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LF20-V Vacuum Switch (1.1~22 inHg)
Product Details

LF20-V vacuum switch is specifically designed to stand up to extended duty applications. This switch is factory set. It features a fluorosilicone rubber diaphragm for compatibility with a wide variety of fluids, and various terminations including a Metri-Pack connector that forms a tight seal when connected. Among the outstanding design benefits are its durable construction, compact size, and enhanced set point integrity.


Series No.



Air, water, other variety of fluids that is suitable for fluorosilicone diaphragm

Pressure Set Point

Factory set from 1.1 to22”Hg vacuum

Max Operating Pressure

30”Hg vacuum

Burst Pressure

150 psi

Operating Temperature Range

-40°C to 120°C

Switch Type

Direct action, blade contact

Electric Rating

Resistive: 15 AMP- 6 VDC

8 AMP- 12 VDC

4 AMP- 24 VDC

Inductive: 1 AMP- 120 VAC

0.5 AMP- 240 VAC

Contact Arrangement

SPST-N.O., N.C.,


#8-32 screws, 1/4”blade


1/8"NPT Male, 1/4"NPT Male, G1/8" Male, G1/4" Male


Contact: Silver alloy, gold plated

Base: Brass

Cover: Glass reinforced polyester

Diaphragm: Fluorosilicone elastomer


Various base connector sizes, wire leads(potted & sealed).

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