The C60H4P63AC is a 4-pole miniature circuit breaker from the Multi9 C60 range, rated 63 A at 30 °C with a C curve (magnetic trip 5–10 × In). The 10 kA Icn at 230/400 V AC (EN 60898) is the standard interrupting rating for a residential or light commercial distribution board; the higher Icu ratings under IEC 60947-2 (up to 50 kA at 250 V DC 4P) tell you it can also serve in an industrial panel where the prospective fault current is higher, as long as the service breaking capacity (Ics) is coordinated downstream. The 4-pole version isolates all live conductors in a three-phase plus neutral system — common for TN or TT earthing schemes where you want full disconnection.
The 72 mm width (8 × 9 mm pitches) fits standard distribution board cutouts. The toggle provides local ON/OFF indication and a contact position indicator confirms isolation status — useful for lockout/tagout verification. Separate earth-leakage block (Vigi) can be added on the downstream side if RCD protection is needed.