The 4-pole configuration handles three-phase plus neutral, common in IT or TN-S systems where the neutral needs overcurrent protection.
This MCCB delivers 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V. For a 690 V line, the 3.7 kA rating still covers most motor branch circuits, but verify your available fault current before specifying.
Thermal performance and ground-fault monitoring
The ground-fault monitoring uses summation current formation on L+N conductors, meaning it measures the vector sum of phase and neutral currents to detect leakage. Communication function is onboard, so it can report trip events and status to a PLC or BMS over the panel bus.
Four poles mean the breaker occupies the full width of a 4-module DIN-rail space — plan your busbar takeoffs accordingly.