The MGN60910 is a 4-pole C60N miniature circuit breaker from the Multi9 range, rated 32 A at 50 °C per EN/IEC 60947-2. The 20 kA Icu at 240 V AC phase-to-phase tells you the maximum fault current it can safely interrupt once; the Ics is 75% of that (15 kA), meaning after a 15 kA fault you can re-close and keep running. At 415 V the breaking capacity drops to 10 kA, and at 440 V to 6 kA — so if your line-to-line voltage sits above 240 V, the available fault current at that panel must be lower.
The 72 mm width (8 x 9 mm pitches) fits a 4-pole slot in a Multi9 comb-busbar system; the busbar can land top or bottom. Tunnel terminals accept 1.5 to 35 mm² rigid or flexible (with or without ferrules), torqued to 3.5 N·m. Strip length is 14 mm. IP20 rated, so it lives inside a closed enclosure — no washdown exposure.
Suitable for isolation — the contact position indicator gives a visible gap when the toggle is OFF. The separate earth-leakage block (Vigi add-on) clips onto the same DIN rail footprint if you need ground-fault protection downstream.