The Siemens SENTRON 3VA1132-6GE42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for 32 A continuous, built for line protection duty. It carries a TM220 thermal-magnetic overcurrent release — the thermal element handles overloads, the magnetic element clears short-circuits. Breaking capacity is 220 kA at 240 V, dropping to 154 kA at 415 V and 121 kA at 440 V; at 500 V and 690 V it still holds 17 kA. That spread means it handles high-fault utility feeds on the low-voltage side without cascading upstream.
Thermal performance and panel fit
Full 32 A rating holds through 50 °C ambient; at 55 °C it derates to 31 A, and at 70 °C it's still delivering 30 A. That's a shallow derate curve — useful if the breaker sits near other heat sources in a crowded enclosure. Power loss at rated load is 10.6 W, which matters for thermal calculations inside a sealed panel. Dimensions are 70 mm deep, 101.6 mm wide, and 130 mm tall — a compact 4-pole footprint for DIN-rail or direct-mount integration. The front face carries IP40 protection, meaning it's sealed against solid objects over 1 mm but not against water ingress; keep it inside a panel.