PSW20A and PSW20B
Pressure Switch
Miniature Vacuum or Differential Pressure Switch - Discontinued

PSW20A and PSW20B : Pressure Switch<BR>
Miniature Vacuum or Differential Pressure Switch<span class=discontinue-title> - Discontinued</span>
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1,140.00  Kč *
     PSW20A

  Low Cost
  UL Recognized, CSA Cerified
  High Sensitivity
  For Pressure, Vacuum and Differential Applications

The PSW20A and PSW20B series have been discontinued. Some stock still remains; please check the specific item you are seeking to see if there is remaining inventory. Please see the Pressure Switch Product Finder or contact Omega Sales for possible alternatives.

These sensitive single pole switches can be used as pressure or vacuum switches, or as differential pressure switches.

SPECIFICATIONS
Approvals: UL recognized, CSA certified
Temperature: -30 to 65°C(-23 to 149°F)
Setpoint Accuracy: ±10% of setting at 70°F
Note: Pressure settings may change over the temperature range.
Materials of Construction
Body: Acetal
Diaphragm: EPDM bonded to steel ring
Contacts: Gold plated silver
Springs: Plated Phospher Bronze
Terminals: Plated Copper or Brass
Pressure Connection: Spout for 1/8 ID tubing
Adjusting Screw: Stainless Steel or Zinc Plated Steel. Setting as shipped, 2 inches of H2O negligible deadband
Media: Clean dry non-corrosive gases only.
Note: The pressure media entering through Port A is in direct contact with the electrical contacts in the switch. The media entering through Port B is separated from the electrical contacts by the diaphragm.
Weight: 9 g (0.3 oz)

Pressure Switching Normally Open Contacts
Connect the pressure source to Inlet Port B and set the adjusting screw to the desired pressure setpoint. Turning the screw clockwise narrows the gap between contacts and decreases the setpoint. Turning the screw counterclockwise increases the gap, increasing the setpoint. Note that the media entering through Port B is separated from the electrical contacts by the diaphragm.
Pressure Switching Normally Closed Contacts
Connect the pressure source to PortA and monitor continuity across the terminals. Slowly turn the adjusting screw clockwise, narrowing the gap between the contacts until the contacts are closed. Apply the setpoint pressure which will open the contacts. Continue to turn the adjusting screw clockwise until the contacts make and break at the desired setpoint.
Vacuum Switching:
Repeat above using Port A for Normally Open contacts and Port B for Normally Closed Contacts.


 Èíslo modelu  Cena (bez DPH)  Popis  Ks
 PSW20A    1,140.00 Kč   Range: 0.4 to 15 inH2O, 8 psig Proof Pressure, Switch Rating: 750 mA @ 250 Vac (resistive)
 PSW20B    1,140.00 Kč   Range:1 to 20 inH2O, 8 psig Proof Pressure, Switch Rating 1 A@ 50 Vac (resistive)
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 * využijte možnost konzultovat ceny pøímo s našimi prodejci  (tel: 596 311 899 - prodejní oddìlení, e-mail: viz. kontaktní informace)
 Poznámka: Custom switches and pre-fixed setpoint at customer specified value available, 50 piece minimum order. Consult Pressure Engineering.

 Literatura
   Stáhnout kompletní specifikace produktu ve formátu PDF
 Manuály
   Stáhnout  PSW20 Series - Pressure, vacuum or differential pressure switches
 Souvísející odkazy
   PSW21 and PSW22 Series: Pressure and Vacuum Switches, Compact, Rugged, Adjustable - Discontinued
   PSW23, PSW24, and PSW25 Series: Pressure Switches
PCB Mountable Pressure, Vacuum and Differential Switches - Discontinued
   PSW27, PSW28, and PSW29 Series: Pressure Switches
Fixed Setpoint Pressure and Vacuum Switches - Discontinued