The interrupting capacity varies by system voltage: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V. That spread tells you the breaker is sized for high-fault industrial distribution panels where the available short-circuit current at the bus is known — the 75.6 kA at 240 V covers most North American 240/120 V split-phase or 240 V three-phase services, while the 52.5 kA at 415 V suits European 400 V grids. The overcurrent release is a TM240 thermal-magnetic type — the '240' indicates the thermal trip element is calibrated for a 100 A frame with a magnetic short-circuit pickup adjustable around 240 A. The shunt trip (STL) is present, wired to the 3VA9688-0BL30 auxiliary trip unit, allowing remote tripping from a safety circuit or emergency-stop chain. Thermal derating is documented across the ambient range: the breaker carries 100 A continuously from 40 °C through 50 °C, then drops to 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, and 90 A at 70 °C.
The 76.2 mm width (3-inch footprint) is standard for a 3-pole MCCB in this frame size — it occupies three 25.4 mm module positions on a DIN rail or panel-mount plate. The 70 mm depth leaves clearance for rear bus connections and cable bending radius inside the enclosure.
