White-Rodgers Mercury Flame Sensor, 48 Inch Capillary Length, 3 Pin Plug Terminal, No 20 Bulb, For Use With: Gas Burner Controls
- Mercury flame sensors consist of mercury-filled sensing bulb, capillary and diaphragm assembly mounted on a switch mechanism
- Pilot flame heat vaporizes mercury within sensing bulb, which actuates the snap-action switch
- Switch may be SPST or SPDT and is usually wired in series with main valve relay in most automatic ignition systems
- Sensors furnished with either spade terminals (3049 series) for point to point wiring or direct plug-in connections (3098 series), eliminating point-to-point wiring
- 1450 deg F at bulb tip
- Panel type E
Standard/Approvals: CSA Certified
Application: For Proving Pilot Flame and Controlling Main Valve in Cycle Pilot