PST joins DwyerOmega. Read more>
OEM Mechanical Pressure Switch for Indoor Applications
0.8 to 30 psi, fixed deadband
Volume discounts available
Volume Discount Schedule
| Quantity | Price each |
|---|---|
| 1-24 | $159.89 |
| 25-49 | $151.90 |
| 50-99 | $148.70 |
| 100-199 | $142.30 |
| 200+ | $139.10 |
Added to Your Shopping Cart
Configuration complete.
Please add to cart to keep it or exit the configuration
Please add to cart to keep it or exit the configuration
Failed to Save Configurations, Click on Configure Button Start Again
- Watertight, Corrosion-Resistant Case
- Thin Film Sensor for Long Stabile Life – Minimum 1 Million Cycles at Rated Load
- Reliable in Industrial Environments
- Field Adjustable
PSW-621 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.
Switch Type
Pressure Range
Pressure Type
Deadband Range
Features
Pressure Port Size
Pressure Port Type
Deadband
- Contact Blocks 1 Amp Gold-Plated Contacts for TTL or Dry Contacts
- repeatability ± 2% of max system pressure
SPECIFICATIONS
Process Temp: -55 to 105°C (-65 to 221°F) 2% setpoint shift can occur below -23°C (-10°F) or above 52°C (125°F)
Repeatability: ± 2% of max system pressure
Cycling: Not to exceed 20 cycles/min
Warranty: 3 year/1 million cycles
Proof Pressure: 150% Max Pressure
Wetted Parts: 17-7 PH stainless steel, Loctite sealing compound #271, ZA8 alloy, chromate finish
Enclosure: Zinc alloy, chromate finish
Dimensions: 48 L x 28 mm Dia. (1.9 L x 1.1' Dia.)
Pressure Port: 1/8 -27 NPT Male
Electrical Connection: 300 mm (12') pigtail leads, 20 AWG, polyvinyl insulated
Wiring Code (pressure):
Black = Common
Red = N/C
White = N/O
Wiring Code (vacuum):
Black = Common
Red = N/O
White = N/C
Weight: 57 g (2 oz) (approx)
Process Temp: -55 to 105°C (-65 to 221°F) 2% setpoint shift can occur below -23°C (-10°F) or above 52°C (125°F)
Repeatability: ± 2% of max system pressure
Cycling: Not to exceed 20 cycles/min
Warranty: 3 year/1 million cycles
Proof Pressure: 150% Max Pressure
Wetted Parts: 17-7 PH stainless steel, Loctite sealing compound #271, ZA8 alloy, chromate finish
Enclosure: Zinc alloy, chromate finish
Dimensions: 48 L x 28 mm Dia. (1.9 L x 1.1' Dia.)
Pressure Port: 1/8 -27 NPT Male
Electrical Connection: 300 mm (12') pigtail leads, 20 AWG, polyvinyl insulated
Wiring Code (pressure):
Black = Common
Red = N/C
White = N/O
Wiring Code (vacuum):
Black = Common
Red = N/O
White = N/C
Weight: 57 g (2 oz) (approx)
Rated 3 out of
5
by
MC R from
It works
It works as advertised, but adjustment pressure setting is ballpark.
Date published: 2020-06-24
Rated 5 out of
5
by
KyleM from
Great compact switch
I installed on a vacuum table and it was perfect for the box size and worked very well, also very easy to set. Great product.
Date published: 2016-04-28
RoHS 2015/863 - View Certificate
CE Approved
UKCA
UL cULus Recognized
Can this be used on oxygen line
The PSW-620 cannot be used for oxygen.
Date published: 2023-11-28
what is the wiring for these used in nc operation
Thank you for your question.
The unit can be wired ether normally open or closed.
The n/c is used mostly for decrease in pressure.
Hope this was helpful
Date published: 2022-01-04
