Low Pressure High Pressure Switch

The relay locks in electrically through contacts cr1 and the low pressure switch.

Low pressure high pressure switch.

Low pressure switch open on pressure drop closes on pressure rise. 3 9 out of 5 stars 5. When a refrigeration system operates at lower than normal pressures the system can freeze up with the freezing beginning at the evaporator coil. Get it as soon as fri sep 11.

The high pressure switch monitors the system for an inoperative outdoor motor and or a dirty restricted condenser outdoor coil. The switch may be designed to make contact either on pressure rise or on pressure fall. High pressure hp and he series. 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.

The low pressure switch monitors the refrigeration system for a loss of refrigerant. 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. 1 4 female sae mounting. They can be wired normally open no or normally closed nc.

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. Designed for high pressure applications these switches electrically activate automated controls or alarms when a set pressure is reached. 10 pcs master box. Medium pressure me series.

Switches are single pole double throw spdt so they switch one circuit on or off. As pressure falls the high switch will break but this has no effect on the switching circuit. High pressure switch open on pressure rise closes on pressure drop. 4 3 out of 5 stars 26.

A high pressure switch hps and a low pressure switch lps are protective devices for the compressor and refrigeration circuit. 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. 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. The honeywell pressure switch portfolio consists of.

Relay contacts cr2 will break the switching circuit. Free shipping on your first order shipped by amazon. Standard high low pressure switch are for 0 100 psi the standard setting is 40 60 psi. 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. Lefoo lf08ps low high pressure switch 10 40psi used in air condition refrigeration water oil lubricant. 24v 120v 240vac 50 60hz 6rla 36lra. 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.