The GU611A is an Automatic Mains Failure Controller. When running in “AUTO” mode, it detects the Mains. It starts the generator automatically on Mains voltage failure, Gen is on load; when Mains resumes to normal, it stops the generator after delay, Mains is on load. The controlling procedure and protection parameters for generator can be modified, which fully meets the Genset’s requirements of automatic start, stop control and basic protection.

1. The module displays fault conditions, operational status and related metering data on panel LCD.

2. LCD has a backlight function so that the operator can read running parameters clearly even in the shadow.

3. The controller has 2 modes: AUTO and MAN. Either can be chosen through the panel push button.

4. Measures and displays generator’s output voltage, current, oil pressure, coolant temperature, frequency, DC source voltage, etc.

5. True RMS measure of voltage and current, which ensures the data more accurate.

6. Control the close/open of GCB and MCB outputs.

7. Equipped with built-in communication interface to configure parameters by PC.

8. All connections of controller are connected by pin locked up terminals, easier and more convenient to connect, move, maintain and replace the device.