The ring-type core is wound from high-quality grain-oriented silicon steel which has been annealed. The secondary winding is accomplished with heavy enameled copper wire evenly distributed around the core. The assembly is then encapsulated in a mold using a polyurethane resin specifically formulated for optimal electrical insulation and weatherproof characteristics.

Secondary terminals are tinned bronze compression type with a large 0.29” (7.5 mm) diameter hole. A bronze pivoting short circuit device is an integral part of the secondary terminal arrangement. The short circuit device interferes with the proper placement of the clear polycarbonate cover when the shorting device is in the shorted position. The terminal cover is designed to accept a sealing device.

The transformer can be ordered without a base plate or with industry-standard base plates of marine-grade aluminum.

Available as an option, the flat primary bar-kit is of tinned copper and has a two-hole or four-hole NEMA pad on either end. It is centered in the transformer window by two endplates and the terminals can be rotated, as needed, to any orientation. A potential connector is installed on the primary conductor assembly by default on the H1 side of the CT, however, the potential connector can be moved to the H2 side in the field.

The DCCW model is available with high-accuracy 0.15 class ratings. These ratings offer the user the ability to use fewer standard ratios, while, in most cases, improving the accuracy performance of the metering installation.