PSW-691-N1
Pressure Switch, Gauge, 1/8"-27 MNPT, 0.8 psi, 30 psi, SPST
- Manufacturer: OMEGA
- Product type: Pressure Switches
- SVHC: No SVHC (04-Feb-2026)
- Deadband Max: -
- Deadband Min: -
- Pressure Type: Gauge
- Product Range: PSW-690 Series
- Sensor Mounting: Stud
- Pressure Port Size: 1/8"-27
- Pressure Port Type: 1/8"-27 MNPT
- Contact Configuration: SPST
- Electrical Connection: Pigtail Leads
- Switching Current Max: 1A
- Switching Voltage Max: -
- Operating Pressure Max: 30psi
- Operating Pressure Min: 0.8psi
- Pressure Fitting Style: 1/8"-27 MNPT
- Operating Temperature Max: -
- Operating Temperature Min: -
- Transducer Connection / Termination: Pigtail Leads
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 215.02 € |
| Current stock | 10+ |
| Lead time | 30 days |
**H** ## _**HIGH PURITY, all sTaInless sTeel PRessURe anD VaCUUM sWITCHes**_ ## _**Vacuum to 500 psi**_ ## _**PsW-690 series**_ **PSW-696-V5, shown actual size.** ## **SPECIFICATIONS** - U **All Stainless Steel Wetted Parts** - U **Sensing Element Capsule, Electron Beam Welded** - U **Helium Leak Tested 4 x 10[-9] STd CC/sec** - U **External Pressure Scale and Pointer For Easy Set Point Adjustment** - U **Available with[1] ⁄4 VCR Male or[1] ⁄8-27 NPT Male Fittings** - U **NEMA 4 Enclosure** - U **Available with 1 or 5 A Switch** **Process Temp:** -54 to 107°C (-65 to 225°F); setpoint change of up to 2% of sensor capacity may be anticipated when switch is used either below -23°C or above 51°C **Cycling:** Not to exceed 20 cycles/min, 1 million cycles **Proof Pressure:** 150% max pressure **Wetted Parts:** 17-7 pH electron beam welded, 303 SS fitting **Enclosure:** 303 Stainless Steel body, zinc alloy with chromate finish locking ring and switch housing, valox cap **dimensions:** 51 L x 29 mm Dia (2 x 1.125") with NPT fitting; 60 L x 29 mm Dia (2.375 x 1.125") with VCR fitting **Weight:** Approx. 85g (3 oz) **Pressure Port:**[1][⁄] 8-27 MNPT or[1][⁄] 4 VCR **Electrical:** 300 mm (12") pigtail leads, 20 AWG, polyvinyl insulated ## **Wiring Code:** **Pressure Switch:** Black = Common, Red = N/C, White = N/O **Vacuum Switch:** Black = Common, Red = N/O, White = N/C ## **To Order** |**Too Orderrderderr**|**Too Orderrderderr**|**Too Orderrderderr**|**Too Orderrderderr**|**Too Orderrderderr**| |---|---|---|---|---| |**MOdEL NO.**|**AdJUSTABLE RANGE**||**SETPOINT**<br>**REPEATABILITY**|**MAX**<br>**PRESSURE**| ||<br>**dECREASING**|**INCREASING**||| |**GAGE PRESSURE**|**RESWITCHES**<br>**1⁄8 NPT FITTING (psig)**|**g)**||| |**PSW-691-N[*]**<br>~~a~~<br>~~Re~~|0.8to 28.5<br>~~GO~~<br>~~QO~~|1.6to30.0<br>~~GO~~<br>~~QO~~|±0.6<br>~~QO~~|30<br>~~QO~~| |**PSW-692-N[*]**<br>~~Re~~<br>~~es~~|2.0to 48.0<br>~~QO~~<br>~~Se~~|3.0to50.0<br>~~QO~~<br>~~QO~~|±1.0<br>~~QO~~<br>~~QO~~|50<br>~~QO~~| |**PSW-693-N[*]**<br>~~Re~~<br>~~es~~<br>~~Re~~|3.0to96.5<br>~~QO~~<br>~~Se~~<br>~~QO~~|4.5to 100.0<br>~~QO~~<br>~~QO~~<br>~~QO~~|±2.0<br>~~QO~~<br>~~QO~~<br>~~QO~~|100<br>~~QO~~<br>~~QO~~| |**PSW-694-N[*]**<br>~~es~~<br>~~Re~~<br>~~es~~|7.5to 242.5<br>~~Se~~<br>~~QO~~<br>~~rr~~|9.7 to 250<br>~~QO~~<br>~~QO~~<br>~~rs~~|±5.0<br>~~QO~~<br>~~QO~~<br>~~(RUD~~|250<br>~~QO~~| |**PSW-695-N[*]**<br>~~Re~~<br>~~es~~|15.0to 485.0<br>~~QO~~<br>~~rr~~|20.0to500.0<br>~~QO~~<br>~~rs~~|±10.0<br>~~QO~~<br>~~(RUD~~|500<br>~~QO~~| |**GAGE PRESSURE**<br>~~es~~<br>~~ee~~|**RESWITCHES**<br>**1⁄4 VCR FITTING (psig)**<br>~~rr~~<br>~~GO~~|**g)**<br>~~rs~~<br>~~GO~~|~~(RUD~~|| |**PSW-691-V[*]**<br>~~ee~~<br>~~Re~~|0.8to 28.5<br>~~GO~~<br>~~QO~~|1.6to30.0<br>~~GO~~<br>~~QO~~|±0.6<br>~~QO~~|30<br>~~QO~~| |**PSW-692-V[*]**<br>~~ee~~<br>~~Re~~<br>~~es~~|2.0to 48.0<br>~~GO~~<br>~~QO~~<br>~~Se~~|3.0to50.0<br>~~GO~~<br>~~QO~~<br>~~QO~~|±1.0<br>~~QO~~<br>~~QO~~|50<br>~~QO~~| |**PSW-693-V[*]**<br>~~Re~~<br>~~es~~<br>~~Re~~|3.0to96.5<br>~~QO~~<br>~~Se~~<br>~~QO~~|4.5to 100.0<br>~~QO~~<br>~~QO~~<br>~~QO~~|±2.0<br>~~QO~~<br>~~QO~~<br>~~QO~~|100<br>~~QO~~<br>~~QO~~| |**PSW-694-V[*]**<br>~~es~~<br>~~Re~~<br>~~es~~|7.5to 242.5<br>~~Se~~<br>~~QO~~<br>~~Ss~~|9.7 to 250<br>~~QO~~<br>~~QO~~<br>~~Ss~~|±5.0<br>~~QO~~<br>~~QO~~<br>~~Ss~~<br>~~(RUS~~|250<br>~~QO~~<br>~~Ss~~| |**PSW-695-V[*]**<br>~~Re~~<br>~~es~~|15.0to 485.0<br>~~QO~~<br>~~Ss~~|20.0to500.0<br>~~QO~~<br>~~Ss~~|±10.0<br>~~QO~~<br>~~Ss~~<br>~~(RUS~~|500<br>~~QO~~<br>~~Ss~~| |**VACUUM SWITCHE**<br>~~es~~<br>~~es~~|**HES**<br>**1⁄8 NPT FITTING (inHg)**<br>~~Ss~~<br>~~GO~~|~~Ss~~<br>~~GO~~|~~Ss~~<br>~~(RUS~~<br>~~GO~~|~~Ss~~<br>~~GO~~| |**PSW-696-N[*]**<br>~~es~~|1.6to 27.0<br>~~GO~~|2.7 to 28.2<br>~~GO~~|±1.2<br>~~GO~~|29.9<br>~~GO~~| |**VACUUM SWITCHE**<br>~~es~~|**HES**<br>**1⁄4 VCR FITTING (inHg)**<br>~~GO~~|~~GO~~|~~GO~~|~~GO~~<br>~~(~~| |**PSW-696-V[*]**<br>~~a ~~|1.6 to 27.0<br> ~~nO~~|2.7 to 28.2<br>~~nO~~|±1.2<br>~~nO~~|29.9<br>~~nO~~<br>~~(~~| _Comes complete with operator’s manual._ _**[*]** Specify_ _**“-1”** for 1 A or_ _**“-5”** for 5 A switch._ _**Ordering Examples: PSW-692-N1,** switch for maximum system pressure of 30 psig with[1] ⁄8 NPT fitting and 1A switch._ _**PSW-696-N5,** switch with[1] ⁄8 NPT fitting and 5A switch._ **H-14**
Updated at June 9, 2026
Omega is a globally recognized leader in the design and manufacture of state-of-the-art products for process measurement and control. Renowned for its engineering expertise, the company provides highly reliable solutions for monitoring critical parameters such as temperature, humidity, pressure, strain, and flow across diverse industrial applications. Our extensive selection of Omega products is focused on the brand's core strengths in sensing and automation technologies. The range features a vast array of high-precision temperature sensors, including industry-standard thermocouples and RTDs, supported by a comprehensive selection of essential sensor accessories. To complement these measurement devices, we offer a substantial lineup of robust temperature controllers and advanced pressure transducers engineered to maintain precise conditions in demanding environments. Beyond primary sensing and control, the Omega portfolio encompasses sophisticated panel instrumentation for clear process visualization, alongside highly accurate force sensors and load cells. The offering is completed by reliable signal converters, data acquisition tools such as dataloggers, and fundamental connectivity components, providing professionals with the specialized equipment necessary to build complete, end-to-end industrial control systems.
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