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    Arlington GB5/GBB5/GBB50 Grounding Bridge — Installation Instructions

    August 31, 2026 2 min read

    Installation instructions and catalog specifications for Arlington's GB5, GBB5, and GBB50 Grounding Bridges — intersystem bonding between power and communication grounding systems, meeting 2008 NEC requirements.

    💾 Download Original PDF 🛒 View Product
    Full text manual (for reference)

    Overview

    Arlington's heavy-duty Grounding Bridge (GB5, GBB5, GBB50, and PVC-conduit versions GB5P/GBB5P/GBB50P) provides reliable intersystem bonding between power and communication grounding systems, meeting 2008 NEC ground requirements (250.94). Each unit has four termination points — one more than the NEC requires — with capacity to handle multiple communications hookups: telephone, CATV, or satellite dish.

    Features

    • For indoor or outdoor use
    • Intersystem bonding and grounding conductors: all models accommodate #14 to #4 copper or aluminum, solid or stranded
    • Grounding Electrode Conductor / Equipment Grounding Conductor: GB5 and GBB5 accept #6 to #2; GBB50 accepts #6 to #1/0 (copper or aluminum, solid or stranded)
    • Fast, simple installation
    • Easy access for inspections
    • Textured, paintable plastic cover for good looks
    • PVC conduit adapter versions (GB5P, GBB5P, GBB50P) available for use with PVC conduit

    Catalog / Ordering Information

    Catalog Number UPC / Mfg. #018997 Description Grounding Electrode / Equipment Grounding Conductor
    GB5 76095 Zinc #6 to #2 CU/AL
    GBB5 76096 Bronze #6 to #2 CU/AL
    GBB50 09725 Bronze #6 to #1/0 CU/AL
    GB5P 09720 Zinc w/ conduit adapter #6 to #2 CU/AL
    GBB5P 09721 Bronze w/ conduit adapter #6 to #2 CU/AL
    GBB50P 09726 Bronze w/ conduit adapter #6 to #1/0 CU/AL

    Unit package / standard package quantities: 1 / 10 for all catalog numbers. All models handle #14 to #4 intersystem bonding/grounding conductors.

    Installation — GB5, GBB5, GBB50

    1. Attach the Grounding Bridge to the mounting surface (screws not provided).
    2. Insert the grounding electrode conductor or equipment grounding conductor into the lay-in lug. Tighten the screw.
    3. Attach the textured, paintable cover with the screw provided.
    4. Remove the cover for intersystem utilities (CATV, phone, etc.) — add bonding/grounding conductors, then reinstall the cover.

    Installation — GB5P, GBB5P, GBB50P (PVC Conduit Adapter Versions)

    1. Mount the conduit adapter plate in the desired location (screws not provided), leaving the hole in the lower left open for #2. Install PVC conduit in the adapter with PVC glue (not supplied). Install the grounding electrode conductor in the conduit.
    2. Install the Grounding Bridge onto the grounding electrode/equipment grounding conductor using the lay-in lug; tighten the screw. Using two screws (not provided), attach the Grounding Bridge to the structure through the holes in the adapter plate.
    3. Install the paintable cover.
    4. Remove the cover for intersystem utilities (CATV, phone, etc.) — add bonding/grounding conductors, then reinstall the cover.

    Manufacturer

    Arlington Industries, Inc. — 1 Stauffer Industrial Park, Scranton, PA 18517. Phone: 800-233-4717, Fax: 570-562-0646, www.aifittings.com