Conduit Bushing (Polypropylene)

Conduit Bushing (Polypropylene)

A Conduit Bushing made of polypropylene is a type of fitting used in electrical installations to provide insulation and protection where electrical conduit passes through a knockout hole in a junction box, panel, or enclosure.

Product Details​​

Product Overview

  • Standard: JIS C 8330 (Japan)
  • Material: Polypropylene
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Product Details

Polypropylene is a thermoplastic polymer known for its durability, resistance to chemicals, and electrical insulation properties. Conduit bushings made of polypropylene are lightweight, non-conductive, and resistant to corrosion. The purpose of a conduit bushing is to protect the electrical wires inside the conduit from abrasion and damage when passing through a knockout hole. The polypropylene material helps to insulate the conduit from the surrounding metal, reducing the risk of electrical shorts or interference.

Conduit bushings made of polypropylene are typically designed with a tapered shape to fit snugly into the knockout hole. They are inserted into the hole from the inside of the junction box or enclosure, and the conduit is then threaded through the bushing. The tapered design helps to provide a secure fit and prevent the bushing from slipping or coming loose.

Reference and Packing

Conduit Bushing for IMC Conduit CVL®

Certified conforming to JIS C 8330 by Quatest No.3

Using for

 IMC – UL1242 (USA)

Size (inch)

Product Code








1 1/4


1 1/2




2 1/2




3 1/2



(*) The product code used for RSC steel conduit fitting is changed from “A” to “R”.

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