Panel fit and breaking capacity
The Siemens 3VA1132-5EF36-0AB0 is a SENTRON 3-pole molded case circuit breaker rated for 32 A continuous current, with a thermal-magnetic TM240 release. Its interrupting capacity hits 187 kA at 240 V, 121 kA at 415 V, and 75.6 kA at 440 V — that SCCR headroom means it clears high-fault bolted faults without upstream cascade in most distribution panels. Dimensions are 130 mm tall, 76.2 mm wide, and 70 mm deep, so it fits standard 3-pole MCCB panel cutouts and busbar spacing.
Thermal derating and ambient limits
Rated current holds at 32 A from 40 °C through 50 °C ambient. Above that, derating kicks in: 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. If your panel runs hot near the top of a sealed enclosure, factor that curve into the load schedule. Operating range is -25 °C to 70 °C; storage from -40 °C to 80 °C.
Selectivity and coordination note
The adjustable response time tr max is 1 s, which gives some room for downstream short-time delay coordination with smaller MCCBs or MCBs. No phase failure detection or voltage trigger on this variant — it is a straight line-protection breaker. For DC network applications, the manufacturer directs to the 3VA device manual for switching power values.