Harsen GU320A Generator Controller

Smart Automatic Generator Control Module

The Harsen GU320A is an intelligent automatic generator controller designed for precise monitoring, control, and protection of diesel generator sets. Built with a powerful microprocessor, it provides stable and efficient management of engine and electrical parameters in both standby and prime power applications.

With multiple operation modes including Auto, Manual, and Test, the GU320A ensures reliable performance and flexible control. It continuously monitors vital parameters such as voltage, current, frequency, oil pressure, coolant temperature, and engine speed, while offering comprehensive fault protection and event logging.

Key Features:

• Automatic, manual, and test operating modes

• Real-time monitoring of voltage, current, frequency, and RPM

• Built-in protection for low oil pressure, high temperature, and overspeed

• LCD display with backlight and multilingual interface

• Communication via RS-485 (Modbus RTU) for remote monitoring

• Event logging and alarm history

• Compact panel-mounted design with wide DC voltage range