It combines a circuit breaker and overload relay in one device, with phase failure detection built in. Rated 6.3 A at both 480 V and 600 V, it carries a 100 kA short-circuit current rating (SCCR) at 400 V and 500 V — meaning it safely interrupts faults up to that level without cascading upstream.
Depth is 97 mm, height 106 mm. Mounting position is any, which helps when you're packing a tight gland plate. Terminals are spring-loaded, accepting 2x (0.5 to 2.5 mm²) solid or stranded wire. No screw torque to verify — just strip 8 mm and push in. The clearance requirements: 50 mm upwards and downwards, 30 mm at the side for heat dissipation and arc clearance.