GeneratorJoe GJCO-20-3

The GeneratorJoe Model GJCO-20-3 is a Corporal™ Series generator with 20 kW (25 kVA) 60 Hz, or 16.7 kW (20.8 kVA) 50 Hz. of maximum output.  These commercial mobile generators are suitable for prime power and standby use. When you need the dependability of an industrial grade commercial mobile generator, with all the features you need, the Corporal™ Series is for you. Available in several models, including single and three phase voltages of your choice, 50, 60 and 400 Hertz. These models are competitively priced to deliver the performance and value found only on more expensive competitors models.  We can customize any model to meet your specific needs.  Air-flow from bottom to side and side to side are available. All models in this series is prime power rated and serviced from a single side.

GeneratorJoe generators are designed for vehicle or trailer mounted applications where continious power is needed. GeneratorJoe generators are manufactured to our exacting specifications using the latest manufacturing technologies. All models are built with the quality and reliability you would expect from a leading generator manufacturer. All our generators are proudly built in America by Americans.  Typical appications include military equipment, and vehicles such as food trucks, shredder trucks, bed bug irradication trucks and trailers, foam/insulation trucks, concrete cutting/demolition equipment and more.

The Newage Stamford brushless alternator utilized on this model is manufactured to exacting specifications using the best manufacturing methods.  GeneratorJoe generators use electronic technology to control the voltage with a voltage variation of less than 5% throughout the entire power range. That means you can use this generator with computers and sensitive electronics safely, with no sacrifice in generator performance.

This model features a premium Kubota Model 2503, 4 cylinder, 34.4 HP, gasoline fueled, liquid cooled engine with electric start.  This model runs at 1800 RPM and generates 20 kW (25 kVA) 60 Hz, or 16.7 kW (20.8 kVA) 50 Hz. of Standby (emergency or maximum) power and 18 kW 15 kW prime (continuous) power at a primary voltage of 120/208 VAC, three phase, 50/60/400 Hertz, with 5% voltage accuracy 0.5% Frequency accuracy.  Single phase models are available as 120/240 VAC.  Three phase models are available as 120/240, 120/208 or 277/480 VAC.  If 50 Hz models are available they would be built as a special order.  For 50 Hz voltages and amperage ratings, click on the Detailed Specifications tab and then check the 50 Hz check box.  This model has economical fuel use of 0.7 gallons at 1/2 load.  Running time is over 71.7 hours on a typical tank.  See Fuel Tanks below for additional information. 

Dimensions: Enclosed quietness is 68 db at 7 meters.

Quality Control & Load Bank Testing: All GeneratorJoe generators are factory load bank tested to 110% of rated capacity for four hours. Load bank test reports are provided on units built upon request, after construction. Because all units we build are factory tested the customer does not need to pay for factory startup services to activate the warranty. We use the best available components on every generator built, including the best air/oil/fuel filters, hoses/hose clamps, wiring harnesses and connectors. We do not use imported parts, all components are Made in the USA. 

Enclosures: Weather and sound proof enclosures (if available), are built using steel panels and locking doors on a modular structural base frame. Sound enclosures include a rock-wool layer of insulation, which complies with the prevailing regulations and accomplishes the sound attenuating elements. Most enclosures include hot ambient air extraction fan. Select an enclosure from the Product Options windows, if available.

Fuel Tanks: Fuel tanks in various sizes that can be used with this model are shown on the Priced Options tab.

BUTTONS: The Buttons describe below provide information to help you select the right generator for your situation.

Compare: To compare this generator to another model, click on the Compare Button. Then select another model and click compare on that model. You can select up to 5 models at a time. Then click Compare on the comparison window and a chart will appear. You can print the chart and compare many factors including dimensions, weight and fuel economy .

Value Converter: To convert one value to another use the Value Converter Button.

Factory Brochure: To see a printable factory brochure for this product click on the Factory Brochure Button.

Warranty: To see a printable warranty for this model click on the Warranty Button. The price shown includes a factory warranty of 24 months or 3000 hours whichever comes first.

Website Help: To obtain website help click on the Website Help Button.

TABS: You are reading the Detailed Description tab.  The other available Tabs are explained below. You can go to any tab or button and you will remain on the selected generator model when you close the window or click on another tab.

Priced Packages: To see typical priced packages using this product click the Priced Packages tab.

Priced Options: To see the options available on this model, including transfer switches and external fuel tanks, click on the Priced Options tab.

Detailed Specifications: To see a printable detailed specification on this product click the Detailed Specifications tab. A new window will open where you will find conversions for metric measurements, single phase de-ration of three phase units, derating calculations for elevation and temperature as well as fuel consumption and total run time by tank size and more. You can print the tab contents and go to other tabs when you are done.

Technical Summary: To see a printable technical summary for this product click the Technical Summary tab. You can print the tab contents and go to other tabs when you are done.

Model Features: To see a printable list of Standard and Optional features for this product click the Model Features tab.  You can print the tab contents and go to other tabs when you are done.

Lease Purchase: To obtain lease purchase pricing for this product with variable factors click on the Lease Purchase tab. A new window will open, follow the instructions on the page.

Product Families: To see other products in this Series or in related Series click the Product Families tab. A new window will open, follow the instructions on the page.

Product Finder: To find generators of various types, fuels and configurations click the Product Finder tab. A new window will open, follow the instructions on the page.

Transfer Switches: The automatic transfer switch monitors utility and generator power. When utility power fails or is unsatisfactory, the transfer switch control starts the generator set. Click on the Transfer Switch tab for a complete explanation and to look up prices on the full line of switches we carry. A new window will open, you can select a switch and click Info/Buy to add the switch to the shopping cart.

Other Requirements or Options and GSA:  If you do not find the options you need on Priced Options tab if you have requirements you cannot find or if you have questions, please contact us. If your needed option is not available we have many other brands that may provide the options you need or we will custom build a generator to your specifications. Please contact GeneratorJoe at (707) 542-2224 or write [email protected]. If you are a college or university, federal, state, county, city or government agency customer write to [email protected].

Additional Information on this product is available on buttons on this page and links at the bottom of this page.