3RH2122-2LB40-0LA0 SIEMENS

The 3RH2122-2LB40-0LA0 is a highly reliable contactor relay specifically designed for railway applications, ensuring dependable performance in demanding environments. This 3-pole contactor relay features a robust construction and spring-type terminals for secure and vibration-resistant connections. It is equipped with 2 normally open (NO) and 1 normally closed (NC) auxiliary contacts, providing versatile control options for various railway systems. The relay operates on a 24 V DC supply voltage, with a wide operating range of 0.7 to 1.25 times the rated voltage (US), ensuring stable operation even with voltage fluctuations. An integrated varistor provides effective surge protection, safeguarding the relay and connected equipment from voltage spikes. Its compact size S00 allows for space-saving installation in control cabinets and enclosures. This contactor relay is ideal for switching and controlling auxiliary circuits in railway signaling, traction, and other critical applications. Siemens' commitment to quality ensures long-lasting and trouble-free operation. The spring-type terminals facilitate quick and easy wiring, reducing installation time and effort.