Lennox 10M51 Pressure Switch 320074-702 8401-006BX is the cross of

8401-006BX is the cross of S8401-006

Efficient Heat Exchange: The 1075 RPM single-speed output is tuned to optimize CFM over condenser coils

Using a different speed will alter the airflow across the coil

and BD400 heaters

Lennox 10M51 Pressure Switch 320074-702 8401-006BX is the cross ofThe Lennox 10M51 Pressure Switch is a high limit safety control engineered for demanding refrigeration and air conditioning applications. This OEM Lennox replacement part features a Single Pole Double Throw (SPDT) contact configuration, offering versatile electrical integration for monitoring system critical points. Factory calibrated to actuate at 450 PSI, the 10M51 provides essential protection against overpressure conditions that can lead to