Phasetronics Model 1P1 Series of single-phase SCR Power Controllers feature phase angle control to provide smooth proportional output power from 0 - 100%. The model 1P1 controllers are available with load current ratings ranging from 120 through 575Vac. These units are ideally suited for all resistive, inductive and lamp type loads. With a variety of standard pre-engineered options, they are the ideal choice for system designers, p anel builders and end users. Standard features on all Model 1P1 units include isolated heatsink design through 75 amperes, fast blow fuses and transient voltage protection networks, and high PIV rated SCR’s. State-of-the-art digital electronics with hard fi?ring gate pulse and associated logic control circuitry allows these units to accept a variety of input control signals.