It's a 3-pole unit rated 100 A continuous at 40 °C, with a breaking capacity of 220 kA at 240 V AC — that's the short-circuit current it can safely interrupt at that voltage level, which matters for fault clearing in high-fault-capacity installations like industrial mains or transformer secondaries.
Breaking capacity drops as voltage rises: 220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 500 V and 690 V. The breaker is rated for use on 50/60 Hz systems. Current rating holds at 100 A from 40 °C through 50 °C ambient, then derates to 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. Maximum power loss is 27.5 W, which contributes to enclosure heat rise.
Physical fit and integration
The breaker comes with two auxiliary switches (HQ design) and the undervoltage release pre-installed. The supplied basic switch order code is 3VA11106EF360AA0, which is the core switching mechanism inside the assembly.