The Siemens 3VA1132-3EF32-0JC0 is a SENTRON 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 32 A continuously at 40 °C and interrupting up to 75.6 kA at 240 V. That interrupting rating drops to 52.5 kA at 415 V and 32 kA at 440 V, so the breaker's fault-clearing capability scales with system voltage — a key selectivity consideration when coordinating downstream devices. Thermal derating stays flat at 32 A from 40 °C through 50 °C, then steps down to 31 A at 55 °C and 60 °C, and 30 A at 65 °C and 70 °C — useful if the panel runs warm near other heat sources.
Physical Fit & Integration
The breaker measures 70 mm deep by 76.2 mm wide by 130 mm high — a standard panel-mount footprint for the SENTRON 3VA frame. It accepts screw-type or busbar connections and integrates into DIN-rail or backplate assemblies. Maximum power dissipation is 10.6 W, so ventilation in a sealed enclosure should account for that heat load.