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General Purpose Flow Switch, NEMA1

Price $168.25 / each

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CEDAR RAPIDS branch 112

  • Item # 2RUL3
  • Mfr. Model # FS251
  • NSN # 5930-00-851-1923
  • UNSPSC # 39121538
  • Catalog Page # 3755
  • Shipping Weight 1.99 lbs.
Country of Origin USACountry of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Technical Specs

  • ItemGeneral Purpose Switch
  • Min. Flow Rate (GPM)5.8
  • Max. Flow GPM131
  • Connection Size (In.)1 MNPT
  • Switch EnclosureNEMA 1
  • Min. Ambient Temp. (F)32
  • Min. Fluid Temp. (F)32
  • Max. Fluid Temp. (F)250
  • Max. Pressure (PSI)160
  • Operating Velocity Range (FPM)130 to 280
  • Switch TypeSingle Pole Double Throw Snap Switch
  • Contact Rating7.4A @ 120 VAC - Full Load, 120 VA @ 120 or 240 VAC - Pilot Duty
  • Body MaterialBrass
  • Material of ConstructionBrass, SS, EPDM
  • Wetted MaterialsBrass, Stainless Steel, EPDM
  • Max. Operating Velocity (FPM)600
  • Voltage120/240
  • For Use WithWater Systems
  • ApplicationSignal Lights, Alarms, Motors, Automatic Burners and Metering Devices
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    • FS251

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    Rated 4.7 out of 5 by 3reviewers.
    Rated 5 out of 5 by Work great, the only manufacture we use at the hospital and our Account Manager has been anle to get us the best price we have found. April 25, 2013
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    Product Q&A

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    i want the details about the connection of flow switch to a 3-phase motor starter panel for a pump.
    2 years, 6 months ago
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    I do not know if I can answer that, simply because the words 3 Phase Power. Using this flow switch you will have to develop a by pass or what is called a delay circuit, this delay circuit will allow a period of time to pass before it look at the position of the flow switch. This is how you use this in a motor or pump control circuit, you would hook this to the coil circuit and interrupt the coil power if the pump is not deliveing flow.

    I hope this answers your question, thanks for using Grainger Ask & Answer!

    2 years, 6 months ago
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