 1950 Series - Differential Pressure Switches (W.C) Description: Specifications | Service | Air and non-combustible, compatible gases | | Wetted Material | 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 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 Rating | NEMA 3 (IP54), NEMA 7 & 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 Adjstment | Screw type on top of housing | | Weight | 3.25 Ib (1.5 kg); 1950-02 model, 4.4 lb
(2 kg) | | Agency Approvals | CE, CSA, FM, UL |
| Part No. | Range in W.C | Min. Set Point | Max. 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 | | 1950-5-2F | 1.4 to 5.5 | .30 | .40 | | 1950-10-2F | 3 to 11 | .40 | .50 | | 1950-20-2F | 4 to 20 | .40 | .60 |
Product DescriptionModel
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
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