How to find the right Electrical Conduit Fittings AI guide

Bridgeport Fittings: Steel and die-cast fittings for EMT, rigid and flex.
Halex: Common, widely stocked EMT and flex fittings.
Arlington Industries: Fittings including snap-in and specialty connectors.
Carlon: PVC fittings, conduit bodies and adapters.
Sigma Electric: Rigid, EMT and flex fittings.
Topaz: Contractor-oriented EMT and liquidtight fittings.

Written by an AI model from its trained knowledge.

What the AI looks for in Electrical Conduit Fittings

Conduit type and trade size: Buy fittings listed for the exact conduit (EMT, rigid/IMC, PVC, FMC, LFMC) and trade size. EMT and rigid share nominal sizes but use different connection methods.
Set-screw vs compression: Set-screw EMT fittings are for dry locations. Use compression (raintight) fittings in wet or outdoor locations. Set-screw fittings let water into the raceway.
Steel vs die-cast zinc: Prefer steel fittings where strength, vibration or concrete encasement matter. Die-cast is fine for dry indoor work. Die-cast fittings crack more easily and are not suited to every location.
Conduit body volume: Only splice inside an LB or other conduit body that is marked with its cubic-inch volume, and stay within that volume. Unmarked conduit bodies are for pulling wire, not for splices.
Bushings on larger conductors: Use insulated bushings or throats where 4 AWG or larger conductors enter a box or enclosure. Sharp edges damage heavy conductor insulation.
PVC expansion: Add PVC expansion fittings on long exposed or sun-exposed straight runs where the calculated length change requires them. PVC moves a lot with temperature and can pull out of boxes.

A coupling joins two lengths of conduit. A connector attaches conduit to a box or enclosure through a knockout.