Blackburn SWD190A1454 SWG XFORM LINK TNCU 1900A 4H 454MM

It's a flexible braid switchgear transformer link, built as a flat tin-plated copper braid with a four-hole pad at each end. Links like this carry current between a transformer bushing pad and switchgear bus while absorbing vibration, thermal expansion, and small misalignment that a rigid bar would transmit into the connection. The braid is built to IEEE/ANSI C37.34, the standard covering flexible shunts and links for switchgear.

No. The SWD190A1454 terminates in four-hole pads, so it needs a mating pad drilled with the matching four-hole pattern on both ends. If your transformer bushing or switchgear bus is a 2-hole pad, you need a 2-hole link instead, or an adapter pad. Match hole pattern and spacing to the existing drilling before you order.

The tin plating on this braid protects the copper strands from oxidation and is the usual choice when the link bolts to aluminum or tin-plated bus pads, since it keeps the two mating surfaces compatible and holds contact resistance down over time. Bare copper against aluminum invites galvanic corrosion at the joint.

The 1900A rating in the SWD190A1454 designation is the link's current capacity, and the braid is manufactured to IEEE/ANSI C37.34. Verify the continuous current of your switchgear connection matches or falls below that figure, and confirm your bolt torque per the switchgear manufacturer's instructions.

Sold each. A three-phase transformer connection needs three of the SWD190A1454, plus any neutral or ground link separately, so order by the phase count on the job.

Country of origin is the United States, which is what a government, utility, or institutional buyer working to a domestic-content requirement needs on the submittal. The exact manufacturer part number to cite is SWD190A1454.

Use a flexible braid where the connection has to move. A transformer vibrates and its bus grows and shrinks with load and ambient temperature; a flat flexible braid like the SWD190A1454 takes that movement and allows for small pad misalignment during installation. A solid bar is right only for fixed, aligned, vibration-free bus runs, and on a transformer it transfers stress straight into the bushing.