Its 121 kA breaking capacity at 240 V handles high-fault utility feeds; at 415 V it still interrupts 75.6 kA, and at 690 V it holds 11.9 kA — enough for most industrial service-entrance or feeder applications.
The 25 A current rating holds flat from 40 °C to 50 °C (–), then derates to 24 A at 55 °C and 23 A at 70 °C (–). The 3-pole frame handles three-phase loads — motor feeders, lighting, or general distribution — and the shunt trip plus two auxiliary switches allow remote tripping and status feedback without an external control relay. Maximum power loss is 8.5 W — low enough that ventilation in a standard IP2X enclosure is adequate. The 70 mm depth, 76.2 mm width, and 130 mm height (–) fit the standard SENTRON 3VA mounting footprint, so it swaps into existing panel layouts without re-drilling.
Integration notes
The shunt trip (STL) requires a separate control voltage — verify polarity and timing per the wiring diagram. The two auxiliary switches (HQ) are pre-installed; they change state with the breaker mechanism, not the handle, so they report true contact position.