MARS 43313 Cycling Switch Automatic Reset: Features a 44/27

Automatic Reset: Features a 44/27 PSI differential that resets without manual intervention

increasing safety during field service

you should read approximately 24VAC to 27VAC on the secondary terminals when the primary side is energized at 208V or 230V

ensuring consistent 24 VAC output across varying line conditions

Whether you are performing a preventative maintenance check or a critical repair on HVAC gas furnace controls

MARS 43313 Cycling Switch Automatic Reset: Features a 44/27The MARS 43313 Manual Reset Cycling Switch is a heavy duty HVAC pressure control designed for precise condenser fan management in R 410A systems and other high pressure applications. Engineered with a 410 PSI open on rise setpoint, this SPST switch provides critical high limit protection by interrupting the circuit when system pressures exceed safe operational thresholds. The manual reset feature ensures that technicians can investigate the root cause