63 A MCCB with high interrupting capacity for line protection
Interrupting performance across voltage levels
This breaker's interrupting capacity is rated at 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V. The sharp drop at 690 V tells you this unit is optimized for 240–500 V distribution — at 690 V the fault current capability is much lower, so verify your available fault current if the service voltage is at the high end.
Thermal performance and ambient derating
That simplifies panel design: you don't have to oversize for a hot enclosure.
Ground-fault monitoring and communication
Maximum power loss is 4 W, manageable for dense panel layouts.
