What it is and what it does
The Siemens 3VA1132-5EF36-0AC0 is a SENTRON molded case circuit breaker (MCCB) built for line protection — the kind of main or feeder breaker you'd find in a distribution panel feeding motor control centers or lighting circuits. It's a 3-pole unit with a thermal-magnetic trip (TM240) and no undervoltage release or ground-fault monitoring, so it's a straight-ahead overcurrent protector, not a specialty device.
Ratings that matter for the panel
Rated 32 A continuous at 40 °C through 50 °C — that's the full-tilt current without derating — and it holds 31 A up to 60 °C, then eases to 30 A at 70 °C. Out here in the grease, that means you can load it to 32 A in a warm panel without sweating the trip curve. Breaking capacity is the headline: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. That's a lot of fault-clearing muscle for a 32 A frame — it'll interrupt a dead short without the arc flash climbing upstream. Rated insulation voltage is 800 V, so it's comfortable on 690 V systems. Dimensions are 70 mm deep, 76.2 mm wide, 130 mm tall — a standard 3-pole MCCB footprint that drops into a SENTRON panelboard or standalone enclosure without surprises. Power loss tops out at 10.6 W, which is modest for a 32 A breaker — keeps the panel's thermal budget comfortable. Operating temperature range from -25 °C to 70 °C means it'll survive a hot summer in a non-climate-controlled plant room.