Rated 50 A continuously at 40 °C (derates to 45 A at 70 °C), it handles the full load current of a feeder or branch circuit without nuisance tripping up to that ambient. At 415 V it still breaks 52.5 kA, and at 690 V it holds 7.5 kA, so it fits both 400 V and 690 V systems with adequate SCCR headroom.
Fit and integration — panel space and mounting
The breaker measures 70 mm deep by 76.2 mm wide by 130 mm high, a standard SENTRON 3VA frame size that drops into a DIN-rail or panel-mount cutout without custom bracketry. Depth of 70 mm leaves clearance for rear-mounted accessories and wiring — check gland-plate depth if the panel is shallow.