Carrier HR54ZA003 Door Switch this 250F M/R Limit Switch

this 250F M/R Limit Switch features a manual reset mechanism

Common Questions What tube materials can I use with this adapter

Vibration Resistant: Engineered for stability in cooling systems and hydraulic service

and 3" lengths to ensure proper immersion depth across multiple nominal pipe sizes

this is a standard 11-pin octal interface

Carrier HR54ZA003 Door Switch this 250F M/R Limit SwitchThe Carrier HR54ZA003 Door Switch is a critical OEM safety interlock designed to ensure secure blower compartment closure before system engagement. As the direct cross version of B4310407, this switch is engineered for high duty cycles in residential and commercial furnace repair and air handler applications. Rated at 20A 125VAC and 10A 250VAC with 3 4 HP capacity, it provides the robust electrical characteristics necessary to handle inductive loads