The Datakom DKG-193 Phase Selector Relay monitors mains phases to output one phase within preconfigured limits. This ensures power continuity for single phase systems by using the healthiest phase. If the output phase voltage goes outside the programmed limits for the programmed fault duration, another phase is selected and supplied to the output of the device. If none of the input phases are within the limits, No Phase alarm LED turns on.
The unit’s voltage limits and fault durations can be configured from the programming menu. In addition, one phase can be assigned priority and contactor blocking mode can be enabled and disabled. Relay outputs can also be enabled/disabled from the programming menu. The R-S-T LEDs located on the front panel indicate which phase is being fed to the output. Alarm LEDs indicate fault status. Blocked contactors can be reset and alarms can be dismissed using the relevant buttons on the unit. The unit is supplied by the phase input and does not require a DC supply
FEATURES
DIN Rail Mounted
DC Supply Not Required
Contactor Blocking Mode
Configurable Mains Voltage High-Low Limit
Configurable Mains Voltage Instantaneous
High-Low Limit
Priority Phase Configuration
Adjustable Hysteresis Voltage
Adjustable Mains Power Unavailable Limit
Adjustable Relay Transfer Timer
Adjustable Reaction Timers
3A/250VAC Contactor Outputs
Stuck Contactor Alarm
No Phase Available Alarm
Contactor Fail To Close Alarm