Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
BURNDY Grounding Connector: Copper, 2 1/2 in to 3 1/2 in Pipe, 1 Grounding Wires - Pipe and Rod U-Bolt Ground Clamps
BURNDYPipe and Rod U-Bolt Ground Clamps

BURNDY Grounding Connector: Copper, 2 1/2 in to 3 1/2 in Pipe, 1 Grounding Wires

The BURNDY GAR3904 is a copper pipe and rod U-bolt ground clamp for 2-1/2 in to 3-1/2 in pipe, accommodating 4 AWG to 4/0 AWG stranded copper grounding wire. It features galvanized steel hardware and supports one…

SKU 3G-OTH-620830

Brand
BURNDY
Item
Grounding Connector: Copper, 2 1/2 in to 3 1/2 in Pipe, 1 Grounding Wires
Category
Pipe and Rod U-Bolt Ground Clamps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

BURNDY
Manufacturer Part Number
GAR3904
Type
4 AWG to 4/0 AWG
Pipe
2 1/2 in to 3 1/2 in
Grounding Wires
1
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

BURNDY Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BURNDY GAR3904 is a copper pipe and rod U-bolt ground clamp for 2-1/2 in to 3-1/2 in pipe, accommodating 4 AWG to 4/0 AWG stranded copper grounding wire. It features galvanized steel hardware and supports one grounding wire. 3G Electric sources this genuine industrial grounding connector across 14 departments, with specialist expertise in electrical components.

Frequently Asked Questions

What is the BURNDY GAR3904 grounding connector used for?

The BURNDY GAR3904 is a copper U-bolt ground clamp used to bond a 4 AWG to 4/0 AWG stranded copper grounding wire to a pipe ranging from 2-1/2 in to 3-1/2 in. It is commonly applied in electrical grounding systems for industrial, commercial, and utility installations.

What are the specifications of the BURNDY GAR3904?

The BURNDY GAR3904 accommodates pipe sizes from 2-1/2 in to 3-1/2 in and accepts one 4 AWG to 4/0 AWG stranded copper grounding wire. It is made of copper with galvanized steel hardware. The manufacturer part number is GAR3904.

Where to buy the BURNDY GAR3904 worldwide?

3G Electric supplies the genuine BURNDY GAR3904 grounding connector worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this copper U-bolt ground clamp.

How to install the BURNDY GAR3904 ground clamp?

To install the BURNDY GAR3904, clean the pipe surface and insert the stranded copper wire (4 AWG to 4/0 AWG) under the clamp. Tighten the galvanized steel hardware securely to ensure a low-resistance bond. Always follow applicable electrical codes and manufacturer guidelines for proper grounding.

Used in

Common applications for BURNDY
Power distribution panelboards — BURNDY KA31U mechanical panelboard lugs for 6 AWG to 350 kcmil copper conductors
Grounding electrode systems — BURNDY C5 bronze pipe ground clamps for bonding water pipes to grounding conductors
Transformer connections — BURNDY QA1CB straight mechanical lugs for 4 AWG to 1 AWG copper wire terminations
Industrial control cabinets — BURNDY KLU25 offset-tongue lugs for 14 AWG to 10 AWG wire connections on #6 studs
Multitap splicing in junction boxes — BURNDY BIBD60010 aluminum multitap connector for 4 AWG to 600 kcmil conductors
Crimping copper lugs in switchgear — BURNDY UO replacement dies with Y35 head for 6 to 2 AWG copper lugs

BURNDY Products

3G Electric supplies BURNDY pipe and rod u-bolt ground clamps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from BURNDY

View all BURNDY parts →
Grounding Connector: Copper, 6 in Pipe, 4 to 4/0 AWG SOL/4 to 4/0 AWG STR Grounding Wire Size (MPN GAR3906). Key specifications — attr26992: BURNDY; attr26998: Galvanized Steel Hardware; attr27004: Pipe; attr27005: 4 to 4/0 AWG SOL; attr27009: Copper; attr27006: 6 in Pipe; attr26989: GAR3906; attr41908: Copper.
BURNDY
Grounding Connector: Copper, 6 in Pipe, 4 to 4/0 AWG SOL/4 to 4/0 AWG STR Grounding Wire Size (MPN GAR3906). Key specifications — attr26992: BURNDY; attr26998: Galvanized Steel Hardware; attr27004: Pipe; attr27005: 4 to 4/0 AWG SOL; attr27009: Copper; attr27006: 6 in Pipe; attr26989: GAR3906; attr41908: Copper.
Grounding Connector: Copper, 1/2 in to 3/4 in Pipe/7/8 in to 1 in Rod/#7 to #8 Rebar (MPN GAR1426). Key specifications — attr26992: BURNDY; attr26998: Rebar #7-#8; attr27004: Copper Conductors; attr27005: 5 to 2/0 AWG STR; attr27009: Copper; attr27006: 7/8 in to 1 in Rod; attr26989: GAR1426; attr41908: Copper.
BURNDY
Grounding Connector: Copper, 1/2 in to 3/4 in Pipe/7/8 in to 1 in Rod/#7 to #8 Rebar (MPN GAR1426). Key specifications — attr26992: BURNDY; attr26998: Rebar #7-#8; attr27004: Copper Conductors; attr27005: 5 to 2/0 AWG STR; attr27009: Copper; attr27006: 7/8 in to 1 in Rod; attr26989: GAR1426; attr41908: Copper.
Grounding Connector: Copper, 4 to 2/0 AWG SOL/4 to 2/0 AWG STR Grounding Wire Size (MPN GAR1526). Key specifications — attr26992: BURNDY; attr26998: Rebar #9-#10; attr27004: Ground Rods; attr27005: 4 to 2/0 AWG STR; attr27009: Copper; attr27006: #9 to #10 Rebar; attr26989: GAR1526; attr41908: Copper.
BURNDY
Grounding Connector: Copper, 4 to 2/0 AWG SOL/4 to 2/0 AWG STR Grounding Wire Size (MPN GAR1526). Key specifications — attr26992: BURNDY; attr26998: Rebar #9-#10; attr27004: Ground Rods; attr27005: 4 to 2/0 AWG STR; attr27009: Copper; attr27006: #9 to #10 Rebar; attr26989: GAR1526; attr41908: Copper.
Grounding Connector: Copper, 1 1/2 in Pipe/1 5/8 in to 1 7/8 in Rod, 1 Grounding Wires (MPN GAR1726). Key specifications — attr26992: BURNDY; attr26998: Direct Burial; attr27004: Ground Rods; attr27005: 4 to 3/0 AWG SOL; attr27009: Copper; attr27006: 1-5/8 in to 1-7/8 in Rod; attr26989: GAR1726; attr41908: Copper.
BURNDY
Grounding Connector: Copper, 1 1/2 in Pipe/1 5/8 in to 1 7/8 in Rod, 1 Grounding Wires (MPN GAR1726). Key specifications — attr26992: BURNDY; attr26998: Direct Burial; attr27004: Ground Rods; attr27005: 4 to 3/0 AWG SOL; attr27009: Copper; attr27006: 1-5/8 in to 1-7/8 in Rod; attr26989: GAR1726; attr41908: Copper.
Grounding Connector: Copper, 1 1/2 in Pipe/1 5/8 in to 1 7/8 in Rod, 1 Grounding Wires (MPN GAR1729). Key specifications — attr26992: BURNDY; attr26998: Direct Burial; attr27004: Rebar; attr27005: 2/0 to 4/0 AWG SOL; attr27009: Copper; attr27006: 1-5/8 in to 1-7/8 in Rod; attr26989: GAR1729; attr41908: Copper.
BURNDY
Grounding Connector: Copper, 1 1/2 in Pipe/1 5/8 in to 1 7/8 in Rod, 1 Grounding Wires (MPN GAR1729). Key specifications — attr26992: BURNDY; attr26998: Direct Burial; attr27004: Rebar; attr27005: 2/0 to 4/0 AWG SOL; attr27009: Copper; attr27006: 1-5/8 in to 1-7/8 in Rod; attr26989: GAR1729; attr41908: Copper.
Grounding Connector: Copper, 4 to 3/0 AWG SOL/5 to 2/0 AWG STR Grounding Wire Size (MPN GAR1826). Key specifications — attr26992: BURNDY; attr26998: Direct Burial; attr27004: Ground Rods; attr27005: 4 to 3/0 AWG SOL; attr27009: Copper; attr27006: 2 in Pipe; attr26989: GAR1826; attr41908: Copper.
BURNDY
Grounding Connector: Copper, 4 to 3/0 AWG SOL/5 to 2/0 AWG STR Grounding Wire Size (MPN GAR1826). Key specifications — attr26992: BURNDY; attr26998: Direct Burial; attr27004: Ground Rods; attr27005: 4 to 3/0 AWG SOL; attr27009: Copper; attr27006: 2 in Pipe; attr26989: GAR1826; attr41908: Copper.
Grounding Connector: Copper, 1/2 in to 1 in Pipe, 1 Grounding Wires, 4 AWG to 4/0 AWG (MPN GAR3902BU). Key specifications — attr26992: BURNDY; attr26998: Direct Burial; attr27004: Ground Rods; attr27005: 4 to 4/0 AWG SOL; attr27009: Copper; attr27006: 1/2 in to 1 in Pipe; attr26989: GAR3902BU; attr41908: Copper.
BURNDY
Grounding Connector: Copper, 1/2 in to 1 in Pipe, 1 Grounding Wires, 4 AWG to 4/0 AWG (MPN GAR3902BU). Key specifications — attr26992: BURNDY; attr26998: Direct Burial; attr27004: Ground Rods; attr27005: 4 to 4/0 AWG SOL; attr27009: Copper; attr27006: 1/2 in to 1 in Pipe; attr26989: GAR3902BU; attr41908: Copper.
Grounding Connector: Copper, Up to 1 in Braid Grounding Wire Size, 1 Grounding Wires (MPN GG171). Key specifications — attr26992: BURNDY; attr26998: Direct Burial; attr27004: Ground Rods; attr27005: Up to 1 in Braid; attr27009: Copper; attr27006: 1-1/2 in Pipe; attr26989: GG171; attr41908: Copper.
BURNDY
Grounding Connector: Copper, Up to 1 in Braid Grounding Wire Size, 1 Grounding Wires (MPN GG171). Key specifications — attr26992: BURNDY; attr26998: Direct Burial; attr27004: Ground Rods; attr27005: Up to 1 in Braid; attr27009: Copper; attr27006: 1-1/2 in Pipe; attr26989: GG171; attr41908: Copper.