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Steel electroplated reducing bushing 3/4 inch to 1-1/2 inch threaded

Appleton Century Crofts

Appleton Century Crofts RB150-75 IMC Reducing Bushing conduit

SKU CH-5HYG-8XHE2

A reducing bushing connects 3/4 in female to 1-1/2 in male threaded IMC conduit in hazardous locations

  • Product typeCable Management & Conduit
  • Reduces conduit size from 1-1/2 in to 3/4 in for flexible routing
  • Threaded FNPT to MNPT ends ensure secure hazardous-location connections
  • Electroplated steel resists corrosion in harsh environments
  • Rated for Class I Division 1 and 2 hazardous areas
  • Compact 13/16 in length fits tight enclosures

Appleton RB150-75 IMC Reducing Bushing

The Appleton RB150-75 is a threaded reducing bushing designed for IMC conduit systems. It connects a 3/4 in female NPT fitting to a 1 1/2 in male NPT fitting in hazardous locations. Electrical contractors use it to transition between conduit trade sizes while maintaining explosion-proof integrity.

Steel construction with electroplated finish

The steel body weighs 0.35 lb and measures 13/16 in overall length. Electroplated finish resists corrosion in harsh industrial environments. No moving parts or active cooling means silent operation and zero power draw during normal use.

Hazardous-location rated for Class I, II, III

Certified for Class I Division 1 and 2 Groups A, B, C, D and Zone 1, 2 Groups IIA, IIB, IIC. Also rated Class II Division 1, 2 Groups E, F, G and Class III. Threaded female-to-male ends allow direct coupling without additional adapters. Not suited for non-threaded conduit or non-hazardous installations requiring simpler fittings.

How it compares

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

Price $5.99
Cheaper than about 80% of the 1,290 comparable items (median $28.99).

Specifications

Product
Brand nameAPPLETON ELECTRIC
Product typeCable Management & Conduit

Questions about this item

How do I install the 1 1/2 in MNPT end into my IMC conduit without cross-threading?

Start the 1 1/2 in male thread by hand until it seats fully, then tighten with a strap wrench on the electroplated steel body; the 13/16 in overall length leaves little leverage, so avoid pipe wrenches that can crush the finish.

Will the electroplated finish on this reducing bushing need recoating after installation in a damp location?

The electroplated steel resists corrosion in Class I, Division 1 and 2 areas; inspect the threads annually and replace the bushing if the plating shows white rust or pitting.

At what point does the 13/16 in length become the limiting factor during a long cable pull?

The short 13/16 in body means the 3/4 in FNPT threads engage fewer turns, so sustained pulling tension can strip the female threads before the conduit yields.

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