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Manufacturer Resources
Product Specs
- Product Group:
- Conduit & Raceway
- Product Type:
- Conduit Bushing
- Product Size:
- 1-1/4 Inch
- Number Of Batteries:
- 0
- Department:
- Electrical
- Product Type2:
- Insulated Bushing
- Product Subgroup:
- Conduit Fittings
Steel City BU504-1 – Frequently Asked Questions
1) Will the BU504 bushing work on IMC as well as rigid conduit?
Yes. The BU504 is listed for both RGD (rigid) and IMC, which share the same threads at a given trade size. At 1-1/4 inch it goes on either without an adapter.
2) Is an insulated bushing like the BU504 the same thing as a grounding bushing?
No. The BU504 is a plain insulated bushing for 1-1/4 inch RGD/IMC: it protects conductors at the conduit end and has no lug or provision for bonding a jumper. If the job calls for bonding the raceway to an enclosure, you need an insulated grounding bushing with a screw lug instead.
3) What does the insulated part of the Steel City BU504 bushing actually do?
It's an insulated throat bushing: it caps the cut, threaded conduit end so conductors pulled through the raceway don't drag across sharp metal. That insulating throat is what lets it serve as the conductor protection at a conduit termination instead of adding a separate plastic insert.
4) Do I need a locknut with the Steel City BU504 bushing?
Yes, plan on locknuts separately. The BU504 is sold as the bushing only, so a standard conduit termination into a box or panel still needs a locknut on the outside (and usually one inside) to clamp the conduit to the enclosure wall.
How fast can I get the Steel City BU504-1 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 Steel City BU504-1 come with a warranty?
Absolutely. The Steel City BU504-1 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 Steel City BU504-1?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Steel City BU504-1 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.