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OEM Mechanical Pressure Switch for Harsh Environments
8.5 to 50 psi, fixed deadband
Volume discounts available
Volume Discount Schedule
| Quantity | Price each |
|---|---|
| 1-24 | $165.72 |
| 25-49 | $157.43 |
| 50-99 | $154.12 |
| 100-199 | $147.49 |
| 200+ | $144.18 |
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- UL and CSA Marked
- Easy Adjustment with Locking Set Screw
- Rugged Industrial Design
- Standard 1 /2 " Female Conduit Fitting for Electrical Termination
PSW-804 Model Options
View all modelsEdit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.
*Highlighted options are not compatible. Please select a different combination.
Pressure Range
Pressure Type
Deadband Range
Switch Type
Pressure Port Size
Pressure Port Type
Deadband
- Contact Blocks 5 A maximum @ 125/250 Vac
- Maximum Ambient Temperature 75 {C} (167 {F})
- Maximum Rating 5 A maximum @ 125/250 Vac
- Minimum Ambient Temperature -20 {C} (-4 {F})
- Pressure Type Economical Industrial Pressure Switches for Vacuum to 7500 psi
- Pressure Units PSIG
- repeatability +/-1% of Span
- Sensor Type diaphragm piston
The PSW-800 Series are economical pressure switches which feature an easy-to-adjust setpoint with locking set screw. They utilize a sealed piston or diaphragm-piston design, which is ideally suited for harsh environments. All models come with 300 mm (12') color-coded leads and a ½' 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
Contact Rating: 5 amp max @ 125/250 Vac, silver serrated contacts 3 amps max @ 28 Vdc
Temp. Range:
Vacuum Range: -20 to 75°C (-4 to 167°F)
≤500 psi: -30 to 75°C (-22 to 167°F)
≥600 psi: -40 to 75°C (-40 to 167°F)
Thermal Effects: <1% for 25°C (45°F) change
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: brass, Buna-N
≥600 psi: brass, Buna-N and stainless steel
Pressure Port: ¼ NPT male
Electrical Connection: 300 mm (12') free leads with ½' female conduit fitting
UL Marked: Number: E105651
CSA Marked: File: 216524
Housing: Open type plastic housing
Weight: 0.4 kg (0.95 lb)
SPECIFICATIONS
Setpoint Repeatability:
Diaphragm Models (PSW-801 to PSW-807): ±1% of span
Piston Models (PSW-808 to PSW-811): ±1.5% of span
Contact Rating: 5 amp max @ 125/250 Vac, silver serrated contacts 3 amps max @ 28 Vdc
Temp. Range:
Vacuum Range: -20 to 75°C (-4 to 167°F)
≤500 psi: -30 to 75°C (-22 to 167°F)
≥600 psi: -40 to 75°C (-40 to 167°F)
Thermal Effects: <1% for 25°C (45°F) change
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: brass, Buna-N
≥600 psi: brass, Buna-N and stainless steel
Pressure Port: ¼ NPT male
Electrical Connection: 300 mm (12') free leads with ½' female conduit fitting
UL Marked: Number: E105651
CSA Marked: File: 216524
Housing: Open type plastic housing
Weight: 0.4 kg (0.95 lb)
RoHS 2015/863 - View Certificate
UL Listed
CSA
Do the pressure and vacuum switches have an IP rating?
Although the PSW-800 are sealed very well they do not have an actual IP or NEMA environmental rating.
Date published: 2022-01-28
Can these be used with 125 VDC? Are they compatible with diesel fuel?
The PSW-800 Series pressure switches cannot be used with 125 VDC. Maximum rating for DC Voltage use is 3A max @ 28VDC. The wetted parts would be compatible with diesel oil.
Date published: 2024-03-13
What is the thread size? I am looking to purchase the appropriate tap to thread this pressure switch into a schedule 40 pipe. Usually it’s pre threaded but this one was not.
The process connection thread on all ranges of the PSW-800 Series pressure switches is a 1/4-18 NPT male thread
Date published: 2020-12-03
Are these switches compatible with DOT 3 brake fluid?
No they are not. The Buna-N material in the switches wetted parts will be attacked by the brake fluid
Date published: 2020-08-25
