It carries a breaking capacity of 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 7.5 kA at 690 V — covering the voltage range from low-voltage switchgear up to 690 V industrial supplies. The trip unit is adjustable between 600 A and 4 000 A, so this frame can be set to protect a range of downstream loads without swapping the breaker body.
Thermal derating — what the continuous current actually means in your panel
Above that, the breaker must be derated: 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C.
Breaking capacity — selectivity and SCCR headroom
The drop to 75.6 kA at 500 V and 7.5 kA at 690 V means you need to verify the available fault current at your specific system voltage; at 690 V the breaker is limited to relatively low-fault installations.
The breaker includes a communication function for remote monitoring and trip indication.
