Tecmark 3902 Heater Spa Pressure Switch 1 Amp 1-5 Psi

This item is the last one available from Pool and spa store inventory. Items being sold are brand new and have never been installed or used. This classifieds board item is forTecmark pressure switch model 3902, one of the most used in the spa industry.1/8" MPT male-part threads plastic connection, will not oxidize or rust. It is perfect for salt water & high moisture areas.1 to 5 P.S.I. Adjustable pressure detectionSpade/forks terminals connections & #8 screwsBalboa instruments prior to M7 system, all pressure switch technology spa packsAnd all others brands using pressure switch device for heater protection (Len Gordon, Tridelta, etc...)-------------------------------------Manufacturer product presentationSeries 3900 Pressure Switch SpecificationsSeries 3900 Pressure SwitchSeries 3900 pressure switches are widely used in pilot duty applications and incorporate field adjustable set points and internal switch contacts.

These switches convert a pressure signal to an electrical output. In response to a change in pressure, movement of an elastomeric diaphragm opens or closes an electrical circuit based on a predetermined pressure set point. The Series 3900 feature a compact size and a cost effective, combination terminal design which allows electrical connection with either 1/4" quick connect or #8 screw terminals. Pressure ranges as low as 6" Water Column (W.C.)* up to 5 PSI are available (1.5 kPa to 34.5 kPa). Series 3900 switches assure control stability through wide temperature and humidity conditions.

As with all Tecmark® products, Series 3900 switches provide superior performance and uninterrupted service, even under extreme shock and vibration.*27.7" water column = 1 PSI Typical ApplicationsCommonly used as an interlock device to sense positive pressure in pneumatic or fluid flow systems. Series 3900 switches provide on/off control of a variety of electrical devices including gas, electric, electronic ignition and millivolt (standing pilot) heaters in fluid flow systems as well as other electrical equipment.