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FLEXIBLE BRAID 691.2KCMIL, 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 FB3F12 – Frequently Asked Questions
1) What is the Blackburn FB3F12 flexible braid used for?
The FB3F12 is a flat, flexible tin-plated copper braid connector with two bolt holes, used to bond or jumper between two fixed points where some movement or vibration is expected. Typical uses are bonding jumpers across expansion joints, switchgear and transformer connections, and equipment grounding runs where a rigid bar or solid conductor would fatigue. It is 12 inches long and sold each.
2) What size conductor is the Blackburn FB3F12 braid equivalent to?
The FB3F12 braid is rated at 691.2 kcmil, so it is used where the bonding path calls for a conductor in that range. The 12 inch length is the overall braid length.
3) Is the Blackburn FB3F12 bonding braid UL listed?
Yes. The FB3F12 carries UL E3060 and CSA LR29625, which covers it for both US and Canadian installations.
4) How does the Blackburn FB3F12 braid attach, and do I need anything else to install it?
It is a 2-hole braid connector, so each end bolts through two holes to a pad, lug, or bus. Two-hole terminations are used because they stop the connector rotating and hold torque under vibration. Bolts, nuts, washers, and any antioxidant compound are not part of the braid itself, so plan on supplying the hardware that matches the drilling on your bus or ground pad.
5) Why choose a tin-plated braid instead of bare copper for a bonding jumper?
The FB3F12 conductor is tin-plated copper. The plating resists surface oxidation, which matters on a flat braid because the many fine strands give a large surface area, and it keeps the bolted contact faces from corroding over time in damp or outdoor enclosures. Bare copper braid is fine indoors and dry, but tin plating is the usual call for exterior gear, substations, and anywhere galvanic corrosion at the bolt face is a concern.
6) Should I use a flexible braid or a solid copper bus bar jumper for an equipment bond?
Use a flexible braid like the FB3F12 wherever the two connection points can move relative to each other: expansion joints, equipment on vibration isolators, transformer or generator terminations, and hinged doors on enclosures. A solid bar is fine only between rigidly fixed points, because any repeated flexing will work-harden and crack it. The FB3F12 is a flexible flat conductor built for exactly that duty.
7) Is the Blackburn FB3F12 made in the USA?
Yes, the FB3F12 flexible braid has a country of origin of the United States, which matters on federally funded and Buy American specified jobs.
8) Does the Blackburn FB3F12 come in other lengths, and is it sold in packs?
The FB3F12 is the 12 inch version and is sold individually, one braid per unit. If your span between bonding points is longer, you need a different length in the FB series rather than stretching this one, since the stated length is the braid overall.
How fast can I get the Blackburn FB3F12 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 Blackburn FB3F12 come with a warranty?
Absolutely. The Blackburn FB3F12 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 FB3F12?
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