug doors, external sliding doors, pocket doors, DCU drives, and gap bridges.

RLS series sliding plug doors, pressure-sealed high-speed train doors, and heavy-duty metro pocket doors
Brushless electric spindle and belt door drive mechanisms paired with diagnostic Door Control Units (DCU)
Retractable sliding steps, platform gap bridges, and boarding lifts/ramps for barrier-free passenger access
Genuine IFE replacement roller carriages, sensitive-edge rubber seals, mechanical locks, and limit switches

Merak (Knorr-Bremse) Railway HVAC Climate Control Systems (R290 & R744 CO2)

Merak (the climate control brand of Knorr-Bremse Rail Vehicle Systems) designs and manufactures integrated Heating, Ventilation, and Air Conditioning (HVAC) units for passenger saloons and driver cabs, featuring natural-refrigerant heat pumps running on R290 (propane) and R744 (CO2).

Roof-mounted and underframe compact HVAC units for high-speed EMUs, metro cars, trams, and locomotive cabs
Eco-friendly reversible heat pump architectures operating on natural refrigerants R290 and R744 (CO2)
Demand-controlled ventilation via saloon CO2 sensors and integrated AirPurifier sterilization modules
Replacement scroll compressors, condenser/evaporator blower fans, expansion valves, and HVAC control boards

Selectron TCMS Controls, PowerTech Auxiliary Converters & Knorr-Bremse RailServices

Knorr-Bremse's rolling stock subsystem portfolio encompasses Selectron Train Control and Management System (TCMS) PLCs, PowerTech Auxiliary Power Supplies (APS) and battery chargers, Microelettrica high-voltage switchgear, and lifecycle spare parts and overhauls via Knorr-Bremse RailServices.

Selectron TCMS programmable controllers, gateways, and I/O modules certified to EN 50155 and up to SIL 2
Knorr-Bremse PowerTech Auxiliary Power Converters (APS) and onboard traction battery chargers
Microelettrica Scientifica high-speed DC circuit breakers, contactors, and power resistors for rail traction
Genuine overhaul kits, seal sets, pressure transducers, and factory component refurbishment via RailServices

Knorr-Bremse Rail Nameplate Identification, Subsystem Brands & Spare Parts Selection

The Rail Vehicle Systems division of Knorr-Bremse AG—Knorr-Bremse Systeme für Schienenfahrzeuge GmbH (founded in 1905 in Germany and headquartered at Moosacher Str.

80, 80809 Munich, with over 30000 Group employees across more than 100 sites in 30 countries)—is the global market leader in braking and onboard subsystems for high-speed trains, commuter EMUs, metro cars, light rail trams, locomotives, and freight cars.

The division integrates specialized rail technology brands: IFE (automatic passenger entrance doors and sliding steps), Merak (integrated railway HVAC climate control), Selectron (Train Control and Management System TCMS controllers), Knorr-Bremse PowerTech (auxiliary power converters), and

Microelettrica Scientifica (high-voltage DC circuit breakers and contactors).

To request a complete assembly or a genuine RailServices overhaul kit, specify the product series (VV120-T, VV180-T, VV270-T, RSW, SL, EP2002, ESRA, CCB II, CCB III, KE, RZT, EPAC, PC7, ISOBAR, Problock, MGS3, Sandra, GripMaster, RLS), the factory part number from the nameplate, and the rolling

stock platform.

Oil-Free Reciprocating Compressors (VV120-T / VV180-T / VV270-T), RSW / SL Screw Units & Dryers

Dry, oil-free compressed air is essential for the reliability of pneumatic brake control valves, air suspension, and track sanding equipment.

Knorr-Bremse developed the VV120-T, VV180-T, and VV270-T oil-free piston compressor series, operating entirely without crankcase lubrication to eliminate oil carryover and oil-contaminated condensate disposal.

For heavy-haul locomotives and high-speed trainsets with high air demand, low-noise RSW and SL rotary screw compressor units are supplied in modular underframe or roof-mounted acoustic containers with multi-stage vibration isolation.

Twin-tower adsorption air dryers with automated desiccant regeneration maintain pressure dew points down to -40 degrees, preventing valve icing across sub-zero rail corridors.

Brake Control Architectures: EP2002 Smart Valves, ESRA, CCB II / CCB III & KE Valves

For electric multiple units and urban metro fleets, Knorr-Bremse deploys the distributed EP2002 electro-pneumatic brake control system built around mechatronic SmartValve and GatewayValve units.

Mounting brake control valves directly adjacent to each bogie shortens pneumatic piping, accelerates brake response times, and integrates bogie-specific wheel slide protection.

The modular ESRA (Electronic System for Rail Applications) brake control frame integrates electronic and pneumatic modules for regional and high-speed trains, while Computer-Controlled Brake systems CCB II and CCB III equip mainline freight and passenger locomotives.

For freight wagons and passenger coaches, Knorr-Bremse manufactures UIC-compliant KE pneumatic brake control valves, relay valves, load-proportional valves, driver brake valves, and emergency brake accelerators.

Bogie Brake Equipment (RZT, EPAC, PC7), Brake Discs & ISOBAR / Problock Friction Materials

Knorr-Bremse axle- and wheel-mounted disc brake systems are engineered for operating speeds up to 350 km/h.

Bogie foundation brake equipment includes RZT brake caliper units with integrated automatic slack adjusters, ventilated finned brake discs, and compact EPAC electro-pneumatic calipers for low-floor trams and metro bogies.

For tread-braked locomotives and freight cars, compact PC7 actuator blocks are supplied in service and spring-parking configurations, complemented by magnetic track brakes and linear eddy-current brakes for adhesion-independent emergency braking.

The friction portfolio encompasses ISOBAR sintered metallic brake pads with elastic pressure-equalizing elements (withstanding thermal peaks up to 700 degrees), organic disc pads, and quiet Problock composite brake blocks (UIC K and LL classes).

MGS3 Wheel Slide Protection (EN 15595) & Sandra / GripMaster Automated Sanding

During braking and traction on wet, icy, or leaf-contaminated rails, the MGS3 microprocessor Wheel Slide Protection system (Generation 3, certified to EN 15595) monitors rotational deceleration across every wheelset via axle-end speed sensors.

When incipient wheel slip is detected, fast-acting electro-pneumatic anti-skid dump valves modulate brake cylinder pressure within milliseconds to prevent wheel locking and costly wheel flats.

To actively restore wheel-rail adhesion, the brake control system coordinates Sandra and GripMaster automated sanding systems, injecting a metered stream of dry quartz sand through heated nozzles directly into the wheel-rail contact patch.

IFE Automatic Entrance Systems (RLS Doors) & Merak Natural-Refrigerant HVAC (R290 / R744)

The IFE division manufactures RLS external sliding plug doors, pressure-tight entrance doors for high-speed trains, heavy-duty metro pocket doors, retractable sliding steps, and barrier-free boarding lifts.

Brushless electric spindle/belt door drives with diagnostic Door Control Units (DCU) provide continuous obstacle detection and lock monitoring.

Merak roof-mounted and underframe HVAC climate control units regulate temperature, humidity, and air quality in passenger saloons and driver cabs. Next-generation reversible heat pump units operate on eco-friendly natural refrigerants R290 (propane) and R744 (CO2).

Merak systems incorporate saloon CO2 sensors for demand-controlled fresh air ventilation alongside integrated AirPurifier air sanitization modules.

Selectron TCMS, PowerTech Converters, Microelettrica Switchgear & RailServices Overhaul Kits

Swiss subsidiary Selectron develops programmable logic controllers, communication gateways, and distributed I/O modules for Train Control and Management Systems (TCMS), certified to EN 50155 and functional safety levels up to SIL 2.

Onboard power electronics and switchgear include Knorr-Bremse PowerTech Auxiliary Power Supplies (APS) and battery chargers, paired with Microelettrica Scientifica high-speed DC circuit breakers, contactors, and power resistors.

Through Knorr-Bremse RailServices, SpareX supplies genuine depot overhaul kits, dryer desiccant cartridges, elastomeric seal sets, valve boards, speed sensors, IFE door rollers, and Merak HVAC spares with international door-to-door logistics.

Subsystem configurations, factory production lead times, and export pricing for Knorr-Bremse Rail products and RailServices overhaul kits are calculated individually upon technical inquiry; public retail price lists are not published by the manufacturer.

We operate as an independent international supplier and are not an exclusive agent of Knorr-Bremse Systeme für Schienenfahrzeuge GmbH.