GeneratorJoe, Home/Commercial Generator, 20 kW, (25 kVA) 60 Hz,, LP/NG fueled, liquid cooled, three phase, Model 20 RDF3

GeneratorJoe generators are designed for many applications where power is needed. GeneratorJoe generators are manufactured to commercial specifications using the latest manufacturing technologies. All models are built with the quality and reliability you would expect from a leading generator manufacturer.

The Marathon brushless alternator used on this model is manufactured to exacting specifications using the latest mass production methods. GeneratorJoe generators use technology to control the voltage with a voltage variation less than 3% throughout the entire power range. That means you can use this generator with computers and sensitive electronics, safely, with no sacrifice in performance.

Open dimensions are 57.5" Long X 30" Wide X 32" High. Open weight is 750 lbs. Enclosed dimensions are 58" Long X 30.5" Wide X 33" High. Enclosed weight is 805 lbs. Open quietness is 73 db at 7 meters. Enclosed quietness is 70 db at 7 meters.

Fuel Tanks: Fuel tanks are provided by your local propane supplier. We do not sell propane tanks.

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, checks the generator speed and voltage output and transfers the load to the generator set. When utility power is restored the transfer switch automatically transfers back to utility power. The generator is allowed to cool down for a short period and then shuts down. The system instantly resets itself and is ready for the next power interruption. No action is required by the user.

You must select a transfer switch that is the same size in amps (or larger) then your building service or sub-panel. The transfer switch must also be the same size in amps (or larger) than the maximum output of the generator you select. Example: If you have a 12 kW generator operating at 120 VAC single phase, (100 Amps) and a 200 amp building service you need a 200 Amp transfer switch or you must install a 100 Amp sub-panel. Transfer switches should be installed by a licensed electrician. For more information on transfer switches please see About Transfer Switches.

Select a transfer switch to go with your generator from the drop down option list at the top of this page under Product Options. The transfer switches shown are compatible with this generator. If you need additional transfer switch poles, auxiliary contacts or communications features, ASCO Transfer Switches. For special needs, volume purchases and other questions, call your GeneratorJoe sales representative at 707 539-9003 for assistance. All ASCO switches are shipped FREE when you purchase the switch with a generator. 

Other Requirements or Options: If you do not find the options you need in the drop down option windows above or if you have other requirements, please call us and tell us what you require. If your needed option is not available we have many other brands that may provide the options you need or we will have a generator custom made if necessary. Please contact us at (707) 539-9003 or write sales@generatorjoe.net.

Please see our extensive educational area on the left side blue column of this screen under the Information sign.