Dwyer CXA Series Water Pump Pressure Switch Datasheet
- June 4, 2024
- Dwyer
Table of Contents
CXA Series Water Pump Pressure Switch
Datasheet
CXA Series Water Pump Pressure Switch
The Series CXA Water Pump Pressure Switch has been proven reliable for controlling automatic water systems. These switches are very popular for use on water well pumps and pumping systems. The set point and deadband are both easily adjustable via screws inside the cover. For ease of installation, the switches come with a 1/4˝ female NPT process connection and can be mounted in any orientation. The series CXA’s simple design makes it a great switch for an installer at any skill level.
MODEL CHART
| Switch| Range| Approx. Adjustable| Max. Pressure
Model| Type| psig (bar)| Deadband psig (bar)| psig (bar)
CXA-S1| NC
NC
NC
NO
NO
NO| 15-80 (1.0-5.5)| 15-30 (1.0-2.1)| 129 (8.9)
CXA-S2| 30-100 (2.1-6.9)| 20-35 (1.4-2.4)| 179 (12.3)
CXA-S3| 35-150 (2.4-10.3)| 30-40 (2.1-2.8)| 204 (14.1)
CXA-R1| 15-80 (1.0-5.5)| 15-30 (1.0-2.1)| 129 (8.9)
CXA-R2| 30-100 (2.1-6.9)| 20-35 (1.4-2.4)| 179 (12.3)
CXA-R3| 35-150 (2.4-10.3| 30-40 (2.1-2.8)| 204 (14.1)
INSTALLATION/MOUNTING
The switch can be pipe mounted in any position. Do not twist the case when
installing.
Use a wrench on the pressure connection flats.
WIRING
All wiring must conform to the National Electrical Code and local regulations.
Do not install the control to handle loads in excess of the electrical rating
shown in specifications or as indicated on instructions inside the control
cover.
SPECIFICATIONS
Service: Compatible liquids and gases.
Wetted Materials: Silicone, steel, and SS.
Temperature Limits: 140°F (60°C).
Pressure Limits: See model chart.
Enclosure Rating: General purpose.
Repeatability: ±5 psig (±0.3 bar).
Switch Type: DPST snap action (see model chart).
Electrical Ratings: 20 A @ 120 VAC, 12 A @ 240 VAC, 9.6 A @ 240 VAC (3
phase), 8.6 A @ 32 VDC, 3.1 A @ 120 VDC, 1.6 A @ 240 VDC.
Electrical Connections: Screw terminal.
Conduit Connection: 7/8˝ hole for 1/2˝ conduit hub (2 places).
Process Connection: 1/4˝ female NPT.
Mounting Orientation: Switch can be installed in any position.
Set Point Adjustment: Internal screws.
Deadband: See model chart.
Weight: 0.75 lb (0.34 kg).
Agency Approvals: CE.
CAUTION
No lubrication or periodic servicing is required. Mount the control securely.
Never exceed the electrical rating for the switch. Use the control only with
compatible media.
MAINTENANCE
Upon final installation of the Series CXA Water Pump Pressure Switch, no
routine maintenance is required. A periodic check of the system calibration is
recommended.
The Series CXA is not fielded serviceable and should be returned if repair is
needed (field repair should not be attempted and may void the warranty). Be
sure to include a brief description of the problem plus any relevant
application notes. Contact customer service to receive a return goods
authorization number before shipping.
©Copyright 2021 Dwyer Instruments, Inc.
DWYER INSTRUMENTS, INC.
Phone: 219-879-8000
Fax: 219-872-9057
www.dwyer-inst.com
e-mail: info@dwyermail.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>