3RV20210GA25

This Siemens 3RV20210GA25 is a robust circuit breaker from the SIRIUS 3RV2 series, specifically engineered for motor protection applications. It features a size S0 form factor and a thermal magnetic overload release with an adjustable current response value ranging from 0.45 to 0.63 A. The breaker is equipped with three poles and supports a rated operating voltage of up to 690 V.

Designed for reliability, it includes a phase failure detection function and a CLASS 10 trip class. The unit comes with a transverse auxiliary switch configuration, providing 1 normally open (NO) and 1 normally closed (NC) contact for signaling or control purposes. Its mechanical and electrical endurance is rated for a typical 100,000 switching cycles.

The circuit breaker is suitable for installation on a DIN rail and operates within an ambient temperature range of -20 to +60 °C. It also meets ATEX directive requirements, indicated by its Ex II (2) GD protection type and certificate DMT 02 ATEX F 001.

Key electrical characteristics include an operational current of 0.63 A at AC-3 and AC-3e at 400 V, with corresponding operating power ratings. Auxiliary contacts are rated for AC-15 and DC-13 applications, supporting various control voltages and currents.