Breaking capacity class M delivers Icu=55kA at 415 V — sufficient for high-fault utility or transformer-fed distribution panels where fault current exceeds 50 kA. Overload protection Ir is adjustable from 440 A to 630 A; short-circuit protection Ii is fixed at 4 to 8 times In (2,520 A to 5,040 A). The N-conductor protection is set at 100%.
Deployment context
Designed for panel-mount installation in IEC distribution switchboards. The 4-pole configuration suits three-phase plus neutral applications, common in main incoming feeders or large sub-distribution boards. The 100% N-conductor protection is typical for systems where neutral loading mirrors phase loading — e.g., data-center PDUs or commercial kitchen equipment.