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1 1/4 INCH EXP/DEFL COUPLING
Manufacturer Resources
Product Specs
- Number Of Batteries:
- 0
- Product Group:
- Conduit & Fittings
- Product Type:
- XD Expansion/Deflection Couplings
- Department:
- Electrical
- Product Subgroup:
- Couplings
- Product Material:
- Ductile Cast Iron
Thomas & Betts XD4-TB – Frequently Asked Questions
1) What conduit size does the Thomas & Betts XD4-TB expansion/deflection coupling fit?
The XD4-TB is the 1-1/4 inch size in the Thomas & Betts XD expansion/deflection coupling line. Order it for 1-1/4 inch conduit runs only; other trade sizes are separate catalog numbers in the XD series.
2) What is the difference between an expansion coupling and an expansion/deflection coupling like the XD4-TB?
A plain expansion coupling only takes up movement along the length of the conduit run, which is what you want at a straight thermal expansion joint. The XD4-TB is an expansion/deflection type, so it handles axial movement plus angular deflection and side-to-side offset. That is the one to use at building separation joints, seismic joints, and bridge or parking deck joints where the two sides can shift in more than one direction.
3) What is the Thomas & Betts XD4-TB coupling body made of?
Ductile cast iron. That is the deciding spec for anyone specifying it on a deck or exterior structural joint, where a fitting has to take impact and load rather than just seal a joint.
4) Can I use the XD4-TB in place of a straight conduit coupling?
No. A standard coupling is a rigid mechanical joint between two lengths of conduit and holds the run fixed. The XD4-TB is built to move, so it belongs only where the structure moves, at an expansion or deflection joint. Using one as a general-purpose coupling in the middle of a straight run adds a flexible point where you want rigidity.
5) What part number do I give my distributor for the 1-1/4 inch Thomas and Betts XD deflection coupling?
Thomas & Betts catalog number XD4-TB. The XD4 designation is the 1-1/4 inch size in the XD expansion/deflection family.
6) Is the XD4-TB coupling for rigid metal conduit runs?
Yes. The XD series is a conduit fitting, and the XD4-TB is the 1-1/4 inch member of it, for use in metal conduit systems where the run crosses a moving joint. It is a mechanical fitting only, with no batteries or powered components involved.
How fast can I get the Thomas & Betts XD4-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 XD4-TB come with a warranty?
Absolutely. The Thomas & Betts XD4-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 XD4-TB?
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selection,
installation tips, and troubleshooting. Contact Us
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