Its adjustable thermal-magnetic trip can be set between 600 A and 4800 A, making it suitable for main feeders or large motor branch circuits where the load current is known and fixed during commissioning. Breaking capacity is rated at 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 9 kA at 690 V. That is unusual — most MCCBs start to derate above 40 °C. Here the thermal curve is flat, so you do not have to upsize the frame for a hot panel.
Built-in undervoltage release
No auxiliary switch is included on this version.
Dimensions are 110 mm deep, 138 mm wide, and 248 mm tall. Depth of 110 mm leaves room for rear-connected busbars or a cable entry gland plate behind the breaker.
Maximum power loss is 66 W at rated current. That is moderate for a 400 A frame — plan for ventilation or spacing if multiple breakers are ganged in a sealed enclosure.