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pressure switch
pressure switch

1.High-low pressure control switch; 2.Usage:air-conditioning cooling system; 3.Order: 2000,000 pieces per year.

This type products are mainly used in high-low pressure protect control of air-conditioning cooling system,no matter for house-use,commercial-use,auto-mobile,and also fit for the other equipment.

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 switch connector to open or close.When pressure deduce or rise to rated reset point,the disc will reset accordingly,and the switch also auto reset.

The series  technique are as follows:

Ordinal number

Name

The technique request

1

The pressure value sets the scope

3-667PSl / 0.02-4.6Mpa

2

The pressure value business trip scope

1.45-14.5PSl / 0.01-0.1Mpa

3

Touch some form

NC (H)    NO (L)

4

Contact capacity

AC240V 3A   AC120V 6A

5

Contact resistance

« 50mΩ

6

Insulate the electric resistance

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

7

The anti-electricity strength

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

8

Biggest blow up the pressure

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

9

Air tightness

The 4.8Mpa/ 1 min no leakage

10

Adapt the temperature

The environment temperature  -30 ~ +80°C

Lie the quality temperature -50 ~ +120°C

pressure switch

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