Measure two source with multi-parameters including over voltage, under voltage, over frequency, under  frequency and out of phase AC signal..• Microprocessor based design with LED display and touch pad operation.• Measure and display two source 3-phase AC voltage precisely.• Function of start generator and auto transfer when one switch fails to the other working switch.• Password protection to prevent unauthorize reconfiguration of parameters.• Parameters stored in a non-volatile memory and remains even during power failure.• Parameters can be configured locally or remote.

Automatic Transfer Switch