IP55 square boxes. 105 x 105 x 55 mm. With 7 pre-drilled holes. RAL 7035 gray color. Lid closure with 14-turn captive and plumbable insulating screws with 0 1 indication. Possibility of hanging the lid on the box, in the waiting position. Wall fastening secured by 2 or 4 internal points for 5 mm diameter plugs max, or at the 34 corners outside the wiring volume for 4 mm diameter plugs.