This 3/4HP ECM blower motor operates at 1050 RPM 208-230V

the M9203-BUA-2 is the standard model with no auxiliary switches

Its manual reset capability is a vital diagnostic feature for technicians

This specific model is a normally closed switch that triggers an open circuit on temperature rise at 160°F and closes upon a temperature drop to 120°F

it handles 1/2 horsepower loads at 120/240 Vac while maintaining high repeatability

Carrier HH12HA142 Limit Switch R-22 This 3/4HP ECM blower motorThe Carrier HH12HA142 is a genuine OEM limit switch engineered for precision thermal protection in residential and commercial gas furnaces. This manual reset limit switch is factory calibrated to trigger at a fixed temperature of 140F (60C), functioning as a critical safety cut off that interrupts the heating circuit upon detecting an over temperature condition. Constructed for high cycle reliability in harsh furnace environments, the HH12HA142