Dwyer 1638-0 Adjustable Set-Point Air Pressure Switch
The Dwyer 1638-0 is an adjustable set-point air pressure switch with a SPDT contact configuration. It features a switch voltage of 250V AC and a pressure range of 0.05 in wc to 0.25 in wc, housed in a conduit box…
SKU 3G-OTH-69703
Also listed as: 16380 · 1638 0
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The Dwyer 1638-0 is an adjustable set-point air pressure switch with a SPDT contact configuration. It features a switch voltage of 250V AC and a pressure range of 0.05 in wc to 0.25 in wc, housed in a conduit box with a 1/8 in NPT connection.
Frequently Asked Questions
What is the Dwyer 1638-0 pressure switch used for?
The Dwyer 1638-0 adjustable set-point air pressure switch is used to sense low air pressure changes in HVAC, ventilation, and industrial process control systems. It activates or deactivates circuits at set points between 0.05 in wc and 0.25 in wc, with a SPDT contact and 250V AC rating.
What are the specifications of the Dwyer 1638-0 pressure switch?
The Dwyer 1638-0 has a pressure range of 0.05 in wc to 0.25 in wc, a SPDT contact configuration, switch voltage of 250V AC, and a 1/8 in NPT connection. It is housed in a conduit box. The manufacturer part number is 1638-0.
Where to buy the Dwyer 1638-0 pressure switch worldwide?
3G Electric supplies the Dwyer 1638-0 pressure switch to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source and deliver genuine Dwyer components for HVAC and process control applications.
How to install the Dwyer 1638-0 pressure switch?
Install the Dwyer 1638-0 by connecting the 1/8 in NPT port to the air pressure line. Mount the conduit box securely and wire the SPDT contacts per your control circuit (250V AC max). Adjust the set-point screw within the 0.05 in wc to 0.25 in wc range. Verify operation with a manometer.
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3G Electric supplies Dwyer adjustable set-point air pressure switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
