Different types of connectors

Step-by-Step

In most cases, use a simple straight connector that holds the cable in place either by clamping it or with a setscrew. In some tight situations, you may need to use a 90-degree or 45-degree connector. To install a connector, choose the side of the box you wish to access, and remove the knockout. Cut the cable to length and trim off the armored sheathing (see Working with BX, Greenfield, related projects).

Installing a bushing

Pull the brown paper surrounding the wires in BX back about an inch inside the armor. This leaves room to slip in a bushing. If your cable has a bonding strip, fold it back as shown.

Attaching the connector

Slip on a connector, making sure the bushing is in place. Tighten the clamp or setscrew. Armored cable and conduit are self-grounding, so you don't need a grounding wire. Some codes require that the bonding strip be attached to the tightening screw.

Inseting the connector

Slip the wires and connector into a knockout hole, slip on a locknut, and tighten with your fingers. As with all wiring, connections should be made only in boxes.

Tightening the locknut

Tighten the locknut with a hammer and screwdriver. Finally, tug on the cable to make sure everything is securely fastened.