Siemens 3RV1011-0JA10 Motor Protection Circuit Breaker

Siemens 3RV1011-0JA10 is a compact motor protection circuit breaker from the Sirius 3RV1 family, sized S00 and designed to guard small motors against overloads and fault currents in electrical panels. Rated for operation up to 690 V AC, it provides a nominal current range of 0.7 to 1 A (In) with an A-release trip characteristic (class 10), delivering reliable protection with quick disconnection when motor current exceeds the set limit. The device is a 3-pole unit intended for DIN-rail mounting, with screw terminals enabling straightforward wiring in compact control cabinets. As a single, integrated protective device, the 3RV1011-0JA10 combines monitoring and disconnection functions for motor circuits, reducing the need for separate overload relays in small machinery and equipment. Typical applications include protective blocks for small pumps, fans, and conveyors powered from industrial three-phase supplies, where space-saving protection and safe isolation are important. Within Siemens’ Sirius series, this model adheres to the S00 frame size and provides dependable motor protection in compact form factors, making it suitable for panel builders and integrators seeking a standardized, low-footprint solution for motor protection tasks.