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Gray zinc-plated steel reducing bushing, threaded 1 inch to 1/2 inch, compact cylindrical form

Hubbell Incorporated

Hubbell Incorporated RACO 1143 wire cap connector

SKU CH-G4XK-1JAN1

A zinc-plated steel reducing bushing connects 1-inch to 1/2-inch threaded RMC conduit

  • Color MappingGray
  • TypeCable Management & Conduit
  • Reduces conduit from 1 in to 1/2 in with threaded NPS connection
  • Zinc-plated steel resists corrosion for long service life
  • cULus listed for safety compliance with RMC and IMC conduit
  • Compact 5/8 in overall length fits tight junction boxes
  • Weighs only .12 lb for easy handling and installation

RACO 1143 reducing bushing for conduit

The RACO 1143 is a steel reducing bushing that connects 1 inch threaded RMC or IMC conduit to 1/2 inch fittings. It is built for electricians and installers who need a durable transition between different conduit trade sizes in commercial or industrial raceway systems. The zinc-plated finish resists corrosion in damp or outdoor locations. cULus listing confirms compliance with applicable safety standards.

Threaded NPS interface limits

The bushing uses NPS straight threads in a female-to-male configuration, so it only mates with matching NPS-threaded conduit and fittings. It will not seal against tapered NPT threads without additional sealing measures. The 5/8 inch overall length and 1 1/4 inch height and width define the space it occupies inside a junction box or enclosure. The 64 inch inside diameter accommodates standard wire fill for the reduced trade size.

Replaces makeshift reducer assemblies

This single-piece fitting replaces field-assembled reducer combinations that add labour time and potential leak paths. The jump is worth it when a clean, code-compliant transition between 1 inch and 1/2 inch RMC or IMC is required and the installer wants a listed component with consistent thread engagement. It is not for buyers who need non-threaded compression or set-screw connections.

Highlights

  • Reduces conduit from 1 in to 1/2 in with threaded NPS connection
  • Zinc-plated steel resists corrosion for long service life
  • cULus listed for safety compliance with RMC and IMC conduit
  • Compact 5/8 in overall length fits tight junction boxes
  • Weighs only .12 lb for easy handling and installation

Specifications

BrandRACO
Color MappingGray
TypeCable Management & Conduit

Questions about this item

Which size should I choose for reducing 1 in conduit to 1/2 in?

The RACO 1143 is a single reducing bushing sized for 1 in to 1/2 in trade-size conduit with NPS threads female to male.

What does the cULus listing mean once the bushing is installed?

It confirms the steel zinc-plated reducer meets UL and CSA safety standards for use with threaded RMC and IMC conduit systems.

What does the NPS thread standard cap in practice?

NPS straight threads provide a mechanical connection for rigid metal conduit; sealing requires thread compound or a separate gasket.

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