Harsen GU621A-00 Generator controller 
Harsen GU621A-00 Generator Controller
GU621A-00 is a new generation on single generating set intelligent controller which is new shape and structure. It has improved the performance of the controller so that the new product can meet the needs of the user and generator assembly plants for different types, including oil and gas generators of Automatic switch control generation and protection needed.
GU621A-00 is an Automatic Mains Failure controller which can detect a fault in the mains and automatically switch over onto standby power.
Features:
1, Voltage and current are using the true RMS measure;
2, Menu can be chosen in multi-languages;
3, Using 128 * 64 dot matrix LCD display;
4, Providing time presets and reminds function in unit maintenance;
5, 4 configuratable control relay ouputs, and a variety of sensor selected in it, you also can set parameters;
6, More defined auxiliary control relay output;