Honeywell Q340A1090



Q340A1090 686350
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ItemReplacement Thermocouple
TypeStandard Coaxial
Length (In.)36 in.
Voltage30 mV; Open circuit output--26 mV to 32 mV
Gas TypeLP/NG
Special InformationStainless Steel Outer Jacket, For 30 mV Standing Pilot Systems
Includes Adapter and Push In Clip
Package Quantity 1
Application Thermocouple for Standing Pilot Applications
Tradeline ValueUniversal
Temperature Ratings (C)Hot Junction--760 C; Cold Junction--416 C
Temperature Ratings (F)Hot Junction--1400 F; Cold Junction--780 F
Connection Type11/32 32 Male Connector Nut
Resistance0.02 ohms
Length (mm)914 mm
UPC 085267067430
Weight 0.100000


The Honeywell Q340A1090 is a 30 millivolt thermocouple with 11/32 32 Male Connector Nut connection and 36 inch leads. Thermocouples 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 of DC power, measured in millivolts.

The Honeywell Q340A1090 Thermocouple features spade or quick connect terminals available for millivolt gas control connections and a male nut connector for Pilotstat safety control power units. Includes a push-in clip, split nut, and adapter assembly for easy pilot burner installation.

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