R604221-01 | Door Switch/Interlock Switch | Armstrong Furnace Amperage_3.7A Its precision design ensures secure

Its precision design ensures secure locking and precise alignment

It operates on a 115-volt power supply and delivers a speed of 900 revolutions per minute (RPM)

constructed from durable cast iron

renowned for its commitment to innovation and reliability

this three-pole breaker effectively interrupts excessive current flow

R604221-01 | Door Switch/Interlock Switch | Armstrong Furnace Amperage_3.7A Its precision design ensures secureArmstrong Furnace Door Switch Interlock Switch (R604221 01) This Armstrong Furnace Door Switch Interlock Switch (R604221 01) is an essential component designed to ensure safety and proper operation of your furnace system. Engineered to meet rigorous standards, it acts as a vital safeguard, preventing the furnace from operating when the access door is open. Specifically engineered for Armstrong furnaces, this switch features a durable construction that