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The ControlIR Model 664 SCR Power Control family is a long standing Research Inc. product. This work-horse controller is available in Single & Three Phase configurations
and with Distributed Zero Cross as well as Phase Angle firing modes depending upon your application. Voltage ranges from 120VAC thru 600VAC, currents from 35 to 300Amps
are available. We also stock a full supply of modules and SCR's for service of your existing 664 controller. (We even continue to support the old old Model 650 Power
Controllers!)
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For detailed information select a link below:
Model 664 F/G/K User Manual
Model 664 D/E User Manual
Model 664 & 650 Parts List