The interrupting capacity reaches 75.6 kA at 240 V, stepping down to 52.5 kA at 415 V and 32 kA at 440 V — figures that matter for fault-current coordination studies on the secondary side of a distribution transformer.
The 80 A rating holds flat from 40 °C through 50 °C, then derates to 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C. No adjustable magnetic pickup, no electronic trip — it's a straightforward, field-proven design for standard feeder and branch-circuit protection where coordination is handled by selective sizing upstream. Interrupting ratings are given at multiple voltages: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V.
If you need remote tripping or ground-fault sensing, you'd step up to a different variant in the 3VA family with the appropriate accessories.