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Honeywell Thermocouples Q390 generate a thermoelectric current that senses a pilot flame on gas-fired heating systems. The pilot flame heats the tip of the thermocouple, producing a temperature differential between it and the base. This temperature difference generates a small amount (millivolts) of DC power.
- Voltage: 30 mV;
- Connection Type: 11/32 32 Male Connector Nut;
- Open Circuit Output: 26 mV to 32 mV;
- Resistance: 0.02 ohms;
- Temperature Ratings Hot Junction: 1400 F;
- Temperature Ratings Cold Junction: 780 F;
- Tradeline Value: Tradeline
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