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Manufacturer Resources
Product Specs
- Cable Length:
- 635 mm
- Conductor Category:
- Flexible
- Conductor Shape:
- Flat
- Country Of Origin:
- United States (US)
- Material Of Conductor:
- Tin-Plated Copper
- Product Group:
- Power Distribution
- Product Type:
- Transformer Link Connector
- Selling Unit Of Measure:
- each
- Standards:
- IEEE/ANSI C37.34
- Type2:
- Flexible braid
- Department:
- Electrical
- Product Subgroup:
- Power Distribution Blocks
Blackburn SWD190A1635 – Frequently Asked Questions
1) What is the Blackburn SWD190A1635 flexible braid connector used for?
It is a flexible braid switchgear/transformer link, four-hole, made of tin-plated copper in a flat conductor form. The braid lets two rigid bus connections move relative to each other (thermal expansion, vibration, seismic movement, or equipment that has to be rolled out) without stressing the bus or the terminal pads. Model designation SWD190A1635.
2) Do I need four bolts per end on this braid connector?
Yes. It is a 4-hole pad connector, so each end lands on a four-hole NEMA-style bus pad and takes four bolts per end. Hardware is not part of the connector; plan on bolts, Belleville or flat washers and nuts sized to the pad holes, and torque them to the switchgear or transformer manufacturer's values.
3) Is the SWD190A1635 rated for the 1900 amp bus in my switchgear?
The model is a 1900 A switchgear transformer link, so it is sized for bus duty at that rating. Derating for enclosure temperature, altitude and grouping is a design decision on your end; the connector itself is the 1900 A member of the SWD flexible braid series.
4) What standard does this Blackburn switchgear link comply with?
It is built to IEEE/ANSI C37.34, the standard covering high-voltage air switches and their connection components. If your submittal calls out C37.34 flexible connectors, this one meets that reference.
5) Why tin-plated copper instead of bare copper for a bus link?
Tin plating over the copper braid slows oxidation at the bolted interface, which matters on a joint that carries heavy current and may sit for years between inspections. It is also the right match when you are bolting to tin-plated or aluminum bus pads, where bare copper contact invites galvanic trouble.
6) Should I use a flexible braid link or rigid bus between a transformer and switchgear?
Use flexible braid wherever the two ends can move: transformer-to-switchgear throats, seismic joints, long bus runs that grow and shrink with load cycling, and drawout equipment. Rigid bus with an expansion joint works for straight runs inside a lineup, but it transfers any misalignment straight into the bolted pads. This part is the flexible, flat-conductor option for that connection.
7) Is this sold individually or as a set of three for a three-phase connection?
It is sold each. A three-phase transformer-to-switchgear connection needs one per phase, so order three (plus any neutral or ground link) to complete the set.
8) Is the Blackburn SWD190A1635 made in the USA for a Buy American job?
Country of origin is the United States, which is what a federally funded or Buy American project submittal will be looking for on the flexible connector line item.
How fast can I get the Blackburn SWD190A1635 delivered?
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Can I return it if it doesn’t work for me?
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reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Blackburn SWD190A1635 come with a warranty?
Absolutely. The Blackburn SWD190A1635 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 SWD190A1635?
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