It interrupts faults up to 6 kA per EN 60898, or 5 kA per UL 1077 and CSA C22.2 No. 235, which covers the bulk of commercial and light industrial panelboard duty.
The C-curve means the magnetic trip fires at 5 to 10 times rated current — 40 to 80 A for this 8 A unit — which is the standard choice for motor-starter, lighting, and general branch-circuit protection where moderate inrush is expected. The 8 A rating holds at 35 °C; at 40 °C it derates to 7.35 A, at 45 °C to 7 A, at 50 °C to 6.63 A, and at 55 °C to 6.25 A. Operating temperature range spans -40 °C to 75 °C, with humidity limits of 95% up to 55 °C, 55% up to 70 °C, and 35% up to 75 °C.
Deployment context
The 70 mm installation depth and 76 mm overall depth fit standard 80 mm-deep enclosures.