The TG 40 aluminum housing is equipped with two Pg13,5 cable screw connections positioned opposite each other on either side. The housing cover is attached to the base using four non-rusting and captive screws.TG 40 is supplied with DIN rail NS 35/7.5. On the DIN rail, five sections of 17.5 mm width each are available for the installation of protection devices. Degree of protection: IP65. IEC 529/EN 60529/DIN VDE 0470-1. Installation width 5 div.