Electrical installation 79Nuts with bonded coating can be used as an alternative to uncoated stainless steelnuts.Connection typeThe following connection type is recommended when connecting a cable lug (4) to abusbar:• Spring washer (1) and flat washer (2) on each side of the busbar (3).Other washers can be used, provided they maintain the required contact pressure.• Use cable lugs suitable for M12 bolts. The required tightening torque is 40 Nm.Lubrication• If stainless steel bolts and nuts are used, lubricate the thread and head contactsurface of the bolt using recommended pasts, e.g. Molykote D paste.Note: If a coated nut (e.g. with bonded molybdenum-disulfide [MoS 2] coating) is used,the connection does not have to be lubricated.Tightening torque• Tighten bolted connections with bolts of sizes M10 and greater with the recommendednominal torque for the bolt size used.Installing auxiliary, control and serial communicationcables Further informationSee ACS580MV Base frame & TEU layout design for information on:• Project-specific cable entry1231 24651 Spring washer (2 pcs. per terminal)2 Flat washers (2 pcs. per terminal)3 Busbar4 Cable lug5 M12 bolt6 M12 nut
