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TRH-K-101 Pressure switch

TRH-K-101 Pressure switch

  • price range: More than 500 batches: US$2.7-2.95
  • Select a product or scenario overview: pressure switch is The working principle

TRH-K-101pressure switch 

 is a more advanced miniature pressure switch in the world. It is one of the electrical switches that control the circuit open or close on pressure of the controlled medium increase or decrease. It is used widely in refrigeration system, oil pump, air pump and the other industrial equipment which require to adjust the medium pressure to protect system.


When the pressure of the controlled medium rises to a predetermined value, the snap disk will snap act to drive a set of electrical contacts by means of a transfer pin. When the pressure of the controlled medium drops below another predetermined value, the snap disk will snap to the original state, to make the contact terminal close (or open). In this way the switch function is realized.


(rated voltage)

(test pressure)

(rated voltage)

(test pressure)

0-150psig

220 psig

301-500psig

650psig

151-300psig

500psig

500-700psig

800psig

The blasting pressure is 0.

1450 psig (broken pressure is 1450psig)

4.2(electrical capacity):,120/240Vac:6A/5A、 5-28 Vdc 5-400 mA 

4.( YK series automatic resetting pressure switch’s standard operating pressure, differentical pressure and accuracy)

pressure range0-700psig /0-5MPa(pressure range)

(operating pressure)

(tolerance)

 (operating pressure)

(tolerance)

10-50psig

±10 psig

121-350psig

±15 psig

51-120 psig

±10 psig

351-700psig

±20 psi

4.4 ( electric strength)

a. ( After the separating, among of the pressure switch’s contacts can be afforded AC750V, during 1 min without the breakdown and flashover phenomena)

b. ( Between the terminal ( lead ) and the casing of the pressure switch can afford AC2000V, during 1 min without the breakdown and flashover phenomena)

4.5 ( Insulation Resistance)

(in normal temp. state, the insulation resistance among the lead and the accessories which will contact the metal accessories should be over 100M

4.6( contact resistance )

(Onstate products’ contact resistance should be less than 50M )

4.7 ( working environment temp. {medium temperature})

-20℃-120℃

Terminal type

And contact type


A

B

C

D

AB

CD

(lead wire, normal open)

(lead wire,normal  close)

(quick connect terminal, normal open)

(quick connet terminal, normal close)

SPDT(lead wire,SPDT)

SPDT(quick connet terminal,SPDT)

(connect type)

1/4F

1/4M

1/8M

10X1、10X1.25

7/16-20UNF-2B

1/4-18 NPTF-1A

1/8-27 NPTF-1A

M10X1、M10X1.25

T1

T2

T3

T4

Φ6

Φ6(straight tube abridged)

Φ6(bend pipe)

Φ6(bend pipe abridged)

6(Can do OEM products if the customer has the special requestment)