GCU-30 is a manual key start genset control and protection module suitable for most available genset on the market
The GCU-30 is a manual key start control module for gensets, offering protection against high temperature, low oil pressure, over-speed, and charge alternator failure. It features a 3P dip switch for system settings including AC frequency, engine stop mode, and timer delay. The module includes pre-heat and start functions with LED indicators and automatic shutdown if engine fails to fire. It operates on 9–36V DC or 5–300V AC and is rated for -20°C to +60°C.
The manual details operation steps, warning conditions, and a standard wiring diagram. It also explains how to reset warnings and handle engine failure, with specific failure icons and LED indicators for maintenance.
| Rated DC Input Voltage | 9.0 to 36 V |
|---|---|
| Rated AC Input Voltage | 5 ~ 300VAC |
| AC Frequency | 50/60 Hz |
| Operation Temperature | -20 °C to +60 °C |
| Relative Humidity | 90% or Below |
| Weight | 101 g ± 2% |
The delay is 20 seconds if SW3 is ON, or 10 seconds if OFF.
The module will automatically disengage the starter motor and shut down the engine to prevent damage.
Turn the key switch to OFF position to reset the warning notice.