Carrier HR54ZA003 Door Switch Unlike standard hardware store wrenches

Unlike standard hardware store wrenches

This ensures you or your team investigate the root cause

Fully enclosed Type 84 housing protects internal components from dust and debris

The 20269903 features a standard flange mount design for easy integration into the existing furnace cabinet

Carrier HR54ZA003 Door Switch Unlike standard hardware store wrenchesThe 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