Spelsberg Terminal block enclosure, polystyrene, with standard rails NS 35, incl. 8 attachment bushes M20, seal range 8 - 13.5 mm, IP54, 2 attachment bushes M25, seal range 9 - 18.5 mm, IP54, 1 attachment bush M32, seal range 13 - 23 mm, IP54, without terminals, with NS 35