Siemens 3RT2017-2LJ82-0LA0 Contactor

Siemens SIRIUS 3RT2017-2LJ82-0LA0 is a three‑pole traction contactor (size S00) with a 72 V DC coil, designed for AC‑3 duty up to 12 A and 5.5 kW at 400 V. It includes an integrated varistor for surge protection and uses spring‑type terminals for secure connections. The device provides 690 V insulation for both main and auxiliary circuits and a coil‑to‑main isolation rating of up to 400 V, with an IP20 front rating. It tolerates -40 to +70 C and operates up to 2,000 m above sea level, offering very high mechanical life—typically up to 30,000,000 switching cycles for the main contactor, with additional auxiliary configurations reaching millions of cycles.