Features
|  |
40-500 amps, 500V max.
| The Model TU2170 SCR embly with dial communications control is used for three phase resistive or infrared loads that are vised or controlled by a communications link. With line currents from 40A–500A up to 500V max, the TU2170 performs time proportioning control of two phases of a three-phase resistive load (three-wire wye or delta). A variety of og inputs are accepted and fast and single cycle firing modes may be selected. The TU2170 has partial load failure for resistive or IR loads | and uses V-squared or VxI feedback. Dial communications are available with Profibus®, Modbus®, US or EI-Bisynch protocol. Automatic transfer to og setpoints occurs in the event of communications failure. Alarms may be annunciated by LED’s, a relay contact or via the serial link. Units 100A and up are fan cooled. Fuses are external (above 250A– internal) and ordered separately. It may be used with the model 260 Diagnostic Unit. | ||||
