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XJG Expansion Couplings
XJG64-TB - spec sheet
Features
- True Internal Bonding Jumper-no external grounding strap required, tamper-proof internal jumper protected from the environment.
- Exceeds code requirements for long conduit runs to permit linear movement.
XJG64-TB - spec sheet
Manufacturer Resources
Spec Sheet
Product Specs
- Etim:
- EC000939 Coupler for installation tubes
- Material Quality:
- Other
- Outer Dimensions Inches:
- 30.62x6x6.5
- Outer Quantity:
- 1
- Outside Diameter:
- 3.86 Inch
- Product Group:
- Conduit & Raceway
- Standards:
- UL E23018, CSA
- Surface Protection:
- Other
- Two Piece:
- N
- Unspsc:
- 39131707 Electrical conduit coupling
- Weight Uom:
- 10.04 lbs. Each
- With Inspection Opening And Cover:
- N
- Department:
- Electrical
- Product Subgroup:
- Conduit Fittings
- Product Type:
- Expansion Coupling
- Product Model:
- Thread
- Product Length:
- 11.25 in
- Product Details:
- XJG Expansion Couplings
- Product Material:
- Metal
- Product Size:
- 2 Inch
Thomas & Betts XJG64-TB – Frequently Asked Questions
1) What conduit size does the Thomas & Betts XJG64-TB expansion coupling fit?
The XJG64-TB is a 2 inch expansion coupling with threaded ends, so it takes 2 inch threaded rigid conduit on each side. Its outside diameter is 3.86 inches, which matters when you are fitting it into a tight rack or between close-spaced runs.
2) Do I need a separate external bonding jumper with the XJG64-TB expansion coupling?
No. The XJG64-TB has a true internal bonding jumper, so no external grounding strap is needed. The jumper sits inside the fitting where it is protected from weather and tampering, which is the usual failure point with strap-style expansion fittings on exterior or exposed runs.
3) When should I use an expansion coupling instead of a standard threaded conduit coupling?
Use a standard coupling to simply join two lengths of conduit. An expansion coupling like the XJG64-TB is for runs that move: building expansion joints, long exterior runs that grow and shrink with temperature, and anywhere the structure shifts. It allows linear movement along the axis of the conduit and exceeds code requirements for long runs. If your run crosses a structural expansion joint or spans a long outdoor stretch, a rigid coupling will eventually stress the threads or crack a fitting.
4) Is the Thomas & Betts XJG64-TB UL listed?
It carries UL file E23018 and is CSA certified, which is what an inspector or a spec writer on an institutional job will want to see on an expansion fitting carrying the equipment grounding path.
5) How much room does a 2 inch XJG expansion coupling take up in a conduit run?
Plan on 11.25 inches of length for the XJG64-TB body in the run. It weighs 10.04 lbs each, so on long horizontal runs you want a strap or hanger close to the fitting rather than letting it hang on the conduit alone.
6) Does the XJG64-TB allow for angular or offset movement between conduit sections?
No. The XJG series is built for linear movement, meaning travel along the length of the conduit run. If your joint also moves side to side or the two sides shear against each other, a straight expansion coupling is the wrong fitting and you need an expansion/deflection type instead.
7) Is the XJG64-TB a metal fitting or plastic?
It is a metal expansion coupling, which is what keeps the grounding path continuous through the fitting along with the internal jumper. It is a one-piece fitting, not a two-piece assembly, and it has no inspection opening or cover.
8) How many XJG64-TB couplings come in a box?
They are sold one per box. The carton measures 30.62 x 6 x 6.5 inches, worth knowing if you are staging material in a tight electrical room or shipping to a jobsite locker.
How fast can I get the Thomas & Betts XJG64-TB delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Thomas & Betts XJG64-TB come with a warranty?
Absolutely. The Thomas & Betts XJG64-TB is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Thomas & Betts XJG64-TB?
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