The 1156D Series operates from 120 volt lines and the 1256D Series from 240 volt lines. The rated output for the 1156D Series is 50 amperes for constant current loads and 55 amperes for constant impedance loads. The 1256D Series is rated at 28 amperes for both constant current and constant impedance loads.
Superior Electric 1156D & 1256D Series – POWERSTAT Variable Transformers
POWERSTAT® Variable Transformers of the 1156D and 1256D Series are available in single and three phase, manually operated and motor-driven assemblies.
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