90217 Pressure Switch 110psi ON 145psi Off – 1/8" NPT Male Air Compressor Pressure Switch, Heavy Duty 30A，Replace 90217 for Air Horn Train Systems

["Applicable Model: Fit for air compressors, automotive electrical systems, hydraulic systems, and more, Replace 90217","Precise 110PSI Start, 145PSI Stop: This 90217 pressure switch has a preset control range of 110PSI start and 145PSI stop. It monitors system air pressure in real time, automatically starting the air compressor when the pressure drops to 110PSI and automatically stopping when it rises to 145PSI, maintaining a stable air supply pressure","30A High Current Carrying Capacity: The switch contacts are rated for 30A, compatible with most household and commercial air compressor motors. Extends switch lifespan","Quick Replacement of Old and Damaged Switches: Directly replace the faulty 90217 pressure switch on the original equipment. Remove the old switch, wrap it with Teflon tape, screw in the new switch, and connect the wires to complete the replacement; no adjustment of control parameters is required","Simple and Quick Installation: The replacement steps are: disconnect the power, remove the old switch, wrap Teflon tape around the threads, screw in the new switch and tighten, connect the wires, and test start/stop"]