Honeywell Q370A1006 Thermocouple

The thermocouple has been developed for the use with different pilot burners. As long as the pilot flame heats the tip of the thermocouple, a low DC voltage is generated which supplies the coil of the safety pilot and keeps the safety valve open. If in case of a failure the pilot flame goes out, no voltage is generated any more and the safety pilot interrupts the gas supply to the burner.