Carrier HH18HA187 Limit Switch maintaining the original equipment manufacturer

maintaining the original equipment manufacturer (OEM) specifications for response time and thermal sensitivity

This transformer is primarily designed for Wayne Combustion burner assemblies but is a universal solution for any HVACR system requiring a 120V primary to 24V secondary 30VA power source

By providing the exact clearance required for large-scale MP953 series actuators

allowing it to withstand ambient temperatures up to 122°F while maintaining consistent magnetic flux

Carrier HH18HA187 Limit Switch maintaining the original equipment manufacturerThe Carrier HH18HA187 Limit Switch is a critical OEM replacement part designed for high limit safety monitoring in residential and commercial gas furnaces. This SPST normally closed disc style switch features a fixed 180 degree open setpoint and a 80 degree close reset point, ensuring the heat exchanger does not exceed safe operating temperatures. Engineered for automatic reset functionality, the HH18HA187 integrates seamlessly into the safety string