The Siemens 3VA1132-3EF36-0KH0 is a SENTRON molded case circuit breaker (MCCB) for line protection, rated 32 A continuous at 40 °C ambient and carrying a 3-pole, 75.6 kA interrupting capacity at 240 V. Breaking capacity drops as voltage climbs: 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V.
The 32 A rating holds from 40 °C through 50 °C, then derates to 31 A at 55 °C and 30 A at 70 °C. The supplied basic switch carries order code 3VA11323EF360AA0; auxiliary switch config is 2 aux + 1 trip alarm (HQ), and a shunt trip (STL) is built in as the auxiliary release. Power loss is 10.6 W maximum — modest for a 32 A MCCB, but in a sealed, non-ventilated enclosure with several breakers side by side, that heat adds up.
What's on the van?
If you're swapping a failed MCCB on site and the panel was built around a 5SQ2370-2YA05 or similar 32 A 3-pole frame, this 3VA1 drops into the same DIN-rail or backplate footprint — same pole count, same 32 A rating, same 75.6 kA class at 240 V. No rewiring needed if the lug type matches; just confirm the shunt trip and aux switch wiring before you button it up.