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Manual reset pressure switch
Manual reset pressure switch

1.Used on refrigeration,air-conditioner,etc. 2.Min order:100 pieces each time. 3.Order ability:100,000 pieces per year.

The manual reset pressure switches are used on the refrigeration and air-conditioning cooling sysytem.When the pressure inside the system is over or below rated safe pressure,the disc in sensor will start move instantly,and this works together with the connecting rod and push the swith connector to open or close.When pressure deduce or rise to rated point,the disc wil reset accordingly,and the switch also auto reset.

Its main 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

Manual reset pressure switch

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