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LEFOO LFS-03 Automatic Sliding Door Differential Positive Negative Vacuum Miniaure Pressure Vacuum Air Switch
LEFOO LFS-03 Automatic Sliding Door Differential Positive Negative Vacuum Miniaure Pressure Vacuum Air Switch
LEFOO LFS-03 Automatic Sliding Door Differential Positive Negative Vacuum Miniaure Pressure Vacuum Air Switch
LEFOO LFS-03 Automatic Sliding Door Differential Positive Negative Vacuum Miniaure Pressure Vacuum Air Switch
LEFOO LFS-03 Automatic Sliding Door Differential Positive Negative Vacuum Miniaure Pressure Vacuum Air Switch
LEFOO LFS-03 Automatic Sliding Door Differential Positive Negative Vacuum Miniaure Pressure Vacuum Air Switch
LEFOO LFS-03 Automatic Sliding Door Differential Positive Negative Vacuum Miniaure Pressure Vacuum Air Switch
LEFOO LFS-03 Automatic Sliding Door Differential Positive Negative Vacuum Miniaure Pressure Vacuum Air Switch

LEFOO LFS-03 Automatic Sliding Door Differential Positive Negative Vacuum Miniaure Pressure Vacuum Air Switch

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Quick Details

Brand Name:
LEFOO
Model Number:
LFS-03
Max. Current:
2.5A
Max. Working Pressure:
2500mBar
Product name:
LFS-03 automatic sliding door vacuum air switch
Media:
Non Hazardous Gas
Terminal:
4.8mm*0.8mm copper alloy
Max pressure:
2500mbar
Rated voltage:
250V
Rated current:
250mA
Temperature:
-10 ℃~+90 ℃
Pressure Range:
-15~800mbar
Contact carrying parts:
brass sliver plated or brass gloden plated
Delivery time:
Normally 15 working days
Certification:
CE ROHS

Quick Details

Whether the smart:
NO
Max. Voltage:
250VAC
Place of Origin:
Zhejiang, China
Brand Name:
LEFOO
Model Number:
LFS-03
Max. Current:
2.5A
Max. Working Pressure:
2500mBar
Product name:
LFS-03 automatic sliding door vacuum air switch
Media:
Non Hazardous Gas
Terminal:
4.8mm*0.8mm copper alloy
Max pressure:
2500mbar
Rated voltage:
250V
Rated current:
250mA
Temperature:
-10 ℃~+90 ℃
Pressure Range:
-15~800mbar
Contact carrying parts:
brass sliver plated or brass gloden plated
Delivery time:
Normally 15 working days
Certification:
CE ROHS

Product Description

1. Product Pictures:

2. Product Specifications:

LFS-03 vacuum air  switch 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 A250 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 A250 V~5E4(max 800 mbar)
20 mA 250 V~5E4

Temperature

Ambient: -10 to +85℃

Electrical Connections

Tab terminals 6.4 x0.8 mm
Tab terminals 4.8 x0.8 mm(1 pole NO only)

PressureRange

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 or5.5 mm(up to 500 mbar)
Threaded inlet M10 x1 mmor 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 Pa

3. Product Dimensions(mm) :

4. Production Lines:

5. Patens:

6. Quality Control:

7. Why choose us?

25 patents

45 products were certified with UL,CSA,VDE,CCC and CE

50 engineers teamed for R&D

Coorperation experience with member in fortune global 500

8. LEFOO Exhibitions:

2019. 3  Acrex  India

2019. 1  Ahr  Expo

2018. 6 Aquatech Shanghai

2018. 4 Canton Fair

2018. 4 China Refrigeration show

2018.3 MCE Milano

2018.1 AHR Chicago

9. Packing and shipping:

If you are willing to know more

details, pls contact me freely!

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