- Product Details
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Quick Details
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Brand Name:
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LEFOO
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Model Number:
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LF31
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Max. Current:
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5A
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Max. Working Pressure:
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3.6PSI
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Operating Pressure Range:
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0.15in W.C. to 34in W.C.
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Proof Pressure:
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100in W.C. (3.6psi)
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Switch Type:
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SPSP or SPDT
Quick Details
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Whether the smart:
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NO
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Max. Voltage:
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250V
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Place of Origin:
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Zhejiang, China
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Brand Name:
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LEFOO
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Model Number:
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LF31
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Max. Current:
-
5A
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Max. Working Pressure:
-
3.6PSI
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Operating Pressure Range:
-
0.15in W.C. to 34in W.C.
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Proof Pressure:
-
100in W.C. (3.6psi)
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Switch Type:
-
SPSP or SPDT
Products Description
Air differential pressure switch
LF31 switches offer pressure, vacuum and differential models capable of sensing very low setpoints, and switching current up to 5A resistive, 2.5A inductive. Designed for use in the HVAC industry, where reliable air proving is critical to both performance and customer safety. The LF31 is a favorite with leading manufacturers of gas-fired warm air furnaces and water heaters.
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A
Contact Material: S=Silver,G=GOLD
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B
Actuation Mean: V=Vacuum,P=Positive pressure
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C
Contact Arrangement: S=SPST,D=SPDT
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D
Orifice diameter in thing of an inch
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E
Direction of actuation pressure: L=Increasing,D=Decreasing
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F
Set point: 125,norminal set from 0-3000Pa
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G
Unit actuation pressure abbreviated: in W.C.,psi,Pa,mbar,etc
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Specification
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Model
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LF31
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Media
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Air,products of combustion or natural gas
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Operating Pressure Range
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0.15in W.C. to 34in W.C.
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Mounting Position
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Diaphragm in any vertical Plane
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Proof Pressure
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100in W.C.(3.6psi)
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Burst Pressure
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5psi Minimum
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Operating Temperature
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-40℃ to +85℃
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Contact Arrangement
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SPSP or SPDT
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Electrical Rating
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Resistance:initial<50 milliohms
Current:100mA mimimum,5A(resistive)maxmimum(fine silver alloy contacts)
15mA minimum,0.5A maximum(gold-platinum-silver alloy contacts)
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Termimnal
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6.3mm or 4.8mm copper alloy
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Connection
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Φ6.4mm for tube connection
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Conversion: 1in W.C.=249Pa 1mbar=100Pa
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