3RH2122-4LB40-0LA0 SIEMENS

The 3RH2122-4LB40-0LA0 is a highly reliable contactor relay specifically designed for railway applications, ensuring robust performance in demanding environments. This 3-pole contactor relay features a configuration of 2 normally open (NO) and 1 normally closed (NC) auxiliary contacts, providing versatile control options. It 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. The contactor relay is size S00, making it compact and suitable for installations with limited space. It utilizes ring cable lug connections for secure and reliable electrical connections, minimizing the risk of loose connections and ensuring consistent performance. This contactor relay is ideal for railway signaling systems, rolling stock control, and other critical railway applications where reliability and safety are paramount. Siemens' commitment to quality ensures that this contactor relay meets the stringent requirements of the railway industry, providing long-lasting and dependable operation.