The unit includes a communication function, enabling integration with monitoring systems for remote status and power measurement.
Above that, current must be derated per the datasheet curve: 238 A at 55 °C, 225 A at 60 °C, 213 A at 65 °C, and 200 A at 70 °C. For a panel builder or site electrical engineer, this means the 250 A frame can serve a 250 A load only if the enclosure ambient stays under 50 °C; in a hot MCC room or outdoor cabinet, the actual ampacity drops.
The interrupting rating varies with system voltage, as evidenced by the specification: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 4.5 kA at 690 V. The minimum breaking capacity is listed as 375 A, and the maximum as 2 500 A.
Physical dimensions and panel fit
Dimensions: 86 mm depth, 105 mm width, 181 mm height. These are the envelope for DIN-rail or direct-panel mounting. An MRO planner or panel builder should verify the 105 mm width clears adjacent devices in a multi-breaker lineup.