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Manufacturer Resources
Product Specs
- Application:
- Used as a rack mounted equipment grounding bus
- Certifications:
- UL Listed
- Product Category:
- Grounding accessories
- Product Height:
- .75 in
- Product Length Depth:
- 18.3125 in
- Product Weight:
- 1 lb
- Product Width:
- .1875 in
- Special Features:
- Ground bar,Splice plate,yellow zinc plated screws
- Department:
- Electrical
- Product Model:
- Universal ground bar
- Product Material:
- Copper bar
- Product Length:
- 18.312 in
B-LINE SB57903 – Frequently Asked Questions
1) Is this B-Line ground bar UL Listed for an inspected installation?
Yes, the SB57903 universal ground bar is UL Listed, which is normally what an electrical inspector or a spec writer on a data or telecom room drawing is looking for on a rack grounding bus.
2) Does the SB57903 ground bar come with the hardware to mount it, or do I need to order more?
The kit includes the ground bar itself, a splice plate and yellow zinc plated screws. The splice plate lets you tie two bars end to end when one 18.3125 inch bar does not carry all your rack conductors. You still supply the grounding conductors, lugs and any rack-rail mounting hardware your enclosure needs.
3) Is the B-Line SB57903 ground bar solid copper or plated steel?
It is a copper bar with yellow zinc plated screws. Copper is what you want for a telecom or data center grounding bus, since it keeps bonding resistance low across every conductor landed on it.
4) Can I join two of these B-Line ground bars together to extend a grounding bus?
Yes. A splice plate ships with the SB57903, so two bars can be coupled to extend the run when a single 18.3125 inch bar runs out of landing points. That is the usual approach in a tall rack or a row of cabinets where every shelf needs a bond.
5) What is the difference between a rack ground bar like this and a panelboard neutral or ground bar kit?
A panelboard ground bar kit bolts into a load center to terminate branch circuit equipment grounds. The B-Line SB57903 is a separate copper bus intended to mount on an equipment rack so IT gear, shelves and cabinet panels can each be bonded back to one point, then a single conductor runs from the bar to the building grounding system. If your job is terminating grounds inside a panel enclosure, this is not the part you want.
6) How much does the B-Line SB57903 ground bar weigh for shipping and handling on site?
One pound. A single tech can mount it without help, and it does not need rack support beyond its own fasteners.
How fast can I get the B-LINE SB57903 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 B-LINE SB57903 come with a warranty?
Absolutely. The B-LINE SB57903 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 B-LINE SB57903?
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
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