Timer Relays

A timer relay is a combination of an electromechanical output relay and a control circuit. Its contacts open or close before or after a preset time delay. Time‑delay relays can be initiated in two ways: by applying the input or auxiliary supply voltage, which either starts the timing function immediately or prepares the relay to be triggered, or by applying a separate trigger signal after the supply voltage is present. This trigger can be a control switch (dry contact) or a voltage signal.

Monitoring Relays

Timer, one-shot, AC input, 4 pole

Protection relays are often the last barrier to protect rolling stock and trackside equipment in the event of upstream protection system failure. They do not require auxiliary supply. Their mechanical life of 100 million operations exceed train lif...

D-DOCK

TEAU

EA 111

T2CBBU

D-TEST SWITCH

Our components and systems are compliant with all relevant standards

Mors Smitt products are designed and compliant to the strictest railway directives.

EN 50155 – European Standard for Electronic Equipment used on Rolling Stock

IEC 60571– International Standard for Electronic Equipment used on Rolling Stock with minor deviation equivalent to EN 50155

IEC 61373 – Shock and Vibration for application used in Rolling Stock

EN 50125 – Environmental Condition for Equipment in Rolling Stock

EN 50124 – Isolation condition
Basic requirements clearance and creepage distances

EN 45545 – Fire and Smoke

NFPA130 / ASTM E - Fire and Smoke criteria used in American Market

Mors Smitt is IRIS certified

IRIS (International Railway Industry Standard) Certification™ aims to improve the quality and reliability of the rail products through the supply chain by implementing a global system for the evaluation of companies supplying the rail industry. Mors Smitt is IRIS certified based on the international standard ISO/TS 22163.