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Manufacturer Resources
Product Specs
- Country Of Origin:
- United States (US)
- Product Group:
- Wire & Cable Management
- Product Type:
- Grounding Bus
- Selling Unit Of Measure:
- each
- Standards:
- UL E9809
- Type2:
- Connector mounting hardware
- Department:
- Electrical
- Product Subgroup:
- Connectors
- Product Material:
- Copper
Blackburn WGB4B – Frequently Asked Questions
1) How many grounding conductors can the Blackburn WGB4B bus bar terminate?
Four. The WGB4B is a 4-position copper grounding bus, so it gives you four separate lugged terminations, one conductor per hole. If you need more grounds than that in the enclosure, step up to a longer bus with more positions rather than doubling conductors into one hole.
2) What wire sizes fit the WGB4B grounding bus?
The WGB4B accepts #14 through #4 AWG in each of its four positions, which covers typical branch-circuit equipment grounds up to a #4 grounding electrode conductor. Anything larger than #4 needs a bigger bus or a separate lug.
3) Is this grounding bus UL listed for electrical inspection?
Yes. The Blackburn WGB4B carries UL file E9809, which is the listing an inspector will look for on a grounding bus installed in a panel, load center, or junction enclosure.
4) Is the WGB4B bar solid copper or aluminum?
Solid copper. That matters when you are landing copper equipment grounds, since a copper bar avoids the dissimilar-metal concern you get with aluminum bus and copper conductors.
5) Does the WGB4B grounding bus come with mounting hardware?
The WGB4B is supplied as connector mounting hardware, meaning the bar ships with its mounting provisions for fastening into an enclosure or onto a panel wall. It is sold individually, one bar per unit, so order one per enclosure you are grounding.
6) I need a US-made grounding bus for a government or institutional job. Does this qualify on country of origin?
The Blackburn WGB4B is manufactured in the United States, so it satisfies a domestic-origin line item on a spec sheet. Pair that with its UL E9809 listing and it covers the two things procurement usually asks for on a grounding bus.
7) Can I use a grounding bus like the WGB4B as a neutral bar?
No. The WGB4B is a grounding bus, intended for bonding equipment grounding conductors to the enclosure. Neutrals must land on an isolated neutral bar where the code requires grounds and neutrals kept separate, such as any subpanel. Use this bar for grounds only.
How fast can I get the Blackburn WGB4B 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 WGB4B come with a warranty?
Absolutely. The Blackburn WGB4B 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 WGB4B?
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product
selection,
installation tips, and troubleshooting. Contact Us
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