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This item has been discontinued and is unavailable for purchase. Check the Alternate Products selection below for options. For more information call 1-800-GRAINGER (472-4643).

Flow Switch, 1 In MNPT

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  • Item # 40G311
  • Mfr. Model # F61MB-1C
  • UNSPSC # 39121538
  • Catalog Page # 4243
  • Shipping Weight 2.38 lbs.
Country of Origin MexicoCountry 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

  • ItemLiquid Flow Switch
  • TypeGeneral Purpose Switch
  • Max. HP1
  • Phase1
  • Hz60
  • Min. Flow Rate (GPM)2.5
  • Max. Flow GPM760
  • Flow Rate2.5 to 760
  • Connection Size (In.)1 MNPT
  • Switch EnclosureNEMA 3R
  • Min. Ambient Temp. (F)20
  • Max. Ambient Temp. (F)140
  • Min. Fluid Temp. (F)20
  • Max. Fluid Temp. (F)250
  • Max. Pressure (PSI)150
  • Switch TypeSPDT
  • Contact Rating16 A @ 120VAC - Full Load / 125 VA @ 24/277 VAC - Pilot Duty
  • Body MaterialBronze
  • Material of ConstructionBronze, Galvanized Steel, Stainless Steel
  • Wetted MaterialsPhosphor Bronze
  • Voltage120-277
  • For Use WithIndicating Fluid Flow with Water, Glycols, and Other Non-Hazardous Liquids
  • ComplianceUL / CSA
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    • F61MB-1C

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