Hubbell Square Box 4 In. Tko Knockouts 2-1-8 In. Deep

Boxes are installed in ceilings or walls for lighting fixtures, switches or receptacles. Square boxes are used where multiple conductor runs are split into two or more directions to bring power to a number of electrical devices. Features RACO's patented TKO 1/2" & 3/4" eccentric knockouts (Per U.L. 514-A, suitable for use without a bonding jumper in circuits above or below 250 volts). Combination cover screw heads provide for faster mudring & cover installation. Raised ground provision in back of box