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COPPER LUG FOR 500 WITH 4 HOLES
Manufacturer Resources
Product Specs
- Country Of Origin:
- United States (US)
- Insulation Material:
- None
- Material Of Conductor:
- Copper
- Product Group:
- Wire Termination
- Product Net Depth Length:
- 6-38 in
- Product Type:
- Heavy-Duty Lug
- Selling Unit Of Measure:
- each
- Type2:
- Grounding devices or assemblies
- Department:
- Electrical
- Product Subgroup:
- Lugs
Blackburn HDL 500-4 NTN – Frequently Asked Questions
1) What conductor size does the Blackburn HDL 500-4 NTN lug take?
The HDL 500-4 NTN is built for 500 kcmil conductor. It is a one-conductor heavy-duty copper lug, so if your feeder is a different size you need a different HDL number rather than this one.
2) Why does this copper lug have four bolt holes instead of two?
Four mounting holes spread the connection across a wider bolt pattern on the pad or bus, which is what high-current terminations and ground bars are usually drilled for. If your bus or breaker pad is drilled for a two-hole NEMA pattern, a four-hole lug will not land on it, so match the lug to the hole pattern already in the pad.
3) Is the Blackburn HDL 500-4 NTN made of copper or aluminum?
Copper conductor body, so it is intended for copper cable terminations. It ships bare with no insulating cover or boot, meaning you provide your own insulation or tape if the termination needs to be covered.
4) Can the HDL 500-4 NTN be used for a grounding or bonding connection?
Yes. The HDL 500-4 is classified as a grounding device, so it is used for bonding a 500 kcmil copper conductor to a ground bar, structural steel, or equipment pad as well as for power terminations.
5) Does the Blackburn HDL 500-4 NTN come in a pack, or is it sold one at a time?
Sold as each, one lug per order. Count your terminations, phases plus neutral and ground, and order that quantity, since no mounting bolts or hardware are described as coming with it.
6) Where is the Blackburn HDL 500-4 NTN lug manufactured?
Made in the United States, which matters on federal, military, and other Buy American funded projects where domestic origin has to be documented for electrical components.
How fast can I get the Blackburn HDL 500-4 NTN 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 Blackburn HDL 500-4 NTN come with a warranty?
Absolutely. The Blackburn HDL 500-4 NTN 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 Blackburn HDL 500-4 NTN?
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 Blackburn HDL 500-4 NTN 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.