The NEW Vari-watt Power controller accepts a control signal input and produces output signals that can drive up to 4 Zero-Crossover Solid State Relays or a Contactor. The signal to the solid state relays implements Chromalox DOT firing which allows for switching as ac-curate as every 3 cycles (50msec). In addition, the 4 outputs evenly distribute power using the Vari-Watt’s Load Management Feature.
Select from 3 analog control inputs of 4-20ma, 0-5Vdc or 0-10Vdc to drive up to 4 SSRs. The SSR’s will fire in succession and evenly distribute the power draw via the Vari-watt’s Load Management Feature.
The Vari-Watt can accept a digital input of a 4-12Vdc 1 sec time proportion signal from a controller, and convert it to a 15sec cycle time 240Vac output for a contactor or a distributed output with Load Management to up to 4 SSR’s.