Its interrupting capacity reaches 187 kA at 240 V, 121 kA at 415 V, and 75.6 kA at 440 V, tapering to 17 kA at 500 V and 690 V — covering most industrial distribution panels and motor branch circuits up to those fault levels. The 50 A rating holds steady from 40 °C through 50 °C ambient, then derates gradually to 45 A at 70 °C — useful when the breaker sits in a warm enclosure near other heat sources.
The 76.2 mm width (3 in) and 70 mm depth (2.76 in) let it land in a standard MCCB slot on a DIN rail or panel-mount base. Height is 130 mm (5.12 in). Maximum power loss is 14.6 W — plan ventilation if grouping several breakers in a sealed cabinet.