1950 Series - Differential Pressure Switches (W.C)

1950 Series - Differential Pressure Switches (W.C)
Description:
Specifications

 

 
ServiceAir and non-combustible, compatible gases
Wetted MaterialConsult factory
Temperature Limits-40 to 140°F (-40 to 60°C);
0 to 140°F (-17.8 to 60°C) for 1950P-8, 15, 25, and 50. -30 to 130°F (-34.4 to 54.4°C) for 1950-02.
Pressure LimitsContinuous: 1950’s - 45 in w.c. (0.11 bar); 1950P’s - 35 psi (2.41 bar); 1950P-50 only - 70 psi (4.83 bar). Surge: 1950’s - 10 psi (0.69 bar), 1950P’s - 50 psi (3.45 bar), 1950P-50 only - 90 psi (6.21 bar)
Enclosure RatingNEMA 3 (IP54), NEMA 7 & 9.
Switch TypeSingle-pole double-throw (SPDT).
Electrical Rating15 A @, 125, 250, 480 VAC, 60 Hz. Resistive 1/8 HP @ 125 VAC, 1/4 HP @ 250 VAC, 60 Hz.
Electrical Connections3 screw type, common, normally open and normally closed
Process Connections1/8˝ female NPT.
Mounting OrientationDiaphragm in vertical position. Consult factory for other position orientations.
Set Point AdjstmentScrew type on top of housing
Weight3.25 Ib (1.5 kg); 1950-02 model, 4.4 lb
(2 kg)
Agency ApprovalsCE, CSA, FM, UL

 

Part No.Range in W.CMin. Set PointMax. Set Point
1950-02-2S.03 to .10.025.05
1950-00-2F.07 to .15.04.05
1950-0-2F.15 to .50.10.15
1950-1-2F.4 to 1.6.15.20
1950-5-2F1.4 to 5.5.30.40
1950-10-2F3 to 11.40.50
1950-20-2F4 to 20.40.60


Product Description

Model 1950 Explosion-proof Differential Pressure Switch combines the best features of the popular Dwyer Series 1900 Pressure Switch with an integral explosion-proof and weatherproof housing, making it an exceptional value for either application. It is CE, UL and CSA listed, FM approved.


Features

  • Service: Air and non-combustible, compatible gases
  • Wetted Materials: Consult factory Temperature Limits: -40 to 140°F (-40 to 60°C)
  • 0 to 140°F (-17.8 to 60°C)for 1950P-8, 15, 25, and 50. -30 to 130°F (-34.4 to 54.4°C) for 1950-02
  • Pressure Limits: Continuous: 1950's - 45" w.c. (0.11 bar)
  • 1950P's - 35 psi (2.41 bar)
  • 1950P-50 only - 70 psi (4.83 bar). Surge: 1950's - 10 psi (0.69 bar)
  • 1950P's - 50 psi (3.45 bar)
  • 1950P-50 only - 90 psi (6.21 bar)
  • Enclosure Rating: NEMA 3 (IP54), NEMA 7 and 9
  • Switch Type: Single-pole double-throw (SPDT)
  • Electrical Rating: 15 A @ 125, 250, 480 VAC, 60 Hz. Resistive 1/8 HP @ 125 VAC, 1/4 HP @ 250 VAC, 60 Hz
  • Electrical Connections: 3 screw type, common, normally open and normally closed
  • Process Connections: 1/8" female NPT
  • Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations
  • Set Point Adjustment: Screw type on top of housing
  • Weight: 3.25 lb (1.5 kg)
  • 1950-02 model 4.4 lb (2 kg)
  • Agency Approvals: CE, UL, CSA, FM