The MGN60913 is a C60N miniature circuit breaker from the Multi9 range, rated 63 A at 50 °C per EN/IEC 60947-2. The 4-pole configuration protects all phases plus neutral in a single 72 mm wide package, occupying 8 x 9 mm pitch spaces on a 35 mm DIN rail. Breaking capacity is 20 kA Icu at 240 V AC phase-to-phase, derating to 10 kA at 415 V and 6 kA at 440 V. The service breaking capacity Ics is 75 % of those values — 15 kA at 240 V, 7.5 kA at 415 V, 4.5 kA at 440 V. That means after clearing a fault at the Ics level, the breaker remains functional for continued service, not just a one-shot isolation event. For a distribution board with a 22 kA prospective fault current upstream, this breaker needs a current-limiting upstream device to stay within its rating.
The 72 mm width (8 x 9 mm pitches) fits standard distribution board grids. Tunnel-type terminals accept 1.5 to 35 mm² rigid or flexible conductors (with or without ferrules); strip length is 14 mm, torque to 3.5 N·m. The 63 A rating is at 50 °C; expect derating above that ambient. The toggle provides local ON/OFF indication and a contact position indicator for visual confirmation of isolation state.