Pressure Switch

Pressure Switch
Model:LFS-03
Brand:LEFOO
Origin:Made In China
Category:Electronics & Electricity / Electric Control System
Label:Air switch , Pressure Switch , Vacuum Switch
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Product Description

LFS-03 can be is applied to detection positive or negative pressure. It can be used as a gauge or differential pressure switch with almost no hysteresis. If 2 switch points are required, 2 pressure switches with different calibrations should be employed. The method of fixing the tab terminals to the switch body does not allow for absolute air sealing. The switch is therefore not recommended for applications where static vacuum has to be maintained. However, special models with additional pressure spring which allow for the vacuum to be connected to the pressure inlet side are available on request.

 

   

  
 
 
 

Model

LFS-03

Electrical Function

1 pole NO
1 pole NC

Switch Rating

1 pole NO:
2.5(0.5) A 250V~1E4
1 A 250 V~5E4(max 800 mbar)
20 mA 250 V~5E4(max 800 mbar)
1 Pole NC:
2.5(0.5) A 250V~1E4
0.5 A 250 V~5E4(max 800 mbar)
20 mA 250 V~5E4

Temperature

Ambient: -10 to +85℃

Electrical Connections

Tab terminals 6.4 x 0.8 mm
Tab terminals 4.8 x 0.8 mm(1 pole NO only)

Pressure Range

Pressure: +15 to +2500 mbar
Tolerance: +/- 10% NO; +/- 15% NC
Vacuum: -600 to -15 mbar
Tolerance: +/- 15%

Sample Line Connections

Pressure and vacuum: Inlet 4.0 or 5.5 mm (up to 500 mbar)
Threaded inlet M10 x 1 mm or 1/4 gas

 Switch hysteresis

 Almost no hysteresis

 Max. working pressure

 3000 mbar

Medium

Non hazardous gas only

Fixing Methods

Plastics clips (version with inlet only)

Materials

Lower body:    PA 66

Upper body:    PA 66 

Adjust. screw:  PA 66 

Contact carrying parts: Brass Silver plated  (gold plating on request) 
Membrane: Nitrile, EPDM,  (Silicone, Perbunan on request)  according to application 

Conversion: 1mbar = 100 Pa     1 in/H2O= 249

Pressure Switch 1

Member Information

Zhejiang LEFOO Industrial Co.,Ltd.
Country/Region:Zhe Jiang - China
Business Nature:Manufacturer
Phone:86-577-27826727
Contact:Sandy Wang (Sales Rep.)
Last Online:08 Aug, 2011

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