The MARS heat sequencers are used in a variety of applications, including electric furnaces, baseboard heaters, heat pump blower control and heating element control. The sequencers stage electric heat to prevent circuit overload. These units operate by means of a PTC (positive temperature coefficient). The PTC is self current limiting, ensuring stable switching action over a wide range of voltages.
Mars® Electric Heat Sequencer, 2 Switches, 2 Timings, 1 to 30 sec Switch On, 40 to 110 sec Switch Off, 24 VAC, (2) DPST, Import