Harsen GU301AH Generator Controller

Manual Start Engine Control Module

The Harsen GU301AH is a compact and reliable manual start generator controller designed for easy control and protection of diesel generator sets. It provides essential engine monitoring and fault protection functions, making it ideal for industrial, commercial, and standby power applications.

With a simple key switch interface, the controller allows operators to manually start and stop the generator while monitoring vital engine parameters such as oil pressure, temperature, and speed. Its built-in protection features ensure safe and stable operation under various conditions.

Key Features:

• Manual start/stop operation with key switch control

• Monitors oil pressure, coolant temperature, and engine speed

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

• LED indicators for status and fault display

• Compact 72×72mm panel-mounted design for easy installation

• Wide DC operating range (8–35V DC)

• Durable and user-friendly construction