Line protection MCCB with ground-fault monitoring
The part carries a communication function (likely via a plug-in module or bus interface) and integral ground-fault monitoring using summation current formation on L+N conductors, so it handles both overcurrent and ground-fault protection in one device, reducing panel wiring.
Rated breaking capacity is 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V. At 400/415 V, the 121 kA rating covers most transformer-fed industrial services with high available fault current.
Thermal derating and ambient range
Maximum power loss is 5.4 W, manageable for thermal budgeting in a crowded DIN-rail panel.
Dimensions are 181 mm height, 140 mm width, 86 mm depth. The 86 mm depth fits shallow enclosures; the 140 mm width for a 4-pole MCCB is standard. Verify the mounting footprint against the existing backplate or DIN-rail adapter.