Robertshaw 5500-134M Infinite Switch 5% Black Dial 120V

The Robertshaw 5500-134M Infinite Switch 5% Black Dial 120V controls electrical power supplied to proper heating elements by cycling current according to the selected dial setting. Its internal switching system opens and closes the circuit, allowing adjustable heat output during equipment operation. It is mounted behind the control panel and linked to the operating knob, where variable power regulation is carried out for HVAC systems. Adjustable switching operations provide proper heat control, electrical cycling, balanced temperature regulation, dependable circuit operation, and continuous equipment performance during service.