Product Details
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- OEM replacement
- 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
