Optimized Performance: Specifically calibrated for 3

The White-Rodgers 3L09-13 Limit Switch is a mission-critical board mounted 1/2" bimetal disc limit switch designed for rapid response and high-speed contact separation in residential and commercial furnaces

Manual Fan Override: Integrated flexibility allows for continuous fan operation to assist with system diagnostics or airflow management

as restricted airflow often causes the limit to trip

Precision Metering: Size 00 bore provides exact mass flow rates required for low-capacity refrigeration and AC applications

Carrier 51HK400163 Knob 321042-401 Optimized Performance: Specifically calibrated forCarrier 51HK400163 Knob Notes Item is Non Cancelable Non Returnable