The 136B and 236B Series POWERSTAT® Variable Transformers are available in single and three phase, manually operated and motor-driven assemblies. The 136B Series operates from 120 volt lines and the 236B Series from 240 volt lines. The rated output for constant current loads is 22 amperes for the 136B Series and 10 amperes for the 236B Series. For a constant impedance load the maximum rated output current at line voltage is 28 amperes for the 136B Series and 13 amperes for the 236B Series. POWERKOTE coils are featured on all units of the 136B and 2368 SerIes.