# Pressure Switch, Gauge, 1/4" MNPT, 70 psi, 250 psi, SPST, 250 VAC

![Product image](https://novapart.co/image/farnell:3867911/)

**URL**: https://novapart.co/products/PSW-806/pressure-switch-gauge-1-4-mnpt-70-psi-250-spdt-vac
**SKU**: PSW-806
**Manufacturer**: OMEGA
**Category**: Sensors & Transducers || Sensors || Pressure Sensors, Transducers || Pressure Switches
**Price**: €281.8800
**Stock**: 10+
**Lead Time**: 106 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | Lead (04-Feb-2026) |
| Deadband Max | 30psi |
| Deadband Min | 10psi |
| Pressure Type | Gauge |
| Product Range | PSW-800 Series |
| Sensor Mounting | Stud |
| Pressure Port Size | 1/4" |
| Pressure Port Type | 1/4" MNPT |
| Contact Configuration | SPST |
| Electrical Connection | Flying Leads |
| Switching Current Max | 5A |
| Switching Voltage Max | 250VAC |
| Operating Pressure Max | 250psi |
| Operating Pressure Min | 70psi |
| Pressure Fitting Style | 1/4" MNPT |
| Operating Temperature Max | 75°C |
| Operating Temperature Min | -30°C |
| Transducer Connection / Termination | 1/2" NPT, Wire Leaded |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3867911/)

## _**Economical industrial PrEssurE sWitcHEs**_ 

## _**Vacuum to 7500 psi**_ 

## _**PsW-800 series**_ 

- U **Easy Adjustment with Locking Set Screw** 

- U **Rugged Industrial Design** U **Standard[1] ⁄2" Female Conduit Fitting for Electrical Termination** 

The PSW-800 Series comprises economical pressure switches that feature an easy-to-adjust setpoint with locking set screw. They have a sealed-piston or diaphragm-piston design, ideal for harsh environments. All models come with 300 mm (12") color-coded leads and a[1] ⁄2" female conduit fitting for electrical connections. 

**SPECIFICATIONS Setpoint Repeatability: Diaphragm Models (PSW-801 to PSW-807):** ±1% of span **Piston Models (PSW-808 to PSW-811):** ±1.5% of span 

## **Hysteresis/Deadband:** 

See “To Order” table at right 

**Contact Rating:** 5 A maximum @ 125/250 Vac, silver serrated contacts 3 A max @ 28 Vdc 

**Temp Range:** -20 to 75°C (-4 to 167°F) (vacuum range); -30 to 75°C (-22 to 167°F) (500 psi and below); -40 to 75°C (-40 to 167° F) (600 psi and above) **Thermal Effects:** <1% for 25°C (45°F) change 

**Proof Pressure:** See “To Order” table **Burst Pressure:** 2x proof pressure 

**Sensor Type: PSW-801 to PSW-807:** 

Diaphragm piston **PSW-808 to PSW-811:** Sealed piston 

**Wetted Parts:** 

**500 psi and Below:** Brass, Buna-N **600 psi and Above:** Brass, Buna-N and stainless steel 

**Pressure Port:**[1] ⁄4 MNPT 

**Electrical Connection:** 300 mm (12") free leads with[1] ⁄2" female conduit fitting **Housing:** Open-type plastic housing **Weight:** 0.4 kg (0.95 lb) 

**==> picture [335 x 493] intentionally omitted <==**

**----- Start of picture text -----**<br>
PSW-805,<br>shown smaller<br>than actual size.<br>1/2  NPT FEMALE<br>CONDUIT FITTING<br>305 (12) FREE<br>LEADS<br>STANDARD<br>29 HEX<br>(1.14)<br>38 DIA.<br>(1.5)<br>121<br>Tm<br>(4.76)<br> WIRE CODE  PRESSuRE vACuuM<br>|<br>Lead  Color  Color 32 HEX<br> (1.26)<br>sims<br>Normally closed  Blue  Red<br>Common  Purple  Purple 1/4  NPT MALE  =<br>PRESSURE PORT<br> Normally open  Red  Blue Dimensions: mm (inch)<br>[T][o] [O][r][de][r]<br>PRESSuRE SETTINg RANgE<br> MODEL   DECREASINg    INCREASINg  DEADBAND  PROOF<br> NuMBER  MIN  MAx  MIN  MAx  RANgE  PRESSuRE<br> vACuuM MODEL (inHg)<br> PSW-801  1  28  4  30  1 to 4  30 psi<br> gAgE PRESSuRE MODELS (psig)<br>es  PSW-802  2.5  ee 12.8  3  15  0.5 to 2.2  1000 psi<br>es  PSW-803   ee 5  es 31  6  35  1.0 to 4.0  1000 psi<br>es  PSW-804   ee 8.5  es 44  10  es 50  1.5 to 6.0  1000 psi<br>es  PSW-805  ee 22.5  es 112  25  ss 125  2.5 to 13  1000 psi<br>es  PSW-806  ee 70.0  220  ss 50  250  10 to 30  1000 psi<br>es  PSW-807  es 110  440  130  500  20 to 60  1000 psi<br>rs  PSW-808  190  es 450  250  es 600  60 to 150  7000 psi<br>es  PSW-809   ee 360  es 1450  430  1700  70 to 250   7000 psi<br>es  PSW-810   ee 1450  es 3900  1650  es 4400  200 to 500  7000 psi<br>TT  PSW-811  3650  6700  4000  7500  350 to 800  12,000 psi<br>Comes complete with operator’s manual.<br>Ordering Example: PSW-804,  10 to 50 psi pressure switch with 1.5 to 6.0 psi deadband<br>range and 1000 psi proof pressure.<br>**----- End of picture text -----**<br>


**H-17** 



## Links

- [View this product on Novapart](https://novapart.co/products/PSW-806/pressure-switch-gauge-1-4-mnpt-70-psi-250-spdt-vac)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/omega/psw-806/pressure-switch-250psi-1port-1/dp/3867911)
---

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