The Lennox 46F12 Relay is a specialized SPST 24V relay designed for sequence control and delay purge cycles in residential and commercial HVAC units

providing the precise voltage regulation and timing cycles required for heavy-duty HVACR applications

Precision Calibration: Fixed 650 PSI open / 450 PSI close settings eliminate the need for manual field adjustments and prevent setpoint drift

though the ignition port should typically be mounted 1/4 inch above the nearest burner port for optimal ignition

If the indoor coil is icing over or the PTAC unit is short-cycling without reaching the setpoint

Eaton Cutler-Hammer XTPR010BC1 Motor Protector 318172-701 The Lennox 46F12 Relay isThe Eaton Cutler Hammer XTPR010BC1 is a manual motor protector designed for precise overload and short circuit protection in industrial motor control circuits. Part of the XT Power Control series, this B frame device features a thermal setting range of 6. 3 to 10 Amps, making it a reliable solution for small to medium horsepower applications. Engineered with Type F coordination, the XTPR010BC1 integrates both motor disconnect and branch circuit