Kohler Power Generators
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20RESCL with Automatic Transfer Switch

20 kW Generator

20RESCL with Automatic Transfer Switch Single Phase, LPG|Natural Gas

Starting at $5,146.00 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 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.

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: 20RESCL 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 optional 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 RXT 200-amp outdoor-rated service entrance rated automatic transfer switch with load shed kit
  • 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

*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 Composite
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 cUL|EPA|UL 2200
Automatic Transfer Switch Included Included
Remote Monitoring Available Sold Separately
Off Grid / Utility Backup Utility Backup
Weight 580 lbs. (263 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 1216 mm x 665 mm x 733 mm (48 in. x 26.2 in. x 29 in.)
Engine Manufacturer/Description KOHLER
Engine Model CH1000
Engine/Alternator RPM 3600
Fuel Type LPG|Natural Gas
Frequency 60 Hz|50 Hz
Phase Single Phase
Voltage @ 60 Hz 120/240
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

Required Components

Recommended Accessories

  • Battery Heater, 120V

    Battery Heater, 120V

    Starting at $149.00 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.

    Details
  • Carburetor Heater, 40W, 240V, 20kW

    Carburetor Heater, 40W, 240V, 20kW

    Starting at $113.00 MSRP*

    If you live where temperatures routinely dip below freezing, a carburetor heater helps keep cold weather conditions from disrupting generator operation.

    Details
  • Fuel Regulator Heater Kit, 120V, 20 kW

    Fuel Regulator Heater Kit, 120V, 20 kW

    Starting at $177.00 MSRP*

    Just like in your car, the fuel regulator regulates the flow of engine fuel for consistent pressure. The kit ensures that the engine in your KOHLER® generator runs smoothly, even in sub-zero weather.

    Details
  • Fuel Regulator Heater Kit, 240V, 20 kW

    Fuel Regulator Heater Kit, 240V, 20 kW

    Starting at $227.00 MSRP*

    Just like in your car, the fuel regulator regulates the flow of engine fuel for consistent pressure. The kit ensures that the engine in your KOHLER® generator runs smoothly, even in sub-zero weather.

    Details

Optional Accessories

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

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

    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.

    Details
  • Alternator Weather Cover

    Alternator Weather Cover

    Starting at $11.00 MSRP*

    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
  • Power Relay Module (PRM)

    Power Relay Module (PRM)

    Starting at $63.00 MSRP*

    Even if you purchase a smaller generator, you can prioritize what you power with Power Relay Modules (PRM). During a power outage, your entire house is connected to generator power, but PRMs cycle some circuits on and off to prevent overloading.

    Details
  • Programmable Interface Module (PIM), CSA

    Programmable Interface Module (PIM), CSA

    Starting at $197.00 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).

    Details
  • Breather Tube Heater/Oil Heater Kit, 120V (20kW)

    Breather Tube Heater/Oil Heater Kit, 120V (20kW)

    Starting at $251.00 MSRP*

    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
  • Battery Heater, 120V

    Battery Heater, 120V

    Starting at $149.00 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.

    Details
  • OnCue Plus - Wireless Radio Kit

    OnCue Plus - Wireless Radio Kit

    Starting at $175.00 MSRP*

    This new wireless kit expands ability to connect the homeowner’s router and generator when running a Cat5 cable is not feasible.

    Details
  • Programmable Interface Module (PIM), UL

    Programmable Interface Module (PIM), UL

    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).

    Details