Kaiser 1055-04 switch box, flush-mounted, 40.5 mm deep
Device box without device screws, with 4 screw domes and 2 expansion claw fields, pipe entries with break-out openings for cables and DIN EN pipes 20/25 mm (2 x M20/M25 in both nozzles, 2 x M20 and 2 x M25 in the side wall, 1 x M20 in the box base)