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Manufacturer Resources
Product Specs
- Application:
- Connection of electric wire to grounding bus
- Certifications:
- UL Listed
- Product Category:
- Grounding accessories
- Product Height:
- .9 in
- Product Length Depth:
- 2.44 in
- Product Weight:
- .14 lb
- Product Width:
- .625 in
- Special Features:
- Silicon bronze hardware,additional size available
- Department:
- Electrical
- Product Model:
- Two-hole mechanical lug
- Product Material:
- Copper alloy
B-LINE SB47803 – Frequently Asked Questions
1) What is the B-Line SB47803 grounding lug used for?
The B-Line SB47803 is a two-hole mechanical lug for terminating an electric wire onto a grounding bus. The two-hole pattern keeps the lug from rotating under torque, which is why it's specified on ground bars and busbar connections rather than a single-bolt pad.
2) Will a copper grounding lug corrode where it bolts to the bus?
The lug body is copper alloy and the mounting hardware is silicon bronze, so the bolted joint is copper-to-copper with bronze fasteners rather than dissimilar metals that would drive galvanic corrosion against a copper ground bar.
3) Does the SB47803 come with its own mounting bolts, or do I order hardware separately?
Silicon bronze hardware is part of the SB47803 lug, so you're not sourcing fasteners separately. You will still need a suitably sized bolt pattern on the ground bar or bonding plate to receive it.
4) My grounding conductor is too large for this lug. Is there another size?
B-Line offers an additional size in this mechanical lug family, so if the conductor range on the SB47803 doesn't cover your ground wire, look to the alternate size in the same series rather than switching to a different termination method.
5) Should I use a two-hole lug or a single-hole lug on a ground bus?
A two-hole mechanical lug like the SB47803 is the one to use where the connection has to resist rotation, either from cable pull or from torquing the conductor screw. A single-hole lug can pivot on its one bolt and is generally reserved for light bonding jumpers where that movement doesn't matter. On a main ground bar carrying a heavier conductor, two holes is the safer choice.
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Does the B-LINE SB47803 come with a warranty?
Absolutely. The B-LINE SB47803 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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