Breaking capacity hits 220 kA at 240 V AC, 154 kA at 415 V, and 121 kA at 440 V, which puts it in the high-interrupting class for industrial mains feeding large MCCs or transformer secondaries where fault current is stiff.
At 415 V the 154 kA interrupting rating means this breaker can be applied downstream of a transformer with minimal upstream coordination effort — it clears a bolted fault before the main breaker sees it, preserving selectivity.
At 55 °C it derates to 48 A, at 60 °C to 47 A, at 65 °C to 46 A, and at 70 °C to 45 A.
Integrated undervoltage release
When line voltage drops below the release threshold, the UVR trips the breaker open. That is standard for applications where a brownout must disconnect loads (conveyor drives, compressors) to prevent re-acceleration surge when power returns. No auxiliary contact is included on this order code; if you need a status signal back to the PLC, add a separate auxiliary switch block.
The breaker measures 76.2 mm wide (3-pole), 130 mm tall, and 70 mm deep.