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Dwyer 1950-1-2F Explosion-Proof Differential Pressure Switch
- Regular price
- $499.00
- Sale price
- $499.00
- Regular price
-
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Product Description P/N: 1950-1-2F
Description
Dwyer 1950-1-2F is an explosion-proof differential pressure switch for air and compatible gases. It has an adjustable 0.4–1.6 in. w.c. setpoint range and an SPDT contact with 10G mica-silver construction.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Dwyer |
| Category | Pressure Control |
| Part Number | 1950-1-2F |
| Subcategory | Explosion-Proof Differential Pressure Switches |
| Series | 1950 |
| Device type | Differential pressure switch |
| Setpoint range | 0.4–1.6 in. w.c. |
| Approximate deadband | 0.15 in. w.c. at minimum setpoint; 0.20 in. w.c. at maximum |
| Switch contact | SPDT |
| Contact construction | 10G mica silver |
| Diaphragm material | Fluorosilicone |
| Pressure connection | 1/8 in. female NPT |
| Enclosure | Integral explosion-proof and weatherproof housing |
| Compatible media | Air and compatible gases |
| Weight | 3.25 lb |
Information About 1950-1-2F
The 1950-1-2F belongs to Dwyer’s Series 1950 pressure switch line, which combines differential pressure switching with an integral explosion-proof and weatherproof housing. Its external screw allows setpoint adjustment without opening the enclosure. The switch uses a fluorosilicone diaphragm and 1/8 in. female NPT pressure connections. It is designed for HVAC and process applications using air or compatible gases.
Key Features:
-
Differential Pressure Monitoring: Detects pressure differences in air and compatible non-combustible gases for industrial control applications.
-
Adjustable Pressure Range: Provides setpoint adjustment from 0.4 to 1.6 in. w.c. (inches of water column).
-
Explosion-Proof Enclosure: Features a rugged housing designed for specified hazardous-location installations.
-
SPDT Switch Output: Includes a single-pole double-throw relay contact with common, normally open, and normally closed terminals.
-
High Electrical Rating: Rated up to 15 A at 125, 250, or 480 VAC, 60 Hz, for specified resistive loads.
-
External Setpoint Adjustment: Allows pressure threshold adjustment using a screw on top of the enclosure.
-
Industrial Pressure Connections: Uses 1/8-inch female NPT process connections for high- and low-pressure ports.
-
Weather and Hazard Protection: Features NEMA 3, NEMA 7, and NEMA 9 enclosure ratings, with applicable UL, CSA, FM, and CE approvals.
-
Automatic Reset: Returns the switch to its normal state when pressure moves back across the switching threshold.
-
Industrial HVAC Applications: Suitable for pressure monitoring in ventilation systems, filter differential pressure applications, and compatible process equipment.
The 1950-1-2F delivers dependable differential pressure switching for industrial HVAC, ventilation, and hazardous-area process applications.
Description
Dwyer 1950-1-2F is an explosion-proof differential pressure switch for air and compatible gases. It has an adjustable 0.4–1.6 in. w.c. setpoint range and an SPDT contact with 10G mica-silver construction.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Dwyer |
| Category | Pressure Control |
| Part Number | 1950-1-2F |
| Subcategory | Explosion-Proof Differential Pressure Switches |
| Series | 1950 |
| Device type | Differential pressure switch |
| Setpoint range | 0.4–1.6 in. w.c. |
| Approximate deadband | 0.15 in. w.c. at minimum setpoint; 0.20 in. w.c. at maximum |
| Switch contact | SPDT |
| Contact construction | 10G mica silver |
| Diaphragm material | Fluorosilicone |
| Pressure connection | 1/8 in. female NPT |
| Enclosure | Integral explosion-proof and weatherproof housing |
| Compatible media | Air and compatible gases |
| Weight | 3.25 lb |
Information About 1950-1-2F
The 1950-1-2F belongs to Dwyer’s Series 1950 pressure switch line, which combines differential pressure switching with an integral explosion-proof and weatherproof housing. Its external screw allows setpoint adjustment without opening the enclosure. The switch uses a fluorosilicone diaphragm and 1/8 in. female NPT pressure connections. It is designed for HVAC and process applications using air or compatible gases.
Key Features:
-
Differential Pressure Monitoring: Detects pressure differences in air and compatible non-combustible gases for industrial control applications.
-
Adjustable Pressure Range: Provides setpoint adjustment from 0.4 to 1.6 in. w.c. (inches of water column).
-
Explosion-Proof Enclosure: Features a rugged housing designed for specified hazardous-location installations.
-
SPDT Switch Output: Includes a single-pole double-throw relay contact with common, normally open, and normally closed terminals.
-
High Electrical Rating: Rated up to 15 A at 125, 250, or 480 VAC, 60 Hz, for specified resistive loads.
-
External Setpoint Adjustment: Allows pressure threshold adjustment using a screw on top of the enclosure.
-
Industrial Pressure Connections: Uses 1/8-inch female NPT process connections for high- and low-pressure ports.
-
Weather and Hazard Protection: Features NEMA 3, NEMA 7, and NEMA 9 enclosure ratings, with applicable UL, CSA, FM, and CE approvals.
-
Automatic Reset: Returns the switch to its normal state when pressure moves back across the switching threshold.
-
Industrial HVAC Applications: Suitable for pressure monitoring in ventilation systems, filter differential pressure applications, and compatible process equipment.
The 1950-1-2F delivers dependable differential pressure switching for industrial HVAC, ventilation, and hazardous-area process applications.
