3TH4253-0LP4 SIEMENS

The 3TH4253-0LP4 is a highly reliable contactor relay from Siemens, specifically designed and manufactured to meet the stringent requirements of railway applications. This relay conforms to DIN EN 50011 standards, ensuring compatibility and performance within established railway systems. Featuring a contact configuration of 5 normally open (NO) and 3 normally closed (NC) contacts, it provides versatile switching capabilities for a variety of control circuits. The relay utilizes screw terminals for secure and dependable electrical connections, minimizing the risk of loosening due to vibration or thermal cycling. Its operating range spans from 0.7 to 1.25 times the rated control supply voltage (Us), offering tolerance to voltage fluctuations. This particular model is designed for a 230 V DC control voltage and includes a built-in varistor for surge suppression, protecting the relay coil from voltage spikes. The integrated varistor enhances the relay's durability and extends its operational lifespan, particularly in harsh electrical environments. Ideal for safety-critical applications within railway infrastructure, the 3TH4253-0LP4 ensures reliable and consistent performance.