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Manufacturer Resources
Product Specs
- Certifications:
- Not Applicable
- Product Height:
- 24 in
- Product Length Depth:
- 24.3125 in
- Product Weight:
- 17.8 lb
- Product Width:
- 23 in
- Department:
- Electrical
- Product Model:
- Two-post network rack extension kit
- Product Finish:
- Flat black powder coat
- Product Material:
- Steel
B-LINE SB57424SFB – Frequently Asked Questions
1) Is the B-Line SB57424SFB a complete two-post rack or an extension kit?
SB57424SFB is an extension kit, not a standalone rack. Eaton B-Line describes it as a two-post network rack extension kit made up of uprights, splice bars and 3/8-16 hardware. It splices onto an existing open frame two-post rack to add height, so you need the base rack already standing before this does anything for you.
2) How much extra rack height does the B-Line extension kit add?
The kit measures 24 inches high, so it extends an existing open frame two-post rack by two feet of upright. Width is 23 inches and depth is 24.3125 inches, matching the footprint of the rack it bolts onto.
3) What hardware comes with the B-Line rack extension kit, and do I need to buy fasteners separately?
Uprights, splice bars and 3/8-16 hardware ship in the kit, so the splice fasteners are covered. What is not included is your equipment mounting hardware (rack screws, cage nuts, cable management) or floor anchors for the base rack.
4) Will the flat black extension match my existing black B-Line open frame rack?
Finish is flat black powder coat over steel, the same finish used on the Eaton B-Line series open frame racks it splices to. If your existing rack is the flat black version, the extension blends; if you have a grey or clear-anodized rack, expect a visible difference at the splice.
5) Is this the right part number if I need a whole new two-post rack instead of more height?
No. SB57424SFB is the extension kit only. For a new installation you want a complete Eaton B-Line series open frame two-post rack, which ships with the base and full-height uprights; order this kit later if you run out of rack units and want to build up rather than add a second rack.
6) Can one person handle installing this rack extension overhead?
At 17.8 lb the kit is light enough for one tech to lift, but splicing uprights at the top of an already-tall two-post rack is a two-person job in practice: one holds the upright in line while the other sets the splice bars and 3/8-16 hardware. Plan on a ladder and the rack being floor or base-plate secured first, since adding 24 inches of height raises the center of gravity.
7) Does the B-Line SB57424SFB rack extension kit carry a UL listing or other certification?
No certification applies to this extension kit. It is a mechanical steel structure, uprights and splice bars, with no electrical components to list. If your project spec calls for a listed grounding or bonding assembly, that gets specified separately from the rack frame itself.
How fast can I get the B-LINE SB57424SFB 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 SB57424SFB come with a warranty?
Absolutely. The B-LINE SB57424SFB 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 SB57424SFB?
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