Siemens 3RV2011-OHA10 Three Phase Overload Relay

Siemens 3RV2011-0HA10 is a three‑pole motor protection circuit breaker from the SIRIUS 3RV2 family (size S00), designed for motor protection in switchgear and control panels. It provides overload protection with an adjustable current‑dependent trip (A‑release) in the range 0.55–0.8 A and a separate N‑release rated at 10 A, all in a compact, screw‑terminal three‑phase main circuit. Rated for mains voltages up to 690 V AC and built for ambient temperatures from –20 to +60 °C with 10–95% relative humidity (non‑condensing), this device combines overload and short‑circuit protection for reliable motor control. Typical uses include pumps, fans, conveyors, and other three‑phase machines where integrated protection and a compact footprint are required, and it pairs with Siemens contactors in Sirius motor‑protection switch assemblies to form a coordinated protection solution within industrial control panels.