It carries a 25 kA interrupting rating at 400 V AC and is UL 489 / CSA C22.2 No. 5 listed, making it suitable for North American panel builds where branch-circuit protection is required.
At 500 V the rating drops to 5 kA, and at 690 V to 2 kA, so if your line voltage is higher than 400 V, verify the available fault current is within these limits. The gG fuse backup ratings (63 A at 400 V, 50 A at 500/690 V) define the maximum upstream fuse for selectivity; exceed those and the breaker may not coordinate. Rated operational voltage spans 20...690 V, covering most low-voltage industrial supplies. The 5.5 kW motor rating at 230 V gives a quick sizing reference for direct-on-line motor starting at that voltage.
Snap-on onto 35 mm DIN rail per DIN EN 60715 — no tools needed for the rail mount, though the screw-type terminals for the main circuit require a Pozidriv size 2 tip (shaft diameter 5 to 6 mm). Clearance requirements: 70 mm above and below, 30 mm to the side, 0 mm forward and backward — so you can butt it against the back panel or a busbar without extra spacing.