• IMC/Rigid Conduit Male Enlarger
  • Type Threaded
  • Large End Trade Size 1 Inch
  • Small End Trade Size 3/4 Inch
  • Size 1-11/16 Inch Dia
  • Material Dura Plated Malleable Iron
  • Standard Package 50
  • Approval UL, CSA
  • Used On IMC/Rigid Conduit
  • Applicable Standard NEC 501-4(B), NEC 502-4(A), NEC 502-4(B), NEC 503-3(A), NEC 503-3(B)

Features / Benefits

  • Adapt an Outlet Hole to the Next Larger Size of Conduit
  • Rough Ends of Conduit Carefully Covered by Built-In Bushing
  • Suitable for Use in Hazardous Locations Where General Purpose Equipment is Specifically Permitted by the NEC
Unistrut is the original metal framing system featuring a unique Weldless connection. The Unistrut system eliminates welding and drilling, and is easily adjustable and reusable for infinite configurations. Over time, our brand has evolved from a simple connection concept to a comprehensive engineered building and support system featuring a robust line of channels, fittings, fasteners, hangers, pipe clamps, and accessories. Backed by our worldwide network of engineering and distribution centers, we provide customers with total-resource capability, making Unistrut the brand everyone asks for by name"


$8.12 / EA
Availability: Currently out of stock
  Thomas & Betts
More Information
Commodity Level DescripSteel Rigid Conduit Fittings
Brand NameHubbell-Pro, Series 1221
ManufacturerThomas & Betts
Commodity Code22100
Insulation TypeVinyl Insulated
Hole/Bolt Size1/4 Inch
Large End Trade Size1 Inch
Color CodeYellow
Cable Size0.85 to 1 Inch
Bend Radius7.25 Inch
End StyleThreaded
Cord Size0.625 to 0.75 Inch
Connector Type90 Deg Male
Wall Thickness0.085 Inch
Throat TypeInsulated
Thread Size3/4 Inch NPT
Small End Trade Size3/4 Inch
Mesh TypeDouble Weave
Mesh MaterialStainless Steel
Mesh Length8 Inch
FinishFlo Coat Hot Galvanized
EnclosureNEMA 4/4X/12/13
Diameter1-5/8 Inch
Current Rating20 Ampere
InstallationDirect Burial/Concrete Encasement
Inner Diameter1.5 Inch
Height1-17/64 Inch
Container TypeCan
Container Size16 Oz
Capacity13 Cu Inch
Body MaterialDie-Cast Zinc
Bezel MaterialChrome
Bend Angle90 Degree
ApprovalUL, CSA
Constructional FeatureAcid Resistant, Corrosion Resistant, Oil Resistant, Sunlight Resistant, Vapor Resistant
Connector MaterialNylon
Applicable StandardANSI C80.6
Knockout Size(3) 1/2 Inch Conduit Bottom, (3) 1/2 Inch Conduit Sides, (2) 1/2 Inch Conduit Ends
Width3/4 Inch
Power Rating1 HP at 120 V, 2 HP at 277 V
Outer Diameter1.638 Inch
Operation TypeSingle Pole
Size1-11/16 Inch Dia
Voltage Rating120 to 277 VAC
Used OnIMC/Rigid Conduit
Trade Size1 Inch
Thickness0.14 Inch
Temperature Rating-20 to 80 Deg C
Standard Package50
Number of Positions2
Maximum Conductor Size10 AWG
Maximum Cable Outer Diameter3.99 Inch
MaterialDura Plated Malleable Iron
Load Rating2900 Pound Pullout/350 Pound Slip Along/270 Pound Slip Through (Average Ultimate Load), 500 Pound Pullout/70 Pound Slip Along/50 Pound Slip Through (Design Load)
Lens MaterialPlastic
Lens ColorAmber
Length3-13/16 Inch
Lamp TypeIncandescent
Lamp Input Type120 V Transformer
Minimum Cable Outer Diameter3.5 Inch
Minimum Conductor Size12 AWG
Number of Gangs1
Mounting9/16 Inch Angled Offset Bracket
Additional InfoApplicable Standard NEC 501-4(B), NEC 502-4(A), NEC 502-4(B), NEC 503-3(A), NEC 503-3(B)
Add SpecAdd Spec
Catalog PagesCatalog Pages
install instinstall inst
Specification SheetSpecification Sheet
Spec URLSpec URL
Length10 FT
Width1.25 Inches
Height1.25 Inches