Built-in dimensions W 275 x H 425 x D 150 mm max. installation depth with built-in mounting plate 146 mm, with built-in DIN rail 135 mm box size 3 please order DIN rails, mounting plates or covers additionally trilaterally combinable 3 walls with metric knockouts for cable entry and assembly lid hinges attached with transparent, hinged lid lid fasteners for tool operation material: PC (polycarbonate) protection class: II colour: grey, RAL 7035