The Siemens SENTRON 3VA1032-4ED36-0JC0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current of 32 A at 40 °C and derating to 30 A at 70 °C. It breaks faults up to 121 kA at 240 V, 75.6 kA at 415 V, and 11.9 kA at 500 V and 690 V — the interrupting capacity drops with system voltage, so size the upstream coordination for the available fault current at your line voltage.
Ratings and fit
The 32 A rating holds flat from 40 °C through 50 °C, then steps down to 31 A at 55–60 °C and 30 A at 65–70 °C. That thermal curve matters if the breaker lives in a warm enclosure — you keep full ampacity up to 50 °C, which covers most ventilated panels. Rated insulation voltage is 800 V, so it's suitable for 480/277 V and 600 V systems with margin. The breaker includes a shunt trip (STL) release and two HQ auxiliary switches, but no undervoltage release, no ground-fault monitoring, and no communication function — it's a straight line-protection device, not a smart breaker. Maximum power loss is 10.6 W — modest enough that ventilation in a standard panel handles it, but if you're packing multiple breakers in a sealed enclosure, sum the losses and check the thermal rise.
Physical fit
Dimensions are 130 mm high, 76.2 mm wide, and 70 mm deep — a 3-inch wide footprint that matches the standard SENTRON 3VA frame. It mounts on a DIN rail or panel-mount base; the 70 mm depth leaves clearance for wiring and auxiliary accessories behind the panel door.