Kohler Power Generators
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20RCAL with Automatic Transfer Switch and OnCue Plus

20 kW Generator

20RCAL with Automatic Transfer Switch and OnCue Plus Single Phase or Three Phase, Natural Gas|LPG

Starting at $5,286.00 MSRP*
*Starting price in US dollars. Does not include installation or accessories or costs to export outside the US.
Get a Quote Find a Dealer Required Components

Required Components

Automatic Transfer Switch Options What's This?

An automatic transfer switch (aka ATS) is a required component in your automatic backup power system. Click to see full description.

ATS Product Options *Does not include installation

Overview

Popular generators for backup power, with an automatic transfer switch included. When you lose power during an outage or storm, a hard-working 20 kW KOHLER® generator keeps your appliances working, the heat or AC running and your security system on.*

  • Reliable.
    Every KOHLER® generator is equipped with a heavy-duty, commercial-grade engine that stands up to extreme weather.
  • Powerful.
    In just 10 seconds, your KOHLER generator automatically restores power to a 5-ton (60,000 BTU) air condition, 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.

THE POWER YOU NEED

  • PowerBoost™ technology provides power to start large loads such as central air conditioners without dropping power to other appliances
  • Extraordinary peak motor-starting capacity: 14RCAL at 33kVA at 240V and 20RCAL 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

THE CONVENIENCES YOU EXPECT

  • Comes with either an RXT 100-amp indoor-rated automatic transfer switch with 16-circuit load center or an RXT 200-amp outdoor-rated service entrance rated automatic transfer switch with load shed kit
  • 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.

*Based on generator and load size.

Specs
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|UL 2200|cUL|EPA
Automatic Transfer Switch Included Yes
Remote Monitoring Available Included
Off Grid / Utility Backup Utility Backup
Weight 600/611 lbs. (272/277 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 CH740
Engine/Alternator RPM 3600
Fuel Type Natural Gas|LPG
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

Automatic Transfer Switch Options What's This?

An automatic transfer switch (aka ATS) is a required component in your automatic backup power system. Click to see full description.

ATS Product Options *Does not include installation

Automatic Transfer Switch Options What's This?

An automatic transfer switch (aka ATS) is a required component in your automatic backup power system. Click to see full description.

ATS Product Options *Does not include installation

Required Components

Recommended Accessories

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Optional Accessories

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    Battery Heater, 14/20RESA, 230-240V

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    Feel confident that your generator will perform in sub-freezing weather. When the temperature falls below a determined level, the thermostat activates the battery heater for optimum battery temperature.

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  • Alternator Weather Cover

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  • Power Relay Module (PRM)

    Power Relay Module (PRM)

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  • 3

    3" Concrete Pad, 14/20RESA(L)

    Starting at $299.00 MSRP*

    Impact-resistant 3-inch concrete pad allows for easy installation of your 14/20RESA or 14/20RESAL generator set. Flat bottom helps your installer easily mount and level the generator and prevents it from sinking into the ground.

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  • 3

    3" Concrete Pad, 14/20RCA(L)

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    Impact-resistant 3-inch concrete pad allows for easy installation of your 14/20RCA or 14/20RCAL generator set. Flat bottom helps your installer easily mount and level the generator and prevents it from sinking into the ground.

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  • Breather Tube/Oil Heater - 120V, 20RESC(L)/RESD/RCA(L)

    Breather Tube/Oil Heater - 120V, 20RESC(L)/RESD/RCA(L)

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    Feel confident that your generator will perform in subfreezing weather with the KOHLER® Cold Weather Kit. Recommended for generators installed where the temperature regularly falls below 0°C (32°F), it’s designed to keep cold weather conditions from disrupting generator operation.  

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  • Programmable Interface Module (PIM), CSA

    Programmable Interface Module (PIM), CSA

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    Perfect for those who travel frequently or own a vacation home, the Programmable Interface Module (PIM) lets you activate critical items like storm shutters or a security system when you're away (when partnered with the OnCue® Generator Management System).

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  • Cold Weather Package - 120V, 20RESC(L)/RCA(L)/RESD

    Cold Weather Package - 120V, 20RESC(L)/RCA(L)/RESD

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    Feel confident that your generator will perform in subfreezing weather with the KOHLER® Cold Weather Kit. Recommended for generators installed where the temperature regularly falls below 0°C (32°F), it’s designed to keep cold weather conditions from disrupting generator operation.  

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    4" Concrete Pad, 14/20RCA(L)

    Starting at $367.00 MSRP*

    Recommended for storm-prone areas, the impact-resistant 4-inch concrete pad allows for easy installation of your 14/20RCA or 14/20RCAL generator set. Flat bottom helps your installer easily mount and level the generator and prevents it from sinking into the ground.

    Details
  • 4

    4" Concrete Pad, 14/20RESA(L)

    Starting at $367.00 MSRP*

    Recommended for storm-prone areas, the impact-resistant 4-inch concrete pad allows for easy installation of your 14/20RESA or 14/20RESAL generator set. Flat bottom helps your installer easily mount and level the generator and prevents it from sinking into the ground.

    Details
  • Battery Heater, 14/20RESA, 110-120V

    Battery Heater, 14/20RESA, 110-120V

    Starting at $126.00 MSRP*

    Feel confident that your generator will perform in sub-freezing weather. When the temperature falls below a determined level, the thermostat activates the battery heater for optimum battery temperature.

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  • Maintenance Kit, 17/18/20kW

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  • OnCue Plus, RDC2/DC2/VSC Controller

    OnCue Plus, RDC2/DC2/VSC Controller

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  • PowerSync™ Automatic Paralleling Module (APM)

    PowerSync™ Automatic Paralleling Module (APM)

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  • Cold Weather Package - 120V, 20RESC(L)/RCA(L)

    Cold Weather Package - 120V, 20RESC(L)/RCA(L)

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    Feel confident that your generator will perform in subfreezing weather with the KOHLER® Cold Weather Kit. Recommended for generators installed where the temperature regularly falls below 0°C (32°F), it’s designed to keep cold weather conditions from disrupting generator operation.  

    Details
  • Programmable Interface Module (PIM)

    Programmable Interface Module (PIM)

    Starting at $158.00 MSRP*

    Perfect for those who travel frequently or own a vacation home, the Programmable Interface Module (PIM) lets you activate critical items like storm shutters or a security system when you're away (when partnered with the OnCue® Generator Management System).

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