Siemens 3RV1041-4MA10 Molded Case Circuit Breaker

Siemens 3RV1041-4MA10 is a three-pole molded-case circuit breaker (MCCB) designed for motor protection, size S3, rated for 100 A. This Sirius/S3-class device features an adjustable overload release from 80 to 100 A and a non-delayed instantaneous release of 1,235 A, enabling reliable protection for three-phase motors up to 690 VAC. It uses screw-terminal connections for straightforward wiring and weighs about 2.28 kg with packaging dimensions of 76 x 171 x 192 mm. The part is listed with EAN 4011209299764 and UPC 754554409443, and Siemens notes it as a phased-out product with 3RV2041-4MA10 as its recommended successor. While this model remains common in legacy installations, availability may be limited and migration to the newer 3RV family is advised. In practical terms, it protects small to mid-size three-phase motors in industrial applications by providing motor protection at overload and short-circuit conditions, aligning with typical motor protection practices in control panels up to 690 VAC.