What the ratings mean for fit
The Siemens SENTRON 3VA1132-6EF36-0BC0 is a 3-pole molded case circuit breaker (MCCB) rated for a continuous current Iu of 32 A. That 32 A holds flat from 40 °C through 50 °C — no derating needed in a warm panel. Above 50 °C it steps down: 30.72 A at 55 °C, 30.08 A at 60 °C, 29.44 A at 65 °C, and 28.8 A at 70 °C. The TM240 overcurrent release handles the thermal-magnetic trip curve for line protection; no voltage trigger or phase failure detection is built in. Breaking capacity is the headline number that decides selectivity in a fault study. This MCCB clears 220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 690 V. At 415 V the 154 kA figure is high enough for most industrial main or feeder positions without cascading upstream — it lets you coordinate downstream branch breakers with confidence. The rated insulation voltage Ui is 800 V, so the breaker is rated for 690 V line-to-line systems.
Panel integration and wiring
The 3VA1132-6EF36-0BC0 mounts in a standard MCCB footprint: 76.2 mm wide, 130 mm high, 70 mm deep. IP40 on the front means it keeps out tools and wires but is not sealed against washdown — install inside a panel enclosure. It ships with 2 auxiliary switches (HQ type) and an undervoltage release (UVR) already integrated; the auxiliary trip module is order code 3VA9608-0BB11. No communication function or ground-fault monitoring is built in, so if you need those, they are external add-ons. Mechanical endurance is rated at 15 000 operations — suitable for switching duty where the breaker is used as a disconnect, not a daily contactor. Ambient operating range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. The reference code per DIN EN 81346-2 is Q.