What this MCCB carries
The Siemens 3VA1132-5ED46-0AA0 is a SENTRON molded case circuit breaker, 4-pole, rated 32 A continuous at 40 °C with a TM210 thermal-magnetic release. The interrupting ratings climb to 187 kA at 240 V AC and 121 kA at 415 V AC, dropping to 75.6 kA at 440 V and 17 kA at 500 or 690 V. That 187 kA figure at 240 V means it handles high-fault service-entrance or distribution positions where available short-circuit current is substantial — not every MCCB in this frame size carries that kind of interrupting capacity.
Ratings that decide the fit
The TM210 release is a fixed thermal-magnetic type — no interchangeable trip units, no electronic adjustments. That simplifies spec-in for a BOM line where the 32 A rating is locked, but it also means you cannot field-adjust the continuous current. The 800 V rated insulation voltage (Ui) and 690 V AC operating voltage cover most 400/480 V distribution panels with headroom for 600 V class. Current derating is minimal through the temperature range: 32 A holds from 40 °C to 50 °C, then drops only 1 A per 5 °C step to 30 A at 70 °C. That flat curve matters when the breaker sits in a warm enclosure next to other heat sources — you are not losing a full frame size at 60 °C. Power loss is 10.6 W maximum — modest for a 4-pole 32 A MCCB, so internal enclosure temperature rise stays manageable without forced ventilation in most panel layouts.
Physical fit and environment
The breaker measures 101.6 mm wide by 130 mm tall by 70 mm deep. That 70 mm depth is the dimension that catches panel builders who are used to a shallower frame — check your gland-plate clearance and door swing before committing the cutout. Front IP40 means it is protected against tools and wires >1 mm, but not against water ingress; keep it inside the enclosure, not on the door. Operating temperature range is -25 °C to 70 °C; storage from -40 °C to 80 °C. That covers unheated warehouses and most plant-floor conditions without special derating.