B-Line SB2129U18YZ Eaton serie...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$177.91
$173.60
B-Line SB2129U18YZ Eaton series runway dropout kit, Used to provide a radius for cable exit cable, Self-drilling screws, 18" steel runway drop-out, 18 gauge, ASTM A569 steel, Yellow zinc

B-Line SB2129U18YZ Eaton series runway dropout kit, Used to provide a radius for cable exit cable, Self-drilling screws, 18" steel runway drop-out, 18 gauge, ASTM A569 steel, Yellow zinc

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Model: SB2129U18YZ
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$177.91
$173.60
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Eaton B-Line series runway dropout kit, Used to provide a radius for cable exit cable, Self-drilling screws, 18" steel runway drop-out, 18 gauge, ASTM A569 steel, Yellow zinc

Manufacturer Resources

Product Specs

Application:
Used to provide a radius for cable exit cable
Certifications:
UL Listed
Material Details:
Yellow zinc ASTM A569 steel
Product Height:
4 in
Product Length Depth:
4 in
Product Weight:
2.7 lb
Product Width:
16 in
Special Features:
Self-drilling screws
Department:
Electrical
Product Group:
Conduit & Fittings
Product Subgroup:
Tees / Crosses
Product Type:
Steel runway drop-out
Product Details:
Steel runway drop-out

B-LINE SB2129U18YZ – Frequently Asked Questions

1) What does the B-Line SB2129U18YZ runway dropout actually do in a cable runway?
It gives cable a controlled radius where it leaves the runway and drops down to a rack or cabinet. Instead of copper or fiber bending over a bare runway stringer edge, the dropout provides a curved steel path so the cable turns without a sharp bend. It is a steel runway drop-out, not a splice or junction piece.
2) Does the B-Line SB2129U18YZ dropout kit come with mounting hardware?
Yes, self-drilling screws are included, so you attach it directly to the runway stringer without drilling or tapping first. No separate fastener pack is needed for the dropout itself.
3) What is the exact part number to order for the B-Line 18 inch yellow zinc runway dropout?
Order Eaton B-Line SB2129U18YZ. The U18 designates the 18 inch runway width and the YZ suffix is the yellow zinc finish, so both the size and the finish are baked into that one number.
4) Is the yellow zinc finish on this B-Line dropout suitable for a data center or telecom room?
Yellow zinc plated ASTM A569 steel is a plated-for-indoor-environment finish, which is what most telecom and data rooms run. It matches the yellow zinc runway and hardware in the same B-Line runway line so the installation looks consistent. For wet, corrosive, or outdoor exposure you would want a different finish family.
5) How heavy is the 18 inch B-Line dropout, and can one person install it?
It weighs 2.7 lb, light enough for a single tech to hold in place on the runway while driving the included self-drilling screws. No lift or second set of hands required.
6) Is 18 gauge steel strong enough for a cable dropout carrying a heavy copper bundle?
The dropout is formed from 18 gauge ASTM A569 steel, the same commercial-quality sheet steel used across the B-Line runway accessory line. Its job is to hold the bend radius of the cable as it exits, not to carry runway span load, so the bundle weight stays supported by the runway and the drop itself.
How fast can I get the B-LINE SB2129U18YZ 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 SB2129U18YZ come with a warranty?
Absolutely. The B-LINE SB2129U18YZ 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 SB2129U18YZ?
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 B-LINE SB2129U18YZ 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.
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