630 A MCCB with 242 kA interrupting capacity
The continuous current rating drops with ambient temperature: 630 A at 40 °C, 600 A at 45 °C, 570 A at 50 °C, 540 A at 55 °C, 510 A at 60 °C, 480 A at 65 °C, and 450 A at 70 °C. Physical footprint is 138 mm wide, 248 mm tall, 110 mm deep, fitting standard MCCB mounting patterns. Maximum power loss is 164.5 W, which factors into enclosure thermal calculations.
The interrupting capacity is voltage-dependent: 242 kA at 240 V, 187 kA at both 415 V and 440 V, 121 kA at 500 V, and 9 kA at 690 V. The trip unit has a minimum setting of 945 A and a maximum of 5670 A, giving a wide adjustment range for coordinating with downstream breakers.