630 A MCCB with 187 kA interrupting at 240 V
Its interrupting capacity reaches 187 kA at 240 V, dropping to 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 9 kA at 690 V — figures that govern its fault-clearing capability at the point of common coupling. The 630 A rating is thermally calibrated: at 40 °C ambient it carries the full 630 A, derating to 520 A at 70 °C.
Panel integration and physical fit
The 138 mm width is the critical dimension for DIN-rail or mounting-plate spacing.
