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OEM Mechanical Pressure Switch for Indoor Applications

0.8 to 30 psi, fixed deadband
  • RoHS Icon
  • CE Approved
  • UKCA
  • UL cULus Recognized


Item# PSW-621

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 C$179.19
10-24 C$170.23
25-49 C$166.65
50-99 C$159.48
100-199 C$155.90
200+ C$152.31

In stock

Lead Time (If not in stock): 7 Days
0.8 to 30 psi, fixed deadband PSW-621 PSW-621
  • 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

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Edit 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
Pressure Port Size
Pressure Port Type

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)
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