Its interrupting capacity is 242 kA at 240 VAC, 187 kA at 415/440 VAC, 121 kA at 500 VAC, and 3.7 kA at 690 VAC — the 240 V figure is the headline rating, but the 415 V value is what governs in most European 400 V-class installations. The breaker carries a full complement of auxiliary functions: 2 auxiliary switches plus a trip alarm switch (HQ design), and an undervoltage release (UVR) for coordinated load shedding or safety disconnects.
The adjustable thermal-magnetic trip range spans 95 A minimum to 756 A maximum, covering motor and feeder protection settings within that window. Maximum power dissipation is 6.5 W, which keeps heat load low enough for dense panel layouts without forced ventilation.
Deployment context
The 3-pole form factor fits standard SENTRON busbar adapters and plug-in bases. The undervoltage release allows integration into safety circuits or emergency-stop chains — when control voltage drops, the breaker trips, removing power from downstream loads.