Siemens 3RV1011-0EA25 Motor Protection Circuit Breaker

Siemens 3RV1011-0EA25 is a three‑pole motor protection circuit breaker (MPCB) in the Sirius family, sized S00, designed to shield small motors from overload and short‑circuit events while functioning as a disconnecting device in control panels. It is rated for up to 600 VAC at 50/60 Hz and supports three‑phase motor circuits, with an adjustable thermal (A‑release) setting in the 0.28–0.40 A range and a short‑circuit (N‑release) capability around 5.2 A, enabling coordinated protection with the motor’s nameplate current. The device uses screw terminals for secure wiring and provides standard switching capacity while incorporating a transverse auxiliary contact block (1 NO + 1 NC) for signaling or interlocking in motor circuits. Built for motor protection, this MPCB consolidates overload and short‑circuit protection in a compact S00 frame, suitable for applications in panels, machine tools, conveyors, pumps, and fans where Siemens Sirius protection is specified. As with any motor protection setting, verify the exact current values against the motor’s nameplate during configuration to ensure proper protection and reliable restart behavior.