630 A MCCB with 187 kA interrupting capacity
Its interrupting capacity hits 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V — that covers most industrial service entrances and large feeder panels without needing a current-limiting upstream device.
Temperature derating matters at this frame size
As the panel warms up — and it will in a packed enclosure — the allowable current drops: 612 A at 45 °C, 593 A at 50 °C, 575 A at 55 °C, 557 A at 60 °C, 538 A at 65 °C, and 520 A at 70 °C. If your load is close to 630 A and the panel runs hot, factor in the derating or move to a larger frame. Maximum power loss is 162 W at rated current. That heat has to leave the enclosure — plan ventilation or a larger cabinet if this breaker sits alongside other high-current devices.
Dimensions are 110 mm deep, 138 mm wide, and 248 mm tall.