The Bloomfield 2E-30570 infinite switch is an electrical control component designed for compatible commercial foodservice heating equipment. Rated at 15 amps and 120 volts, it regulates power supplied to the connected heating element through adjustable control settings. Rotating the switch changes the electrical output, allowing operators to select the desired heat level for the equip... https://partsfe.com/infinite-switch-120v-15a-2e-30570/1-2E-30570.html