Specialty Product Technologies POWERSTAT® Variable Transformer 1256D Series

The 1256D Series are offered in single and three phase assemblies. The 1256D Series types operated from 240V lines. The rated output for constant current loads is 28A. The load rating ranges from 28A-252A depending on input voltage. Please refer to the catalog rating charts. The 1256D Series can be operated at any frequency between 50 and 500 Hz. Refer to Figure A in the catalog for the reduction in allowable output current when operated at higher than rated frequency. The 1256D Series may be bench or back-of-panel mounted. Available in open construction, screened, terminal enclosure and screens or with a NEMA 1 Enclosure. Units are can be operated manually or motor-driven. The 1256D Series assemblies are completely self-contained. They are fully assembled and include all paralleling chokes and connections, input and output terminals for copper wire, bases, shafts, lifting eyes and output fuses.