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Aluminium reducing bushing, 1/2 in female to 3/4 in male thread, plain finish

Appleton Century Crofts

Appleton Century Crofts RB75-50A Reducing Bushing 1/2 in x 3/4 in Conduit

SKU CH-M922-G0VCB

Reducing bushing connects 1/2 in female to 3/4 in male threaded conduit for hazardous locations

  • Product typeCable Management & Conduit
  • Reduces conduit size from 3/4 in to 1/2 in for flexible routing
  • Threaded female-to-male ends ensure secure hazardous-location connections
  • Aluminium construction resists corrosion in Class I Division 1 and 2 environments
  • Lightweight at 0.02 lb for easy handling and installation
  • Certified for Class I Zone 1 and 2, Class II and Class III hazardous areas

Reducing Bushing for Hazardous Locations

The Appleton Century Crofts RB75-50A reducing bushing connects 1/2 inch female NPT threads to 3/4 inch male NPT threads. It is built for IMC and threaded RMC conduit systems in hazardous environments. Electrical contractors and maintenance teams use it to adapt conduit sizes safely. The fitting carries Class I, Division 1 and 2 ratings for Groups A, B, C, D and Class II, Division 1 and 2 ratings for Groups E, F, G.

Aluminum Construction and Plain Finish

The bushing is machined from aluminum with a plain finish. This material choice resists corrosion in industrial atmospheres without adding significant weight. The lightweight design at .02 lb eases handling during installation in tight enclosures. No additional coatings or treatments are applied, keeping the surface compatible with standard thread compounds.

Threaded Ends and Compact Length

The 3/4 inch overall length keeps the fitting compact inside junction boxes and conduit bodies. Female-to-male thread orientation allows direct coupling between different trade sizes without extra nipples. The hazardous-location rating covers Class I Zone 1 and 2, Groups IIA, IIB, IIC and Class III areas. Installers must verify conduit compatibility and local code requirements before use.

How it compares

Measured against everything we stock in Electrical Conduit & Fittings, at today’s prices. Recalculated every night.

Price $1.99
Cheaper than about 98% of the 1,290 comparable items (median $28.99).

Specifications

Product
Brand nameAPPLETON ELECTRIC
Product typeCable Management & Conduit

Questions about this item

Will the aluminum threads on the RB75-50A reducing bushing need anti-seize compound replaced during maintenance?

The aluminum construction with plain finish resists corrosion in hazardous locations, so thread lubricant is not a scheduled maintenance item.

What mechanical limit appears first when the 1/2 in FNPT to 3/4 in MNPT bushing is under continuous vibration?

The 3/4 in overall length and threaded engagement provide the primary mechanical stop before any deformation occurs.

How much heat does the 0.02 lb aluminum bushing add to a conduit run operating all day in a Class I Division 1 area?

The lightweight aluminum body dissipates heat passively without measurable temperature rise in the conduit system.

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