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FLEXIBLE BRAID 316.8KCMIL, 18 IN LG
Manufacturer Resources
Product Specs
- Cable Length:
- 18 in
- Conductor Category:
- Flexible
- Conductor Shape:
- Flat
- Country Of Origin:
- United States (US)
- Material Of Conductor:
- Tin-Plated Copper
- Product Group:
- Grounding & Bonding
- Product Type:
- Flexible Braid Connector
- Selling Unit Of Measure:
- each
- Standards:
- UL E3060, CSA LR29625
- Type2:
- Flexible braid
- Department:
- Electrical
- Product Subgroup:
- Grounding & Bonding
Blackburn FB3XD18-1 – Frequently Asked Questions
1) What is the Blackburn FB3XD18-1 flexible braid used for?
The FB3XD18-1 is a flat, flexible tin-plated copper braid connector rated 316.8 KCMIL, 18 inches long, with a single bolt hole at each end. It is used where a bonding or grounding connection has to tolerate movement or vibration, such as across expansion joints, on transformer and switchgear connections, or bonding equipment that shifts under load. The flat braid construction flexes where a solid conductor or rigid bus would fatigue.
2) How many bolt holes does the FB3XD18-1 flexible braid have, and how does it land?
One hole per terminal pad. It bolts at a single point on each end, so on a two-hole NEMA pad you will only engage one of the holes. If your spec calls for a two-hole landing for anti-rotation, a 1-hole braid is the wrong part for that pad.
3) Why tin-plated copper instead of bare copper on a bonding braid?
The FB3XD18-1 braid is tin-plated copper. The plating slows oxidation on the strands and at the bolted pad, which matters on outdoor, damp, or industrial installations and when landing on aluminum or plated hardware. Bare copper braid works fine indoors but discolors and builds oxide at the joint faster.
4) Does 316.8 KCMIL on the FB3XD18-1 mean it replaces a 300 KCMIL cable jumper?
316.8 KCMIL is the copper cross section of the braid itself, so it sits just above a 300 KCMIL conductor in copper area. Whether it substitutes for a cable jumper on your job depends on the bonding jumper size your drawing or the code table calls for and on the hole and pad arrangement at each end, since this braid is a 1-hole design.
5) What length is the Blackburn FB3XD18-1, and how should I allow for movement?
Overall length is 18 inches. Install it with slack rather than pulled taut, so the braid takes the movement instead of the bolted terminations. If your gap plus the loop you need exceeds 18 inches of run, step up to a longer braid.
6) Is the Blackburn FB3XD18-1 made in the USA for Buy American jobs?
Country of origin is the United States. Public and federally funded work that carries domestic sourcing language usually needs that stated on the submittal, and this braid is US origin.
7) Flexible braid or a stranded cable bonding jumper, which should I use?
Use the flat flexible braid where the two ends move relative to each other, vibration, thermal expansion, seismic joints, or equipment on isolators. The many fine strands in a flat braid flex repeatedly without work hardening the way a compression-lugged cable jumper will. Where the connection is static, a stranded cable jumper with lugs is simpler to install and route. The FB3XD18-1 is the flexible option at 18 inches and 316.8 KCMIL.
8) Is the FB3XD18-1 braid sold individually or in a pack?
It is sold each, one braid per unit, under manufacturer part number FB3XD18-1. Order one per connection point.
How fast can I get the Blackburn FB3XD18-1 delivered?
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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 Blackburn FB3XD18-1 come with a warranty?
Absolutely. The Blackburn FB3XD18-1 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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