The 100 kA breaking capacity at 400 V (also rated 100 kA at 240 V, 500 V, and 690 V) means this breaker can safely interrupt fault currents up to that level without upstream fuses or cascading — a high-fault-capacity device for panels with large transformer or utility feeds. The Size S0 frame (45 mm wide) fits standard 45 mm DIN-rail slots, with 50 mm clearance required above and below for thermal dissipation and arc venting.
Fastening method accepts M4 screws for main contacts. Any mounting position is permitted. Clearance requirements: 50 mm upwards, 50 mm downwards, 30 mm at the side — zero forwards or backwards clearance needed, so it can sit flush against a backplate. Terminals accept 2× (1 to 2.5 mm²) solid or stranded, or 2× (2.5 to 10 mm²). Screwdriver shaft diameter 5 to 6 mm, Pozidriv size 2 tip. The S0 frame depth is 97 mm, width 45 mm, height 97 mm.