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Navigation: Home > Product > Pressure > Air,Gas Pressure Switch > Adjustable differential pressure switch for HVAC PS-LA3
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Adjustable differential pressure switch for HVAC PS-LA3

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product category: Air,Gas Pressure Switch
Model: PS-LA3

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Product Detail

Adjustable differential pressure switch for HVAC PS-LA3

The adjustable differential pressure switches are primarily used in ventilation and air-conditioning systems for monitoring the air flow in air ducts, as well as in filters, flaps and fans. They are suitable for air and also other non-inflammable and non-aggressive gases.

Model No. PS-LA3
Medium Air, non-combustible and non-aggressive gasses
Max Operating Pressure 10 kPa 
Mounting position Diaphragm in any vertical plane
Degree of protection IP54 (with cover)
Operating Temperature  -40° C to 85° C
Contact Arrangement SPDT
Electrical Rating Resistance: Initial: <50 milliohms;
1.5A (0.4A) / 250V
Terminals 6.3 mm(0.25") copper alloy
Connection 6.0mm Dia. for tube connection 
Approval UL,  CE, RoHS, REACH
Model Pressure Range Differential Tolerance
PS-LA3-02 20 ~ 200 Pa 10 Pa ±15%
PS-LA3-03 30 ~300 Pa 10 Pa ±15%
PS-LA3-04 40 ~400 Pa 20 Pa ±15%
PS-LA3-05 50 ~ 500 Pa 20 Pa ±15%
PS-LA3-10 200 ~ 1000 Pa 100 Pa ±15%
PS-LA3-25 500 ~ 2500 Pa 150 Pa ±15%

Conversion:  1"W.C.= 1 inch/H2O=249Pa   1mbar=100Pa   

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