It is part of the SIRIUS family, a modular system of industrial controls that share a common DIN-rail mounting and accessory platform. No ground-fault detection on this variant, so if that's needed, you'd add a separate module or specify the G version.
Depth is 75 mm, height 90 mm. Clearance requirements: 20 mm upwards, 20 mm downwards, 9 mm to the side, zero forwards or backwards. That 9 mm side gap is tight — adjacent breakers can sit nearly flush. Screw-type terminals on the main circuit accept 2× (0.5…1.5 mm²) or 2× (0.75…2.5 mm²) solid or stranded copper. Torque to M3 screw spec.
Rated breaking capacity is 100 kA at 240 V, 400 V, 500 V, and 690 V AC. At 690 V, the spec calls for a gL/gG 4 A backup fuse to limit let-through energy — without it, the breaker may not clear a bolted fault at that voltage. This makes it suitable for high-fault panels common in industrial distribution.