Kohler 20KW, 3-Phase 208V Home Standby Generator with Aluminum Enclosure | 20RCA

Our 14- and 20-kW generators offer quiet, reliable performance to power your home and daily life, designed for flexible installations as close as 18 inches to any structure.

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Kohler 20KW, 3-Phase 208V Home Standby Generator with Aluminum Enclosure | 20RCA



Standard Features: UL 2200 Approval, Battery Cables, Fuel Solenoid Valve & Secondary Regulator, Oil Drain Extension With Shutoff Valve, Rodent-Resistant Construction, Critical Silencer, Sound-Deadening, Flame-Retardant Sound Shield Foam, Carb- And EPA-Certified Fuel System, Flex Fuel Line, Easy-Connect Terminal Block, Five-Year Basic On-Grid Warranty, Field Convertible to LPG Fuel, OnCue Plus. 

 Our most popular generators for backup power provide award-winning reliability and performance. When you lose power during an outage or storm, a hard-working 14/20 kW KOHLER® generator keeps your appliances working, the heat or AC running and your security system on. Now also available in 3 phase.* 


Every KOHLER® generator is equipped with a heavy-duty, commercial-grade engine that stands up to extreme weather. 


In just 10 seconds, your KOHLER generator automatically restores power to a 5-ton (60,000 BTU) air conditioner, major appliances and electronics.* 

Premium warranty. 

We’ve got you covered with 5-year, 2,000-hour protection, and a corrosion-proof enclosure that’s built to last. 

Award winner. 

KOHLER generators have received several awards, including the Most Valuable Product (MVP) Award 2010 by Building Products magazine. 

*Based on generator and load size. 

In stock

can be export

Product can be export to the Caribbean, Latin America and other parts of the world with an additional payment. Contact us for shipping from USA to your country.

IMPORTANT: Before adding your product to the cart, contact us to check the availability of the product you wish to buy. We want to serve you as you deserve.

You count on our help to help you buy the product you need. To avoid purchasing the wrong product, please contact us before purchasing.

We have trained personnel, with more than 15 years of experience in handling manufacturer's tools: printed parts manuals, Power Parts online (electronic parts catalog), Product 360 (product configuration and kits that comprise it, as it was assembled in the factory), intranet Bill of Materials, among others. That is, we can determine 100% unequivocally which is the product you need.

Additional Info


Details and Specifications


  • PowerBoost™ technology provides power to start large loads such as central air conditioners without dropping power to other appliances 
  • Extraordinary peak motor-starting capacity: 14RCA at 33kVA at 240V and 20RCA at 41kVA at 240V 
  • Premium power quality delivers exceptional digital voltage and frequency regulation along with low levels of harmonic distortion to protect sophisticated electronics 
  • Powered by reliable KOHLER Command PRO® engine, designed and tested for tough commercial applications; with hydraulic valve lifters to eliminate need for lengthy break-in periods and expensive valve adjustments; operation speed is 3600 rpm (the standard for air-cooled generators) 
  • Compatible with OnCue® Plus and OnCue® Plus Wireless Generator Management Systems, and Programmable Interface Module (PIM) 
  • Also compatible with Load Control Module (LCM) or Load Shed kit with single-phase generators only 


  • RDC2 controller designed for today's sophisticated electronics manages both the generator set and Model RXT transfer switch functions 
  • Quiet, neighborhood-friendly operation with sound levels similar to a typical central air conditioner 
  • Stylish corrosion-proof enclosure impact tested to -30°F 
  • Runs on either natural gas or liquid propane (LPG) with simple switching between natural gas and LPG in the field 
  • Streamlined installation, simple terminal block for easy field connections. Kohler also offers concrete mounting pads to lower installation costs and time. 

Product Specifications:

Rated kW LP20 kW
Rated kW NG18 kW
Amps LP83 amps
Amps NG75 amps
Peak Motor Starting kVA @240 V41 kVa
Alternator NoteAll information shown is for 1 Phase 60 Hz generator with the largest alternator option available.
Displacement999 cm³ (61 cu. in.)
HorsepowerNG 27.1 HP, LP 30.9 HP
Enclosure MaterialAluminum
Sound Output During Weekly Exercise64 dB(A)
Sound Output During Full-speed Operation69 dB(A)
Response Time10 seconds
WarrantyPremium five-year limited warranty
Country of OriginUS
Certifications/ListingsUL 2200,EPA,CSA,cUL
Starting Battery Spec: 12VDC 500CCA Group 51Sold Separately
Automatic Transfer Switch IncludedSold Separately
Remote Monitoring AvailableIncluded
Off Grid / Utility BackupUtility Backup
Weight555 lbs. (252 kg)
Alternator Type2-Pole, Rotating Field
Fuel Consumption on NG at 50% load161 cfh
Fuel Consumption on LP at 50% load82 cfh
ControllerRDC2 Controller
Cylinder ArrangementV-2
Dimensions1193 mm x 666 mm x 817 mm (47 in. x 26.2 in. x 32.2 in.)
Engine Manufacturer/DescriptionKOHLER
Engine ModelCH1000
Engine/Alternator RPM3600
Fuel TypeLPG,Natural Gas
Frequency60 Hz
PhaseSingle Phase or Three Phase
Voltage @ 60 Hz120/240|277/480
Digital Voltage Regulation±1.0%
Built in Mounting PadYes

PRODUCT Related documents:

Booklet, Product Knowledge, Consumer, Res_Lt Coml - G12-434 10_21

Brochure, Consumer, Res_Coml - G12-429 5_21

Brochure, Standby and Portable Full Line - G12-458 5-21

Dimensional Drawing - ADV-8928

Generator Operation Manual - TP-7092

Generator Parts Catalog - TP-7094

OnCue Plus, Quick Start Guide G18-247 11_16

Sell Sheet 14_20RCA - G12-497

Sell Sheet, OnCue Plus Generator Management System - G12-538

Sell Sheet, Residential Maintenance - G12-333 5_21

Spec Sheet 20RCA(L) - G4-272

Spec Sheet OnCue Plus Generator Management System - G6-179

Stationary Standby Five-Year or (2000)-Hour Limited Warranty - TP6479 1_16j

Additional Info
Weight555 lbs
Dimensions47 × 26.2 × 32.2 in


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