Klixon 20PS Series

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Site Updated March 19, 2009
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Klixon® 20PS series for HVAC/R, commercial, and industrial uses
-20°F to 150°F, automatic reset pressure switch

Features and Overview Product Uses
Performance Characteristics  
Data Sheet (PDF) » Contacts and distributors »

Features and Overview /\ Top

Single pole, single throw switch normally open or closed contacts
Factory calibrated pressure setpoints from vacuum to 750 psig (52 Bar)
Snap–acting, stainless steel
Hermetically sealed sensor
Environmentally sealed or vented switch
Typical use: click here
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Klixon 20PS Pressure Switch

This compact, rugged switch utilizes a snap–acting stainless steel diaphragm that reverses its curvature when pressurized to a customer specified actuation pressure. When the disc snaps it opens or closes a set of electrical contacts by means of a transfer pin. Resetting the switch occurs automatically when pressure drops below the release value.

The unique latching mechanism in the 29PS design assures safe electrical cutout even if the reset button is held fully depressed. This trip–free design prevents the consumer from restarting the equipment until the line pressure has dropped below the release setpoint.

Product Uses /\ Top
Appropriate for a wide variety of HVAC/R, commercial, and industrial applications including:
High and low limit safety controls on unitary and central air conditioning systems
Clutch disconnect and fan cycling switches for vehicle air conditioners
Hydraulic and oil sensors for construction and agricultural vehicles

Performance Characteristics /\ Top
Ambient Temperature
-20°F to 150°F (-28.9°C to 65.6°C)
Fluid Temperature
-65°F to 275°F (-53.9°C to 135°C)
Operating Pressure
Vacuum to 750 psig
Burst Pressure
5,000 psig
Life at Rated Current
100,000 cycles
Electrical Ratings
120 VAC - 5.8 FLA 34.8 LRA
240 VAC - 2.9 FLA 15 LRA
375 VA Pilot Duty
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