What this MCCB carries
The Siemens 3VA1132-6EF36-0KA0 is a 3-pole SENTRON molded case circuit breaker for line protection, rated 32 A continuous at 40 °C and carrying a 220 kA interrupting capacity at 240 V — that's the figure that governs fault clearance on a 240 V distribution bus. At 415 V it still interrupts 154 kA, and at 690 V it holds 17 kA, so it's sized for industrial switchgear where high available fault current is a given. The TM240 thermal-magnetic release handles overload and short-circuit protection; the built-in shunt trip (STL) lets you remotely trip the breaker from a PLC or emergency-stop circuit — no separate undervoltage release fitted. Rated insulation voltage is 800 V, so it's comfortable on 480 V or 600 V class systems.
Panel fit and footprint
The breaker measures 76.2 mm wide by 130 mm tall by 70 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures without re-drilling the gland plate. Depth of 70 mm leaves room for rear bus connections in a shallow cabinet. Power loss is 10.6 W maximum, so thermal rise inside a sealed enclosure is manageable; no forced ventilation required for a single unit in a typical panel.
Thermal derating and operating range
Rated 32 A from 40 °C through 50 °C, then derates to 31 A at 55–60 °C and 30 A at 65–70 °C. That means in a hot panel — say near a drive or transformer — you lose 2 A off the nameplate. The operating temperature range is -25 °C to 70 °C, storage from -40 °C to 80 °C.