The S0 frame size — 45 mm wide, 119 mm tall, 97 mm deep — fits standard 45 mm slot spacing on a DIN rail, so it occupies one 45 mm module. Clearance: 50 mm above and below, 30 mm to the side, zero forward or backward. That means you can pack adjacent breakers tight side-to-side, but need vertical breathing room for cable entry and heat dissipation.
Breaking capacity — the number that matters
Rated breaking capacity is 100 kA at 240 V, 400 V, and 500 V AC; at 690 V it drops to 10 kA.
Thermal and environmental range
Termination and wiring
Main current circuit uses spring-loaded terminals — no screw torque to check, but you need a 3 mm diameter screwdriver shaft (3.0 x 0.5 mm tip) to release the spring. No ground-fault or phase-failure detection built in; this is a straight thermal-magnetic breaker for the motor branch.