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Gray zinc alloy grounding hub with 3/4 inch NPT threads, 1 1/2 inch length, insulated, CSA and UL listed

Hubbell Incorporated

Hubbell Incorporated RACO 1703 IMC Grounding Hub 3/4 in Threaded Zinc Alloy Gray

SKU CH-6G8C-5CDCD

A zinc-alloy grounding hub with ¾-inch NPT threads, CSA-certified and UL 514B listed for RMC and IMC conduit

  • TypeCable Management & Conduit
  • Color MappingGray
  • UL 514B and CSA certified for code compliance
  • 3/4 in NPT threaded hub fits RMC and IMC conduit
  • Zinc alloy construction with plain finish resists corrosion
  • Insulated throat protects conductors during pulling
  • Compact 1 21/32 in profile saves space in tight enclosures

Electrical Grounding Hub 3/4 in

The RACO 1703 IMC grounding hub connects threaded rigid metal conduit or intermediate metal conduit in electrical installations. It provides a secure mechanical bond and grounding path for trade size 3/4 inch conduit systems. The zinc alloy body with plain finish suits commercial and industrial wiring work. Insulated throat protects conductors during pulling.

Thermal Noise Power Draw

This passive conduit fitting generates no heat, noise or electrical draw during operation. It serves solely as a mechanical and grounding junction between conduit sections. The 0.25 lb zinc construction adds negligible load to the mounting surface. No active components are present to create thermal or acoustic output.

Replaces Non-Insulated Hubs

The hub upgrades from basic non-insulated fittings where code requires an insulated throat to prevent conductor insulation damage. It is not suited for applications needing PVC-coated or stainless steel hubs for corrosive environments. Buyers requiring larger trade sizes or set-screw connection types must select a different fitting.

Highlights

  • UL 514B and CSA certified for code compliance
  • 3/4 in NPT threaded hub fits RMC and IMC conduit
  • Zinc alloy construction with plain finish resists corrosion
  • Insulated throat protects conductors during pulling
  • Compact 1 21/32 in profile saves space in tight enclosures

Specifications

TypeCable Management & Conduit
BrandRACO
Color MappingGray

Questions about this item

How is the 3/4 in NPT threaded hub installed on RMC conduit and what step is often missed?

Thread the female end onto the conduit until tight, then secure the included clamp; the insulated throat must face the wire entry to prevent insulation damage.

What maintenance or replacement will the zinc alloy hub need over time?

Inspect the plain finish for corrosion and verify the clamp torque periodically; replace the hub if threads show wear or the insulated throat cracks.

What limit appears first when the hub carries sustained loads in a 3/4 in trade-size run?

The 0.25 lb zinc body and insulated throat set the mechanical and thermal limit before the CSA and UL 514B ratings are reached.

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