Spelsberg Terminal block enclosure, polystyrene, light grey, similar to RAL 7035, incl. 4 attachment bushes M20, seal range 8 - 13.5 mm, IP54, 1 attachment bush M25, seal range 9 - 18.5 mm, IP54, with 7 screw terminals 4 mm², (type Weidmüller WDU 4)