How to connect the armored pigtail junction box

To connect an armored pigtail to a junction box, carefully prepare the cable, install a proper connector or gland, and securely terminate the wires inside the box while ensuring safety and compliance.

Safety First

Before starting, turn off the power at the circuit breaker and verify with a non-contact voltage tester that the wires are de-energized . This step is critical to prevent electrical shock.

Tools and Materials Needed

• Armored cable cutter or hacksaw
• Cable stripper or utility knife
• Screwdriver and locknut wrench
• Armored cable connector or cable gland (matching cable size)
• Insulating anti-short bushing (red head)
• Wire strippers

Step-by-Step Procedure

1. Measure and Cut the Cable Cut the armored cable to the required length, leaving enough slack to work comfortably inside the junction box . 2. Strip the Armor Score the metal sheath about 6–8 inches from the end using a cable ripper or hacksaw, then flex the armor back and forth until it snaps. Remove the excess sheath carefully to expose the insulated conductors and bonding strip . Avoid nicking the insulation. 3. Install the Anti-Short Bushing Slide the insulating bushing onto the cable end so it sits against the cut edge of the armor. This prevents the sharp metal from damaging the wire insulation . 4. Insert the Cable into the Junction Box Open the appropriate knockout in the junction box and insert the prepared cable. Ensure the cable has enough length inside the box for connections . 5. Secure the Cable with a Connector or Gland Use a listed armored cable connector or gland to secure the cable. Tighten the connector or gland body firmly, ensuring the armor is gripped without crushing the inner insulation. This provides strain relief and maintains proper grounding through the armor . 6. Strip the Individual Conductors Using wire strippers, remove the insulation from each conductor to the length required for the terminal connections inside the junction box . 7. Connect the Wires Match the conductors to the corresponding terminals or wire nuts inside the junction box, following color codes or labeling. Ensure all connections are tight and secure . 8. Inspect and Close the Box Check that the anti-short bushing is visible and properly seated, the cable is secure, and no insulation is damaged. Close the junction box cover to complete the installation .

Tips

• Always use connectors or glands rated for armored cable.
• Avoid excessive bending of the cable near the junction box.
• Double-check grounding continuity through the armor if required.
• If unsure, consult a licensed electrician to ensure compliance with local electrical codes. Following these steps ensures a safe, reliable, and code-compliant connection of an armored pigtail to a junction box.