Eaton Limit Switches Limit switch 629729 - Eaton 74320, Eaton's P3-100/EA/SVB is a limit switch that is lockable and rated for 100 A and 690 V, featuring a single 90-degree turn in yellow and red. It is a versatile rotary cam switch suitable for applications such as reversing, changeover, and selector switch operations. The switch is typically used to control and protect electrical circuits in industrial and commercial settings. Eaton P3-100/EA/SVB Limit Switch Lockable 100A 690V Yellow/Red