It's a 3-pole unit rated 100 A at 40 °C, with a breaking capacity of 75.6 kA at 240 V — meaning it can safely interrupt a fault current up to that level without welding its contacts or cascading upstream. That's the figure that decides if this breaker holds downstream of a transformer or a high-capacity bus. The frame is 70 mm deep, 76.2 mm wide, and 130 mm tall — a standard footprint for the 3VA1 series, so it drops into existing SENTRON panel layouts without re-drilling gland plates. Power loss maxes at 25 W, which keeps the heat inside the enclosure manageable for a 100 A frame. That means you can remotely trip the breaker via a control signal and get status feedback — common for emergency-stop circuits or remote disconnect in automated lines.
Above that, it starts to taper: 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C.
Breaking capacity across voltage — not just one number
The interrupting rating drops as line voltage rises: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V.