Siemens 3RV2031-4AV10 Motor Protection Circuit Breaker

Siemens 3RV2031-4VA10 is a three‑pole motor protection circuit breaker from the Sirius 3RV2 family, sized in the S2 frame for motor protection and rated to switch three‑phase motors up to 690 V. It supports a nominal motor current range of 35–45 A and combines thermal overload protection (A‑release) with a magnetic short‑circuit release (N‑release) to interrupt faults quickly. The device uses screw terminals, is DIN‑rail mountable, and is rated IP20 for indoor panel service; its enclosure measures roughly 140 mm tall, 55 mm wide, and 149 mm deep. This compact protective device is intended for inclusion in motor starter assemblies or as the protective element in control panels protecting 3‑phase motors, delivering coordinated overload and fault clearance in industrial environments.