... .5/85/38mm Screw nominal diameter:M5 Poles:4P TB Terminal Block TB4504TB series adopt plate-type,screw-clamping,low base, sealed ... : 3, 4, 5, 6, 10, 12Housing Material: polyphenyl or polycarbonateContact: copper pieces, tin plated brass screwsCover: reinforced plastic, ensures heat-resistance ... OT, UT terminalsSpecifications:Drawings: TB type 45A 3Poles 600V Fixed Terminal Block TB4504