Automatic Controller GCU-20 for Generator Control Unit

sku #
Part # GCU-20

Automatic Controller GCU-20 for Generator Control Unit for sale on our website.
In addition to Automatic Controller GCU-20, you can also buy other models or other parts of Excavators, Forklift, Aerial Work Platforms AWP and etc. on our website.

50000+ Parts in Stock
50000+ Parts
in Stock
30 Days Money Back
30 Days
Money Back
2-7 Days Fast Delivery
2-7 Days
Fast Delivery
100% Secure Payment
100% Secure
Our Price
Shipping Policy

We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.


We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return & Exchange for more details.

Automatic Controller GCU-20 for Generator Control Unit

GCU-20 Automatic Engine and Generator Control Unit has many useful functions like annunciator alarm output and selectable EM81 / EM121 MPU signal for speed sensing. It's suitable for pump engine control. GCU-20 also provide IDLE control for electronic governors.

Microprocessor based design
Universal LED graphic interface, displays generator status and failures
Modular design, quick installation
With annunciator alarm output
Selectable MPU signal for speed sensing
Suitable for pump engine control
With lamp test function for all front panel LEDs and annunciator lamps
Provide IDLE control for Elec. governors
Five adjustable time delay potentiometers
Six DIP switches for setting different engine parameters

DC Supply:Voltage 9 to 36 Vdc
Alternator Input Range:
Voltage 5 to 300 Vac
Frequency 50/60 Hz
MPU Signal Input Range:+/-2V to 70V Peak
Rated MPU Frequency:100 to 10,000 Hz
Fuel Solenoid Signal Output:10 Amp @ 12/24 Vdc
Start Signal Output:10 Amp @ 12/24 Vdc
Annunciator Output:300 mA @ 12/24 Vdc
Power Consumption:Under 3 watts

Protection and Alarm Status Indicators:
Start Failure
High Water Temp.
Low Oil Pressure
No Speed Signal
Extra Prog. Input

Adjustable Timers
Engine Pre-Heat:2 to 30 seconds
Starter Cranking Time:1 to 15 seconds
Energize to STOP:1 to 15 seconds
Engine Idle (Governor):0 to 300 seconds
Engine Cool-Down:0 to 300 seconds

Operating Temperature :-20 to +60 °C
Storage Temperature:-35 to +85 °C
Relative Humidity:Less than 90%

More Information
Part NO. GCU-20
No Questions
Write Your Own Review
Only registered users can write reviews. Please Sign in or create an account