PSA2100W Pressure Switch

The PSA2100W is a weatherproof pressure switch for control systems, with high set-point repeatability and adjustable dead band. The set point is easily adjusted without special tools.
NEMA 4 / 4X · IP66Adjustable ranges: 2–100 psiTemperature: −30 to 205°C
Features
- Welded diaphragm pressure element with SS316 wetted parts.
- Painted die-cast aluminium-alloy housing.
- One SPDT microswitch.
- Adjustable dead band.
- Maximum proof pressure: 1000 psi.
- Other range selections available on request.


Technical specifications
- Microswitch rating
- 20 A at 125/250/480 VAC; 5 A at 125 VDC.
- Process connections
- ½ inch NPT female; ¼ inch NPT female; ½ inch BSP female; ¼ inch BSP female; ½ inch PT female; ¼ inch PT female; M20 × P1.5 female.
- Conduit connections
- Female ¾ inch NPT, ½ inch NPT (standard), or M20 × P1.5.
- Dimensions
- 110 mm wide, 72 mm deep, 184.5 mm overall height. See the original drawing for mounting and connection dimensions.
Pressure ranges and dead band
| Code | Adjustable range (psi) | Adjustable dead band at “E” position | Maximum proof pressure (psi) |
|---|---|---|---|
| 04R | 2–12 | 1.2–3 | 1000 |
| 10R | 2–16 | 1.6–4 | 1000 |
| 20R | 2–20 | 2–5 | 1000 |
| 30R | 3–28 | 2.8–7 | 1000 |
| 40R | 7–100 | 9.9–28.4 | 1000 |
Configure your PSA2100W
Select the ordering options and add your application details. Sightflow will confirm the final specification. Fields marked * are required.
