Eaton Limit Switches Limit switch 629730 - Eaton 19872, Eaton's T0-1-15431/E is a limit switch rated for 20 A and 690 V, designed with a rotary cam mechanism. The switch features a colour scheme of grey and black and operates within a range of 2 x 60 degrees. Typical applications include use as a reversing switch, changeover switch, and selection switch in electrical circuits. Eaton T0-1-15431/E Limit Switch 20A 690V 2x60° Grey/Black