63 A MCCB with TM210 release and undervoltage trip — panel fit and breaking performance
Its breaking capacity runs 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 690 V — so the spec you match depends on your system voltage. The TM210 release means thermal protection for overloads and magnetic for short circuits, tuned for line protection duty. An undervoltage release (UVR) is built in, which drops the breaker if supply voltage falls below a threshold — common for emergency-stop or mains-monitoring circuits.
Current derating across temperature — what 63 A really means in a warm panel
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.
Integrated auxiliary trip and basic switch — field-replaceable modules
That means if an auxiliary switch fails in the field, you order the 3VA9608-0BB24 module rather than replacing the whole breaker. The overcurrent release is a TM210 design; no electronic trip unit, no communication function, no phase-failure detection. It's a straight thermal-magnetic line-protection breaker with undervoltage release.