Galvanised steel housing, including black control button Power rating: 50 A / 12 V, (terminals 17, 19), 27 A / 24 V (terminals 17, 19), 12 A / 12 V (terminal 50a), 9 A / 24 V (terminal 50a), Fixing: with hexagon nut M10 x 1 Mounting: Ø 10.5 mm For wall thickness up to 3 mm Switch positions: control button must be held in position 1 (preheat) and 2 (start), automatically returns to position 0 (off), connection: screw terminals