Twister wire connector is rated for 600V (volt) maximum. Features include swept-wing design for comfort, live-action, square-wire spring, hexagonal shape for standard nutdriver and no pre-twisting required. Shell rated for 105 degrees Celsius. UL (Underwriter's Laboratories) listed and CSA (Canadian Standards Association) certified. Accepts 3 No. 22 to 3 No. 10 AWG wire combinations, tan, box of 100.