Terminal block housing, with protection class IP54/IP66, nominal cross-section 4mm², Ui=400V AC, polycarbonate, internal fastening points, for installations in industrial environments and protected outdoor areas, equipped with 50 screwless terminals 4mm³ (type Weidmüller ZDU 4)Dimensions: 360 x 254 x 111mmIncluded accessories: 18 mounting sockets IP54 M20 sealing range 8-13.5mm, 4 mounting sockets IP54 M25 sealing range 9-18.5mm, 2 mounting sockets IP54 M32 sealing range 13-23mm, 1 mounting socket IP54 M40 sealing range 17-30mm