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FLEXIBLE BRAID 230.4KCMIL, 12INLONG
Manufacturer Resources
Product Specs
- Cable Length:
- 12 in
- Conductor Category:
- Flexible
- Conductor Shape:
- Flat
- Country Of Origin:
- United States (US)
- Material Of Conductor:
- Tin-Plated Copper
- Product Group:
- Wire & Cable Management
- Product Type:
- Flexible Braid Connector - 2-Hole
- Selling Unit Of Measure:
- each
- Standards:
- UL E3060, CSA LR29625
- Type2:
- Flexible braid
- Department:
- Electrical
- Product Subgroup:
- Connectors
Blackburn FB3D12 – Frequently Asked Questions
1) What is the Blackburn FB3D12 flexible braid used for?
The FB3D12 is a flat, flexible tin-plated copper braid connector used to bond or jumper between two bolted terminations, where a rigid conductor would not tolerate movement, vibration, or thermal expansion. It's a 2-hole flexible braid rated 230.4 kcmil with a 12 inch length, so it bolts at both ends rather than being crimped to cable.
2) Is the Blackburn FB3D12 braid UL listed for electrical bonding work?
Yes. The FB3D12 carries UL file E3060 and CSA LR29625, so it satisfies inspectors looking for a listed connector on grounding and bonding jumpers. Those are the file numbers to reference on a submittal.
3) Can I use the FB3D12 as a substitute for a 4/0 copper bonding jumper?
The FB3D12 is rated 230.4 kcmil, which is above 4/0 (211.6 kcmil), so on ampacity it covers a 4/0 jumper. The difference is the termination: it's a 2-hole bolted braid, not a cable you crimp a lug onto, so the equipment on both ends needs drilled pads or bus with matching hole spacing.
4) How long is the Blackburn FB3D12 braid, and is that the overall length?
It's a 12 inch braid. That's the length to check against your span between the two bolt points, since the braid is designed to flex rather than stretch, you want some slack left after both ends are landed.
5) Will a flat braid work better than a round cable across an expansion joint on bus bar?
For an expansion or vibration break on bus, a flat flexible braid like the FB3D12 is the usual choice: the flat, multi-strand construction flexes repeatedly in the plane of the bus without work-hardening the way a stiff rigid link does, and it lands flat against the bus face on a 2-hole bolted pattern. Round cable with crimped lugs is fine where the connection is static, but it takes more bend radius and puts more side load on the pads when it moves.
6) What's the manufacturer part number and is the FB3D12 made in the USA?
Order it as Blackburn FB3D12. Country of origin is the United States, which matters if you're on a federal or Buy American funded job and need domestic sourcing documentation.
7) Why is the FB3D12 braid tin-plated instead of bare copper?
Tin plating on the copper braid slows oxidation at the bolted faces, which keeps contact resistance down over time and makes the braid suitable for aluminum bus or aluminum lug connections where bare copper would be a dissimilar-metal concern. It also holds up better in damp or industrial air.
8) Is the Blackburn FB3D12 sold individually or in a pack?
Each. One FB3D12 braid per unit, so order one per jumper you need, plus your own bolts, nuts, and Belleville washers, which aren't part of the braid.
How fast can I get the Blackburn FB3D12 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 FB3D12 come with a warranty?
Absolutely. The Blackburn FB3D12 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 Blackburn FB3D12?
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