ON LOAD CHANGEOVER SWITCH: ON LOAD CHANGEOVER SWITCH (Without Sheet Enclosure):Supply and erection of On Load Change over Switch with advance neutral UNIT (Panel mounting Cubical type) in the existing Cubical Panel. (Confirms to IS 13947 (PartIII). complete with G.I. Bolts, Nuts & Connection on both sides of switch with sutiable size of Thimbles as per PWD General Specifications 2010. 630amp. 415 volts four Pole on load change over switch with advance neutral UNIT