3RH2122-4KB40-0LA0 SIEMENS

The 3RH2122-4KB40-0LA0 from Siemens is a contactor relay specifically designed for railway applications, ensuring reliable performance in demanding environments. This relay features a configuration of 2 normally open (NO) contacts and 2 normally closed (NC) contacts, providing versatile control options for various circuits. 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 suppressor diode protects the relay and connected circuits from voltage spikes, enhancing its durability and longevity. The relay is size S00, making it compact and suitable for installations with limited space. Its ring cable lug connection is specifically designed for easy and secure connection to PLC outputs, simplifying wiring and reducing installation time. This contactor relay is ideal for railway signaling, control systems, and other applications requiring high reliability and precise control. It adheres to industry standards for railway equipment, ensuring compliance and safety. Siemens' commitment to quality ensures that this contactor relay delivers consistent and dependable performance.