Siemens 3RV1011-1AA15 Molded Case Circuit Breaker

Siemens 3RV1011-1AA15 is a SIRIUS motor protection circuit breaker (MPCB) in molded‑case form used to safeguard small motors from overload and short‑circuit faults on 220–690 VAC systems. It delivers 0.55 kW rated motor power and covers a current range of 1.1–1.6 A, paired with a NO+NC auxiliary contact (1 normally open and 1 normally closed) for signaling to PLCs or interlocks on trip or ON status. Designed for DIN rail mounting in control panels, it provides integrated motor protection with a compact footprint suitable for machines such as pumps, fans, and conveyors. The protection is based on a thermal-magnetic trip mechanism that responds to overload and overcurrent conditions in the protected motor. As part of Siemens' Sirius 3RV motor protection lineup, the 3RV1011-1AA15 is selected for applications needing reliable overload protection with simple wiring within a single device.