MCCB for line protection — 25 A, 3-pole, high interrupting capacity
Its interrupting capacity reaches 330 kA at 240 V, tapering to 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V — the steep drop at 690 V means this breaker is best applied on 240–500 V systems where fault currents are high.
Ground-fault monitoring and thermal performance
This MCCB includes summation-current ground-fault monitoring on the line conductor — it senses imbalance across all poles, so it can trip on leakage without needing a separate GFCI module. Maximum power loss is 0.6 W, negligible for panel heat budgeting.
No undervoltage release and no communication function means this is a straight thermal-magnetic breaker; trip indication is not provided, so plan for an external status lamp or PLC input if remote trip signaling is needed.