Its interrupting capacity reaches 75.6 kA at 240 V AC and 52.5 kA at 415 V AC — figures that govern fault-clearing in low-voltage distribution boards and motor control centers.
Interrupting capacity and temperature derating — the real selection numbers
The 75.6 kA at 240 V is the headline number, but the 52.5 kA at 415 V is what drives coordination in a 400 V distribution panel. At 440 V the rating drops to 32 kA, and at 500 V or 690 V it holds at 11.9 kA — so for a 690 V line, the available fault current must be verified against that lower ceiling. The 32 A continuous rating holds from 40 °C through 50 °C; above that it derates to 31 A at 55 °C and 60 °C, and to 30 A at 65 °C and 70 °C.
The 70 mm depth and 101.6 mm width match the standard SENTRON 3VA footprint, so it retrofits into existing DIN-rail or screw-mounted panel layouts without re-drilling. The 130 mm height leaves clearance for busbar connections above and below.