2019 Kohler Engine 20RESCL 20 kW Generator


Kohler Engine
20RESCL 20 kW Generator



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

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: 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
  • DC2 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.
  • 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: EPA|UL 2200|cUL
  • Automatic Transfer Switch Included: Yes
  • Remote Monitoring Available: Yes
  • Off Grid / Utility Backup: Utility Backup
  • Weight: 580 lb. (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: DC2 Digital 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: 50 Hz|60 Hz
  • Phase: Single Phase
  • Voltage @ 60 Hz: 120/240
  • Digital Voltage Regulation: ±1.0%
  • Built in Mounting Pad: Yes
*Based on generator and load size.



Engine Type
Gas: 27.1 hp; LP: 30.9 hp
61 cu. in. (999 cm³)


48 in. (1216 mm)
26.2 in. (665 mm)
29 in. (733 mm)
580 lb. (263 kg)


AC Output
18 kW
Noise Level
69 dB(A)

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