It breaks 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 690 V — the interrupting rating drops as voltage climbs, which is typical for MCCBs and means you size it to the available fault current at the actual line voltage.
Thermal derating — what the 63 A rating really means
At 55 °C it derates to 60.48 A, at 60 °C to 59.22 A, at 65 °C to 57.96 A, and at 70 °C to 56.7 A. The rated insulation voltage is 800 V, and the operating temperature range spans -25 °C to 70 °C, with storage from -40 °C to 80 °C — wide enough for most indoor industrial environments but verify the low end if the panel sits in an unheated space.
Release and auxiliary options on this variant
The UVR will trip the breaker if control voltage drops, which is useful for emergency-stop chains or undervoltage protection on motor feeders. The integrated auxiliary trip is a separate order code (3VA9608-0BB25) — not included on the breaker. If you need a shunt trip or auxiliary contacts, you add them as field-installable accessories.
No official successor has been issued for this order code, which is consistent with an active catalog line.