Hubbell Pressure Switch

Features: Corrosion resistant cover No wire looping Straight through wiring Visible contacts–2 pole, double throw No-drift pressure settings Captive cover screw Easy to adjust Two ratings–3 HP and 5 HP UL listed file #14861 CSA certified file #LR36854 Class 69WR Special Application Pressure Switches Closes the contacts on rising air or water pressure designed to ground ignition on gas driven pumps and compressors. Can also act low pressure. Reset lever optional.     See Technical Literature here Pressure Switch Catalogue