American Fittings Corp GB50BGL Grounding Bushings Threaded Conduit Instruction Manual
- June 13, 2024
- American Fittings Corp
Table of Contents
American Fittings Corp GB50BGL Grounding Bushings Threaded Conduit
Product Information
- Product Series: GB Grounding Bushings Threaded 1/2 to 4 Trade Sizes
- Furnished with Factory Installed AL Lay-In Grounding Lug
- Material: Solid Alloy Steel Construction (AL Option)
- Zinc Plated with Chromate Finish (Galvanizing Option)
- Made in the USA
- Twice the Strength, Durability and Suitability than Cast or Malleable Iron
- Fully Precision Machined Surface with Cut Machined Threads
- Will Not Flatten or Cross Smooth Burrless Surface for Fast & Safe Wire Pulls
- Set Screw for Bonding to Conduit
- Wire Capacity Range #14 to 250mcm
- Available in Copper or Tin Plated Copper
- Industrial SPEC-grade
- Set Screws & Attachment Screw Machined Zinc Plated Steel Screws
- Option: T304- Stainless Steel Screws
- UL Listed, AL Lay-In Grounding Lug
Product Usage Instructions
- For Use On Threaded Rigid/imc Conduit to Provide a Means of Grounding Threaded Conduit Through an Insulated Bushing.
- EZ Wiring 3 Thr’d Machined Holes to Accommodate Lug Orientation.
- Low Surface Friction – Wires Can Be Pulled Fast With Virtually No Abrasion On Cable Insulation.
- Steel Set Screws in Machined Threaded Holes.
- Vibration Resistant.
- Move Lug to Avoid Interference and Speed Wiring.
- Wire Tightening Engagement Screw.
- Set Screws for Bonding to Conduit.
- Attachment Screw for Mounting the Lug.
Product Overview
IMPORTANT INSTRCUTION
Ground Bushings Steel Thr’d w/Lug
- Size Range: 1/2” – 4”
- Product Series: GB Grounding Bushings Threaded
- Furnished with Factory Installed AL Lay In Grounding Lug*
- Material: Solid Alloy Steel Construction
- Zinc Plated with Chromate Finish**
- Made in the USA
Solid Steel Construction with Factory Installed Insulator Precison Fully
Machined Body with Cut Threads Flat Hex Surface for Full Torque Values 105ºC
Rated, UV Stabilized Insulator Throat Bushing
Twice the Strength and Durability of Die Cast & Malleable Iron
Low Surface Friction – Wires Can Be Pulled Fast With Virtually No
Abrasion On Cable Insulation
Industrial SPEC-grade
For Use On Threaded Rigid/imc Conduit to Provide a Means of Grounding Threaded Conduit Through an Insulated Bushing.
Lug Wire Range
| Cat # (1) | Trade Size | Ø A | B | C | D | Lug Wire Range | Wt. Per/C |
|---|---|---|---|---|---|---|---|
| Min Solid | Max Strand | ||||||
| GB50BGL | 1/2″ | 1-1/16″ | 5/8″ | 3/4″ | 1-5/16″ | #14 | #4 |
| GB75BGL | 3/4″ | 1-1/4″ | 5/8″ | 3/4″ | 1-3/8″ | #14 | #4 |
| GB75BGL-0 | 3/4″ | 1-1/4″ | 5/8″ | 1-1/8″ | 1-11/16″ | #8 | #1/0 |
| GB100BGL | 1″ | 1-1/2″ | 3/4″ | 3/4″ | 1-1/2″ | #14 | #4 |
| GB100BGL-0 | 1″ | 1-1/2″ | 3/4″ | 1-1/8″ | 1-7/8″ | #8 | #1/0 |
| GB125BGL | 1-1/4″ | 1-7/8″ | 3/4″ | 3/4″ | 1-11/16″ | #14 | #4 |
| GB125BGL-0 | 1-1/4″ | 1-7/8″ | 3/4″ | 1-1/8″ | 2-1/16″ | #8 | #1/0 |
| GB150BGL | 1-1/2″ | 2-1/16″ | 3/4″ | 3/4″ | 1-13/16″ | #14 | #4 |
| GB150BGL-0 | 1-1/2″ | 2-1/16″ | 3/4″ | 1-1/8″ | 2-1/8″ | #8 | #1/0 |
| GB200BGL | 2″ | 2-11/16″ | 3/4″ | 3/4″ | 2-1/6″ | #14 | #4 |
| GB200BGL-0 | 2″ | 2-11/16″ | 3/4″ | 1-1/8″ | 2-3/8″ | #8 | #1/0 |
| GB250BGL | 2-1/2″ | 3-7/16″ | 1-1/16″ | 1-3/16″ | 2-13/16″ | #14 | #1/0 |
| GB250BGL-250 | 2-1/2″ | 3-7/16″ | 1-1/16″ | 1-11/16″ | 3-3/8″ | #6 | 250 MCM |
| GB300BGL | 3″ | 4″ | 1-1/16″ | 1-3/16″ | 3-1/8″ | #14 | #1/0 |
| GB300BGL-250 | 3″ | 4″ | 1-1/16″ | 1-11/16″ | 3-11/16″ | #6 | 250 MCM |
| GB350BGL | 3-1/2″ | 4-1/2″ | 1-1/16″ | 1-3/16″ | 3-3/8″ | #14 | #1/0 |
| GB350BGL-250 | 3-1/2″ | 4-1/2″ | 1-1/16″ | 1-11/16″ | 3-15/16″ | #6 | 250 MCM |
| GB400BGL | 4″ | 5-1/8″ | 1-1/16″ | 1-3/16″ | 3-15/16″ | #14 | #1/0 |
| GB400BGL-250 | 4″ | 5-1/8″ | 1-1/16″ | 1-11/16″ | 4-3/16″ | #6 | 250 MCM |
Compliances:
- Certified Made in the USA
- UL 514B, 467, NEMA FB1
- Insulated Throat Bushing is UV Stablized & 150ºC Rated
- In Normal Use, Will not Chip, Crack, Swell or Shrink
- Excellent Wear & Friction Properties
- 1/2” to 2” PA (Polyamide) UL Listed
- 2 1/2” to 4” PEI (Polyetherimide) UL Listed
- Federal Standard A-A-50553
- CSA Standard: C22.2 No. 18F
- RoHS Compliant
- REACH Compliant
- CA Prop 65 Compliant
- UNSPSC 39121312
Available Options
Aluminum Construction for Aluminum Conduit – See Catalog Page GBAL
Grounding Lug Options:
- Copper Lug Add Sux CU to Cat #
- Consult Factory for Tin Plated Aluminum Lugs
- Other Wire Lug Sizes Consult Factory
Set Screws & Attachmemt Screw Option:
Stainless Steel Set Screws Consult Factory
Galvanized Plating Option:
For this Option, Add Suffx “G” to Above Cat Number
AMFTGS.com t:
800-221-5268 e:
info@amftgs.com
© Copyright 2022 AMERICAN FITTINGS Corporation Fair Lawn, NJ Specifications
Subject to Change Without Notice