Motor protection circuit breaker for DIN-rail panels
It occupies a 45 mm wide footprint on the rail, with a depth of 97 mm and height of 97 mm, leaving 50 mm clearance above and below and 30 mm to the side for cooling and wiring access. Breaking capacity is 100 kA at 400 V AC (also at 240 V, 500 V, and 690 V AC), so it can safely interrupt a bolted fault on a high-capacity distribution panel without cascading upstream.
Mounting position is any, but the 50 mm upwards and downwards clearance must be maintained for arc quenching. Main circuit terminals accept solid or stranded wire: 2×(0.75…2.5 mm²) or 2×4 mm², terminated with M3 screws. The screw-type terminal design is standard for panel wiring — no special crimp tool needed. The part is rated for use at supply voltages from 20 V to 690 V, covering most low-voltage motor control panels.