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Manufacturer Resources
Product Specs
- Number Of Batteries:
- 0
- Product Type:
- Insulated Bushing
- Department:
- Electrical
- Product Group:
- Conduit & Fittings
- Product Subgroup:
- Bushings
- Product Type2:
- Insulated Bushing
- Product Size:
- 1-1/2 Inch
- Product Material:
- Plastic
Steel City BU505-1 – Frequently Asked Questions
1) What size conduit does the Steel City BU505-1 insulated bushing fit?
The BU505-1 is a 1-1/2 inch bushing, sized for 1-1/2 inch rigid metal conduit and IMC. It threads onto the conduit's male thread, so it is not a substitute for a 1-1/4 or 2 inch bushing; order the matching trade size for each run.
2) Can I use the BU505-1 bushing on EMT?
It is specified for rigid metal conduit and IMC, which are threaded raceways. EMT is not threaded, so a screw-on bushing of this type is not the right part for it; EMT terminations use a compression or set-screw connector, with an insulated throat version where conductor protection is required.
3) Will a plastic bushing work for RGD and IMC conduit, or do I need a metal one?
The BU505-1 is molded plastic and is made for rigid metal conduit and IMC. Its job is to protect conductor insulation at the cut end of the raceway, not to carry current or provide mechanical strength, so plastic is the normal material for that role. Where the installation calls for a bonding or grounding path at the fitting, a plastic insulating bushing alone does not provide it.
4) What is the difference between an insulated bushing like this and an insulated throat connector?
An insulated bushing such as the BU505-1 is a separate threaded plastic piece you add to the end of 1-1/2 inch rigid or IMC conduit to give the conductors a smooth insulated edge. A connector with an integral insulated throat builds that protection into the fitting itself, so no extra bushing is needed. Use the bushing when the conduit end or locknut assembly has no insulated throat of its own.
5) Is the Steel City BU505-1 sold individually or in a bag of multiples?
The BU505-1 is sold each, so quantity one gets you a single 1-1/2 inch bushing. For a panel or pull box with several 1-1/2 inch entries, count the conduit ends and order one per end.
How fast can I get the Steel City BU505-1 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 BU505-1 come with a warranty?
Absolutely. The Steel City BU505-1 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 BU505-1?
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 BU505-1 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.