INSULATED BUS BAR ASSEMBLY

Individual bus bars are insulated between their offset ends by two pairs of preformed U-shaped insulator strips having unequal length legs, the insulators of the respective pairs being slipped over the bar from opposite edges with the longer leg of each adjacent, and preferably tucked under, the shorter leg of the other and the second pair being disposed oppositely of the first pair. The offset ends are insulated either by a spiral wrap of insulating tape or a dip coating of insulation, each applied to overlap the ends of the preformed insulators. Three or four individually insulated bus bars are assembled with offset ends flared apart and have a preformed elongated rectangular insulator, slit along one side, disposed around the assembly between the innermost bends of the offset ends. The complete assembly between the offset portions is then tightly encased within a metallic housing.