Low Pressure High Pressure Switch

The high pressure switch monitors the system for an inoperative outdoor motor and or a dirty restricted condenser outdoor coil.

Low pressure high pressure switch.

The relay locks in electrically through contacts cr1 and the low pressure switch. Relay contacts cr2 will break the switching circuit. They can be wired normally open no or normally closed nc. Get it as soon as fri sep 11.

Pressure switches are widely used in industry to automatically supervise and control systems that use pressurized fluids. High pressure switch open on pressure rise closes on pressure drop. The pressure switch comes is to be installed imidiately downstream of the mainline source valve per nfpa 99 and are to be wired as normally closed on all circuts. Designed for high pressure applications these switches electrically activate automated controls or alarms when a set pressure is reached.

Free shipping on your first order shipped by amazon. Low pressure switch open on pressure drop closes on pressure rise. A pressure switch is a form of switch that operates an electrical contact when a certain set fluid pressure has been reached on its input. These pressure switches are durable reliable electromechanical gauge pressure on off switches that are available with either single pole single throw spst normally open or normally closed circuitry or single pole double throw spdt circuitry.

3 9 out of 5 stars 5. They are often used in pump and hydraulic power applications. As pressure rises further the high pressure switch will close energizing the coil of relay cr. 24v 120v 240vac 50 60hz 6rla 36lra.

The low pressure switch monitors the refrigeration system for a loss of refrigerant. Low pressure lp and le series. The switches are also used for starting and stopping refrigeration compressors and fans on air cooled condensers kp pressure switches are available in ip 30 and ip 44. The switch may be designed to make contact either on pressure rise or on pressure fall.

1 4 female sae mounting. Switches are single pole double throw spdt so they switch one circuit on or off. Kp pressure switches are for use in refrigeration and air conditioning systems to give protection against excessively low suction pressure or excessively high discharge pressure. Standard high low pressure switch are for 0 100 psi the standard setting is 40 60 psi.

As pressure falls the high switch will break but this has no effect on the switching circuit. When a refrigeration system operates at lower than normal pressures the system can freeze up with the freezing beginning at the evaporator coil. 10 pcs master box. Four seasons 20916 high cut out pressure switch.

4 3 out of 5 stars 26. Low refrigeration pressure switches the low pressure switch is typically an automatic reset switch that will reset itself when the pressure on the low pressure side of the refrigeration systems returns to normal or above the setting on the switch. Medium pressure me series. High pressure hp and he series.