Kohler 20kW Home Standby Generator

Kohler 20RCA

Brand: Kohler
Equipment Price: starting at $5090

The Kohler 20RCA Generator, available through Carolina Energy Systems, is a top-of-the-line standby generator designed to provide dependable power backup for residential settings. One of the most popular models offered by Kohler Generators, this generator can easily support essential household appliances and systems during unexpected power outages, ensuring continuous comfort and peace of mind. Carolina Energy Systems takes pride in offering the Kohler 20RCA Generator, providing customers with a reliable solution backed by their expertise and exceptional service.

Product Description

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.*

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

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


  • 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.
  • Streamlined installation, simple terminal block for easy field connections. Kohler also offers concrete mounting pads to lower installation costs and time.
Generator Specifications

Model: 20RCA
Rated kW LP: 20 kW
Rated kW NG: 18 kW
Amps LP: 83 amps
Amps NG: 75 amps
Peak Motor Starting kVA @240 V: 41 kVa
Alternator Note: All information shown is for 1 Phase 60 Hz generator with the largest alternator option available.
Displacement: 999 cm³ (61 cu. in.)
Horsepower: NG 27.1 HP, LP 30.9 HP
Enclosure Material: Aluminum
Sound Output During Weekly Exercise: 64 dB(A)
Sound Output During Full-speed Operation: 69 dB(A)
Response Time: 10 seconds
Warranty: Premium five-year limited warranty
Country of Origin: US
Certifications/Listings: CSA,EPA,cUL,UL 2200
Automatic Transfer Switch Included: Sold Separately
Remote Monitoring Available: Included
Off Grid / Utility Backup: Utility Backup
Weight: 555 lbs. (252 kg)
Alternator Type: 2-Pole, Rotating Field
Fuel Consumption on NG at 50% load?: 161 cfh
Fuel Consumption on LP at 50% load?: 82 cfh
Controller: RDC2 Controller
Cylinder Arrangement: V-2
Dimensions: 1193 mm x 666 mm x 817 mm (47 in. x 26.2 in. x 32.2 in.)
Engine Manufacturer/Description: KOHLER
Engine Model: CH1000
Engine/Alternator RPM: 3600
Fuel Type: LPG,Natural Gas
Frequency: 60 Hz
Phase: Single Phase or Three Phase
Voltage @ 60 Hz: 120/240|277/480
Digital Voltage Regulation: ±1.0%
Built in Mounting Pad: Yes

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