Rated 63 A at 40 °C and tripping at 30 mA residual current, it provides personnel protection (30 mA is the standard for shock protection) while handling the full load of a 63 A subfeed. The short-time delayed design (Type F inherently includes a short delay) prevents nuisance tripping from transient leakage that occurs when equipment starts up.
The 63 A rating holds at 40 °C and 45 °C ambient, then derates linearly: 60.48 A at 50 °C, 57.96 A at 55 °C, 55.44 A at 60 °C, 52.92 A at 65 °C, and 50.4 A at 70 °C. The 10 kA short-circuit current rating (SCCR) means the device safely interrupts faults up to that level without welding contacts or rupturing; under EN 60898 and IEC 61008-1 the rated breaking capacity is 0.8 kA, which is the standard for domestic and light commercial RCCBs. The surge current resistance of 3 kA and let-through current of 7 500 kA (likely a typo in the source — should be 7.5 kA) indicate it withstands lightning-induced surges and high-energy faults.
Snaps onto a DIN rail (REG profile) and occupies 2.5 width units. Installation depth is 70 mm.
The device carries overvoltage category III and is finger and back-of-hand safe. It is silicon-free.