B-Line Eaton series runway dro...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$244.60
$230.69
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B-Line Eaton series runway dropout kit, Side drop-out, 14 gauge, ASTM A36 steel, Flat black powder coat

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Model: SB2129SD12YZ

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

$244.60
$230.69
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Eaton B-Line series runway dropout kit, Side drop-out, 14 gauge, ASTM A36 steel, Flat black powder coat

Manufacturer Resources

Product Specs

Certifications:
UL Listed
Material Details:
Flat black powder coat ASTM A36 steel
Product Height:
4 in
Product Length Depth:
4 in
Product Weight:
1.8 lb
Product Width:
10.25 in
Department:
Electrical
Product Type:
Side drop-out
Product Details:
Side drop-out

B-LINE SB2129SD12YZ – Frequently Asked Questions

1) What does the B-Line SB2129SD12YZ side drop-out kit actually do on a cable runway?
It is a side drop-out, a radius transition piece that mounts to the side stringer of a cable runway so cable can leave the runway and turn down toward a rack or cabinet without bending over a sharp steel edge. The kit is B-Line model SB2129SD12YZ, built from ASTM A36 steel with a flat black powder coat finish.
2) Is SB2129SD12YZ a side drop-out or an end drop-out?
Side. It transitions cable off the side stringer of the runway, not off the open end of a run. If your cable needs to leave the end of a runway section instead, a side drop-out is the wrong part for that location.
3) What size is the B-Line SB2129SD12YZ drop-out kit and how much does it weigh?
It measures 10.25 x 4 x 4 inches (width x height x length/depth) and weighs 1.8 lb. That 10.25 inch width is the dimension to check against the runway side you are attaching it to, and the 1.8 lb weight means one tech can set it in place overhead without a second pair of hands.
4) Is 14 gauge steel heavy enough for a cable drop-out carrying a full bundle?
The drop-out is formed from 14 gauge ASTM A36 structural steel, the same grade used for runway stringers, so it is a load-bearing formed part rather than a trim cover. A36 is a standard hot-rolled structural carbon steel.
5) Do I need one drop-out per rack or one per runway run?
One side drop-out handles one cable exit point. Each rack or cabinet where cable leaves the runway and turns down needs its own SB2129SD12YZ, so count your drops, not your runway sections, when you order.
6) Is the black finish on this B-Line runway drop-out paint or powder coat?
Flat black powder coat over ASTM A36 steel. It matches black-finished B-Line runway so the transition does not stand out in a finished equipment room, and powder coat holds up better to cable drag and hand contact than wet paint.
How fast can I get the B-LINE SB2129SD12YZ 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 SB2129SD12YZ come with a warranty?
Absolutely. The B-LINE SB2129SD12YZ 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 SB2129SD12YZ?
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 SB2129SD12YZ 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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