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pressure switch
pressure switch

1.Used on air-conditioner,refrigerator,etc. 2.Min order:1000 pieces each time. 3.Order ability:1000000 pieces per year.

This type product is special used in high-low pressure protect control of air-conditioning cooling system.When the pressure inside the system is over or below rated safe pressure,the disc in sensor will start move instanly,and this works together with connecting rod and push the swith connector to open or close.When pressure duduce or rise to rated reset point,the disc wil reset accordingly,and the switch also auto reset.

The series technique is as follows:

Ordinal number


The technique request


The pressure value sets the scope

3-667PSl / 0.02-4.6Mpa


The pressure value business trip scope

1.45-14.5PSl / 0.01-0.1Mpa


Touch some form

NC (H)    NO (L)


Contact capacity

AC240V 3A   AC120V 6A


Contact resistance

« 50mΩ


Insulate the electric resistance

» 100mΩ Connect the line carries with a » 100mΩ


The anti-electricity strength

The AC1500V last the 1 min clock and did not broke through and gleam


Biggest blow up the pressure

At the « 5000PSl of («34.5Mpa) blows up the pressure under the 1min clock did not burst the phenomenon


Air tightness

The 4.8Mpa/ 1 min no leakage


Adapt the temperature

The environment temperature  -30 ~ +80°C

Lie the quality temperature -50 ~ +120°C

pressure switch

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