P830 series pressure controls can protect compressors in refrigeration and air-condition plant, and keep them from over-low pressure or over-high suction pressure.
P830 series pressure controls can start and stop refrigeration compressors and fans of air condensers.
P830 series pressure controls can be used not only in fluoride refrigeration, but also in air and liquid.
P830 series pressure controls are fitted with a single pole double throw (SPDT) changeover switch. The position of the switch is determined by the pressure control setting and the pressure at the connector.
Certificates: CQC(China),CE (Europe).
Pressure controls are pressure-activated switches,with a basic function to make or break an electrical circuit which in tur controls a solenoidcoil,a contactor or some other functioning part of the system.The set point at which a control closes a contact and makes a circuit is called the cut-in point .The point at which the control opens the switch and breaks the circuit is called the cut-pit point.The difference between the cut-in and cut-out point is known as the differential.
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