Dwyer 1900 Series 480V Differential Pressure Switch 15A 110 Psi SPDT for HVAC Systems
Price:
$48- $78/pc
MOQ:
1
Delivery Time:
10 work days
Brand:
Dwyer
Product Description
Dwyer 1900 Series Ultra Micro Differential Pressure Switch
The Dwyer 1900 Series Compact Low Differential Pressure Switch delivers precise pressure monitoring with set points from 0.07 to 20 inches of water and repeatability within 3%. Engineered for air conditioning systems, these switches also perform reliably in fluid handling, refrigeration, ovens, and dryer applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Maximum Current | 15A |
| Maximum Voltage | 480V AC |
| Maximum Working Pressure | 45 IN. W.C. |
| Surge Pressure | 110 psi |
| Switch Type | Single Pole Double Throw (SPDT) |
| Repeatability | ±3% |
| Material | Stainless Steel |
| Agency Approvals | CE, UL, CSA, FM |
Advanced Features
Internal screw adjustment prevents misadjustment
Compact design replaces larger, more expensive switches
Temperature range: -30 to 180°F (-34 to 82.2°C)
Electrical connections: 3 screw terminals (common, normally open, normally closed)
Special Models & Accessories
Manual Reset (MR) Model: Automatically shuts off when pressure exceeds set point range, requires manual reset when pressure drops below set point. Available for single positive pressure ranges (-1, -5, -10, -20).
Explosion Proof Enclosures: Models 1911-CN (NEMA-7 & 9) and 1911-EXPL (Class I, II, III approvals)
Weatherproof Enclosure (WP): NEMA4, IP66 rated for wet and oily environments
Accessories: A-399 Pipe Pressure Detection Kit and A-329 Elbow Fittings available
WARNING: PRODUCT FOR AIR AND COMPATIBLE GAS ONLY
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Mengchuan Instrument Co,Ltd.
Location
58 Longhe Road, Liushi Town,Wenzhou, Zhejiang, China 325604
Contact Person
Kiki