Rated 40 A continuous at 40 °C ambient, it holds that rating up to 50 °C before derating to 38.4 A at 55 °C and 36 A at 70 °C — useful if the breaker sits in a warm enclosure or near other heat sources. Breaking capacity hits 121 kA at 240 V AC and 75.6 kA at 415 V AC, dropping to 52.5 kA at 440 V and 11.9 kA at 500/690 V. The shunt trip allows remote tripping from a PLC or emergency-stop circuit — common in machine-tool or conveyor line panels where a safety contactor alone isn't enough. The auxiliary switches provide status feedback (open/closed) for the control system. The basic switch variant is order code 3VA10404ED320AA0, but this unit includes the release and auxiliaries already mounted. Dimensions are 70 mm deep, 76.2 mm wide, and 130 mm high — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures without rework.
Compliance documentation
The SENTRON series carries UL, CSA, CE, and IEC certifications per standard Siemens documentation. RoHS and REACH declarations are available from the manufacturer.