Siemens 3RV2011-0CA10 Motor Protection Relay

Siemens 3RV2011-0CA10 is a motor protection circuit breaker (MPCB) in the S00 size of the SIRIUS 3RV2 family, engineered to guard small three-phase motors from overload and short-circuit faults. It combines thermal overload protection with a fixed A‑release current and a short-circuit release (N‑release): A‑release current 0.18–0.25 A and N‑release 3.3 A, Class 10, making it suitable for precise motor protection in compact control panels. Rated for up to 690 V AC at 50/60 Hz, it supports running currents in the 0.18–0.25 A range, helping to prevent nuisance trips on low‑current drives. Designed for panel mounting with a compact S00 frame and screw-terminal connections, it also specifies an ambient temperature range from -20 °C to 60 °C for typical industrial environments. Common applications include protection of small motors on machine tools, conveyors, pumps, and automated packaging lines, where reliable overload and short‑circuit protection is required in a limited space. The 3RV2 family provides compatible form factors and integrated motor protection features, and 3RV2011-0CA10’s precise A/N releases and 690 V rating make it a direct replacement for similar low‑current motor protections while maintaining coordination with upstream protective devices.