That makes it a straight short-circuit protector for circuits where overload protection is handled upstream or by the load itself. For UL 1077 / CSA C22.2 No. 235 applications, the interrupting rating is 5 kA at 400 V AC, so verify your available fault current if the panel carries a UL/CSA sticker. On DC circuits, it is rated 72 V maximum, so it works in 48 V or 60 V DC control buses but not on a 110 V DC battery bank.
Two-pole (2P) design in a 36 mm wide housing — that is 2 modular width units on a DIN rail.
Rated for use in mechanical engineering and industrial environments per the manufacturer's suitability statement. The product function code per DIN EN 61346-2 is F (protective device).