The SENTRON 3VM1132-3ED42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated 32 A at 40 °C, with a TM210 thermal-magnetic overcurrent release. It delivers 76 kA interrupting capacity at 240 V AC and 53 kA at 415 V AC — figures that govern its fault-clearing capability in a distribution panel. The IP40 front protection means the breaker face is sealed against solid objects over 1 mm, but the enclosure itself must provide the overall panel ingress rating.
Interrupting capacity and thermal derating
Breaking capacity drops with system voltage: 76 kA at 240 V, 53 kA at 415 V, 32 kA at 440 V, and 12 kA at 500 V. These are the symmetrical RMS values the breaker can safely interrupt under fault conditions without welding or arc propagation. The continuous current rating holds at 32 A from 40 °C through 50 °C, then steps down to 31 A at 55 °C and 60 °C, and 30 A at 65 °C and 70 °C. That derating curve matters if the breaker sits in a warm cabinet — the 30 A ceiling at 70 °C is the hard limit, not a suggestion.
Dimensions and panel fit
The breaker occupies 101.6 mm width, 130 mm height, and 70 mm depth. That 70 mm depth is the dimension from the mounting surface to the front of the breaker — relevant when planning gland-plate clearance or door clearance in a shallow enclosure. The 4-pole footprint matches standard MCCB cutouts for 100 A frame sizes; verify the mounting hole pattern against the existing backplate if replacing a different brand.