It carries a continuous current rating of 40 A at 40 °C, and that rating holds flat through 50 °C before derating begins: 38.4 A at 55 °C, 37.6 A at 60 °C, 36.8 A at 65 °C, and 36 A at 70 °C. The interrupting capacity is what sets this variant apart: 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at both 500 V and 690 V.
Fit and integration — what the dimensions and auxiliaries mean for a panel
The breaker occupies 76.2 mm width (3 inches), 130 mm height, and 70 mm depth — a standard MCCB footprint that fits most DIN-rail or panel-mount enclosures without re-drilling. No communication function is built in, so this is a standalone thermal-magnetic breaker, not a power-monitoring device. Max power loss is 13.3 W, which matters for thermal management inside a sealed enclosure.