63 A, C-curve, 1-pole — panel fit and breaking capacity
Breaking capacity is 4.5 kA per EN 60898 and 6 kA per IEC 60947-2; the higher IEC figure applies when the breaker is used in industrial distribution rather than final circuits. UL 1077 supplementary-protector rating is 5 kA, so it qualifies as a recognized component in North American panels where a full branch-circuit MCCB is not required. At 18 mm wide and 76 mm deep, this breaker occupies a single DIN-rail module.
DIN-rail integration and environmental limits
Sealable terminals (padlockable) are standard, allowing the panel builder to lock out the breaker for lockout/tagout compliance without an add-on accessory.