Siemens 3RV2021-4BA20 (SIRIUS) Motor-Protective Circuit-Breaker

Siemens SIRIUS 3RV2021-4BA20 — a compact motor-protective circuit-breaker/starter intended for industrial motor control applications. Provides protection against overload, short-circuit and phase-failure for motor circuits. Designed for modular mounting in control panels or on DIN rail and compatible with SIRIUS accessories and control modules.