Its interrupting capacity hits 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V — figures that give you headroom for high-fault panels without cascading upstream.
Thermal derating and what it means for a hot panel
Above that, it derates linearly: 60.48 A at 55 °C, 59.22 A at 60 °C, 57.96 A at 65 °C, and 56.7 A at 70 °C. If your panel sits near a furnace line or in a non-ventilated enclosure pulling 60 °C internal air, you lose roughly 4 A — about 6% — from the nameplate. The operating range tops out at 70 °C, which is the same as the maximum storage temperature; storage alone can go to 80 °C. For a rolling-mill aux panel where radiant heat from the strip is a fact of life, that 56.7 A floor at 70 °C still gives you a solid 60 A feeder without oversizing the frame.
Auxiliary contacts and trip signaling
The integrated shunt trip (STL) release, order code 3VA9688-0BL32, allows remote tripping from an E-stop or safety relay circuit.