What the ratings mean for fit
The Siemens SENTRON 3VA1032-4ED36-0HH0 is a 3-pole molded case circuit breaker (MCCB) rated 32 A continuous at 40 °C, with a thermal derating curve that holds 32 A through 50 °C, then drops to 31 A at 55–60 °C and 30 A at 65–70 °C — so in a warm panel you lose only 2 A, not a full frame size. Breaking capacity runs 121 kA at 240 V AC, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V, which covers most industrial fault-current scenarios up to the 690 V tier. Rated insulation voltage is 800 V, so it suits 480/277 V and 600 V systems with headroom.
Panel integration and dimensions
Mounts on a DIN rail or panel-mount base. Dimensions are 130 mm height, 76.2 mm width (3 in), 70 mm depth (2.76 in) — fits a standard 3-pole MCCB footprint. Power loss at full load is 10.6 W maximum, so no special ventilation required in a typical enclosure. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C.