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PSW-800
OEM Mechanical Pressure Switch for Harsh Environments
Models In Stock
- UL and CSA Marked
- Easy Adjustment with Locking Set Screw
- Rugged Industrial Design
- Standard 1 /2 " Female Conduit Fitting for Electrical Termination
PSW-800
From
C$
311.33
Models In Stock
Product Overview
- Control Output SPST Relay
- Electrical Connection 1/2 NPT female Conduit with Wire Leads
- Process Connection Size 1/2 in
- Process Temperature, Max 75 °C
- Switch Rating 5 A maximum @ 125/250 Vac, silver serrated contacts 3 A max @ 28 Vdc
- Switch Type SPST
- Thermal Effects <1% for 25°C (45°F) change
- Wiring/Connector Table Red - N/C, Blue - N/O, Purple - Common
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)
Show Ratings & Reviews
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
Do these switches consume any power?
These switches do not consume any power. They are simple a mechanical switch. Switch rating are 5 Amps for 125/250 VAC or 3 Amps for 28 VDC.
Date published: 2024-11-25
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
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
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