It carries 75.6 kA interrupting capacity at 240 V and 52.5 kA at 415 V, so it handles high-fault utility feeds and transformer secondaries without cascading upstream.
Key Ratings & Fit
The 50 A continuous rating holds flat from 40 °C to 50 °C, then derates to 45 A at 70 °C — a 10 % drop across the full operating range, so a panel at 60 °C still gets 47 A. The interrupting curve is steep: 75.6 kA at 240 V drops to 7.5 kA at 690 V. The shunt trip (STL) auxiliary release is built in; the auxiliary contact version carries 2 HQ switches (form C).
Integration
Footprint is 76.2 mm wide by 130 mm tall by 70 mm deep — fits a 4-inch deep enclosure with room for finger-safe gland plates. The 2 auxiliary switches (HQ type) are pre-wired; wire them to the PLC digital input for breaker status feedback.