Description
Honeywell Q390A1053 Thermocouple Overview
The Honeywell Q390A1053 is a reliable 30mV thermocouple designed for use in gas-fired appliances, furnaces, boilers, and water heaters that rely on a standing pilot system. Built to deliver consistent flame-sensing performance, this thermocouple provides the millivolt signal needed to keep your gas valve safely energized whenever a pilot flame is present.
Key Specifications
- Output Voltage: 30mV
- Open Circuit Output Range: 26mV – 32mV
- Lead Length: 30 inches
- Connector: 11/32″ Male Connector Nut
- Resistance: 0.02 Ohms
- Includes: Adapter and Push-In Clip
Features & Benefits
- Generates a steady 30mV output to reliably hold open compatible gas valves
- Open circuit voltage range of 26mV–32mV ensures compatibility with a wide range of standing pilot gas controls
- 30″ lead length provides flexible routing in tight equipment cabinets
- 11/32″ male connector nut for secure, leak-free connection to the gas valve thermocouple port
- Ultra-low 0.02-ohm resistance minimizes voltage drop across the lead for maximum valve actuation reliability
- Includes adapter and push-in clip for straightforward installation and secure pilot bracket mounting
- Direct OEM replacement for Honeywell-compatible standing pilot systems
Applications
- Gas furnaces and boilers with standing pilot ignition
- Gas water heaters
- Gas fireplaces and space heaters
- Any appliance using a 30mV thermocouple-operated gas valve
