CD1H, CD2H Series
- High reliability
- Extremely versatile
- Calibrated dial for easy setpoint adjustment
- Ideal for pressure or vacuum
- Diaphragm Seal Option Available
Barksdale's CD1H and CD2H Housed Diaphragm Pressure Switches provide an ideal solution for pressure control applications requiring tamper proof external adjustment and environments which require water-tight NEMA 4 housings. These pressure switches are available in single or dual control settings for both positive pressure and vacuum models, to 150 psi. These snap-action switches may be wired normally open or normally closed through a 3/4"-14 NPT conduit connector to free leads to 18". All models feature self-locking set screw adjustment and dials which are calibrated for increasing setting. For applications requiring a highly accurate switch in a durable package, Barksdale's CD1H and CD2H Housed Diaphragm Pressure Switches are the ideal choice. Stripped models are also available.
Specifications
General Specifications*
| Accuracy: | +/- 0.5% of the adjustable range |
| Switch: Type: Rating: |
Single pole double throw (SPDT) single or dual circuit 10 amps @ 125/250 VAC, 3 amps @ 480 VAC (Class A or H limit switch); Consult sales drawing for ratings of optional limit switches. |
| Wetted Parts: Process Fitting: Diaphragm: Enclosure: |
304 stainless steel 17-7 PH stainless steel Anodized aluminum |
| Electrical Connection: | Free leads approximately 18″ long, 16 AWG through 3/4″ NPT conduit connector. |
| Enclosure Ratings: | NEMA 4 |
| Pressure Connection: | 1/4″ NPT female |
| Approvals: UL: |
All models are Underwriters’ Laboratories listed in the Electrical Construction Materials Directory under Industrial Control Equipment, float and pressure-operated; File E42816, and Canadian Standards Association listed under Guide 380-W-1.16, Class 3231, File 22355. |
| Temperature Range: Operating: Storage: |
-40° to +165°F (-40° to +74°C) -65° to +200°F (-54° to +93°C) |
| Adjustment Instructions: Pressure:Vacuum: |
Turn self-locking adjustment screw counter clockwise to increase pressure settingTurn self-locking adjustment screw clockwise to increase vacuum setting |
| Options: | -Cleaned for Oxygen Service -1/2″ NPT Pressure Port -NEMA 4X enclosure |
| Shipping Weight: | Approximate 1.75 lbs. |
| * See product confi gurator for additional options. | |
Wiring Code
| Lead | Circuit #1 | Circuit #2 | ||
|---|---|---|---|---|
| Pressure | Vacuum | Pressure | Vacuum | |
| Normally Closed | Blue | Red | Orange | Yellow |
| Common | Purple | Purple | Brown | Brown |
| Normally Open | Red | Blue | Yellow | Orange |
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