The steel shell is rated for a 680 PSI maximum working pressure and finished with corrosion-resistant epoxy powder paint

This 120-160F Auto Limit Switch is a normally closed safety component designed for precise thermal regulation

It is a direct cross-reference for Honeywell Q340A and Johnson Controls K19 series

A failed timer typically results in a burner that either fails to ignite or exhibits rapid cycling

Skin oils create hot spots that cause the silicon carbide to bridge and crack

Rheem-Ruud 47-20045-06 Limit Switch The steel shell is ratedThe Rheem Ruud 47 20045 06 Limit Switch is a critical safety component designed for high performance HVAC system protection. This OEM furnace limit switch features a DPST Normally Closed configuration, ensuring reliable circuit interruption when plenum temperatures exceed safe operating parameters. With a fixed open temperature of 130 degrees F and a fixed close temperature of 90 degrees F, this auto reset thermal switch prevents heat exchanger damage