Siemens 3RV1011-0FA10 Molded Case Circuit Breaker

Siemens 3RV1011-0FA10 is a three-pole motor protection circuit breaker (MPCB) in the S00 size, part of the SIRIUS 3RV1 family, designed for motor protection up to 690 V AC. It provides thermomagnetic overload and short-circuit protection with an overload release (A-rel) adjustable from 0.35 to 0.5 A and a fixed instantaneous release (N-rel) of 6.5 A, enabling selective protection for small motors. The device can interrupt up to 100 kA at 690 V and is mounted on a 35 mm DIN rail (DIN EN 60715) with screw or snap-on mounting. Its physical dimensions are 90 mm in height, 45 mm in width, and 75 mm in depth. In motor applications it is commonly used for protection of motors drawing around 0.12 kW at 220–690 VAC and can be configured with optional auxiliary contacts for signaling.