3TC5617-0LJ8 SIEMENS

The 3TC5617-0LJ8 is a robust and reliable 2-pole DC contactor from Siemens, designed for demanding applications requiring high current switching. This contactor is size 12, making it suitable for medium to large industrial equipment. It is specifically rated for DC-3 and DC-5 utilization categories, with a switching capacity of 400 A at 750 V DC. The integrated auxiliary contacts, configured as 2 NO (normally open) and 1 NC (normally closed), provide additional control and feedback capabilities. It operates on a 72 V DC control voltage, ensuring compatibility with common DC power systems. To enhance operational reliability and protect against voltage spikes, the contactor incorporates a varistor and series resistor within its DC operation circuit. The operating range of 0.7 to 1.25 x US (rated voltage) allows for flexibility in voltage supply conditions. This contactor is ideal for use in DC traction systems, battery storage systems, and other high-power DC applications. Its durable construction and reliable performance make it a valuable component in critical industrial processes.