Excellent 4.9 | 18,452 reviews

Aurora Generators Cummins QuietConnect 20kW Air-Cooled Extreme Weather: RS20AC Series Home Standby Generator - PowerGen USA  - A071Z402

Aurora Generators Cummins QuietConnect 20kW Air-Cooled Extreme Weather: RS20AC Series Home Standby Generator - PowerGen USA  - A071Z402

$5,270.99
$5,270.99 $7,026.79
SAVE 24% Sold out
Aurora Generators Cummins QuietConnect 20kW Air-Cooled Extreme Weather: RS20AC Series Home Standby Generator - PowerGen USA  - A071Z402

Aurora Generators Cummins QuietConnect 20kW Air-Cooled Extreme Weather: RS20AC Series Home Standby Generator - PowerGen USA  - A071Z402

$5,270.99
$5,270.99 $7,026.79
SAVE 24% Sold out

Aurora Generators Cummins QuietConnect 20kW Air-Cooled Extreme Weather: RS20AC Series Home Standby Generator - PowerGen USA  - A071Z402

Robust Design – The generator is designed to operate in cold weather with performance down to 0 °F (-18 °C) out of the box. The extreme cold weather models can perform down to -40 °F (-40 °C) out of the box. It is tested and certified per the latest EPA, UL, and CSA standards. The generator meets NFPA 37 which allows it to be installed 18 inches from a building. It has powerful motor starting ability and can easily start and run a 5-ton A/C¹ under full pre-load.

Intelligent Load Management - The generator can control up to 4 loads and continuously monitors how much power is required independently for each load. It then controls each load for maximum utilization of generator power by only restoring loads the generator has capacity to run.

Flexible Exercise Modes - Exercise modes can be set for time, date, and frequency that suits the owner. Our patented ‘Crank only’ exercise mode allows the generator to crank the engine and run diagnostics without starting the engine. This reduces wear and tear on the engine, fuel costs, and further reduces the sound of an already quiet generator.

Remote Monitoring - Remote monitoring is built into every generator. Using a computer, tablet, or smart phone, an operator can monitor, change exercise modes, and manually run the generator remotely.

Generator and ATS packaged sets – The RS20AC comes with a 20-kW generator and 200A service entrance rated ATS in one box to make ordering more convenient.

What our Experts Think
  • True Whole-Home Protection: The Cummins QuietConnect RS20AC delivers 20kW of automatic standby power, making it an excellent choice for keeping essential home systems running during outages.
  • Built for Extreme Weather: Designed to operate in temperatures as low as 0°F out of the box, with the Extreme Weather model rated down to -40°F, ensuring dependable year-round performance.
  • Quiet & Reliable: A 999cc Cummins V-Twin OHV engine, weather-resistant enclosure, and 65 dB(A) operation provide dependable backup power with minimal noise.
  • Smart Home Integration: Features remote monitoring, clean power with <5% THD, automatic operation with a compatible transfer switch, and intelligent load management capability for seamless backup.
  • Best For: Homeowners seeking a premium whole-home standby generator with quiet operation, extreme weather performance, and dependable automatic backup power.


Q&A

Q: What is the Cummins QuietConnect RS20AC best for?
A: It is designed for whole-home standby backup power, automatically supplying electricity during outages for homes and small businesses.

Q: How much power does the RS20AC provide?
A: It delivers 20,000 running watts (20kW) of reliable standby power at 120/240V single-phase.

Q: What fuel does the generator use?
A: It operates on natural gas or liquid propane (LP), with field-selectable fuel configuration.

Q: Is it suitable for extreme weather?
A: Yes. The Extreme Weather model operates down to 0°F (-18°C) out of the box, and with the extreme cold package can perform in temperatures as low as -40°F (-40°C).

Q: How quiet is the RS20AC?
A: It operates at approximately 65 dB(A) at 23 ft (7 m), offering quiet performance for a home standby generator.

Q: Does it support remote monitoring?
A: Yes. It supports Cummins Connect Cloud, allowing you to monitor, exercise, and manage the generator remotely using a smartphone, tablet, or computer.

Q: What safety and reliability features are included?
A: It features automatic operation with a transfer switch, low-oil shutdown, clean power with less than 5% THD, and compliance with EPA, UL, CSA, and NFPA 37 standards.

Q: How should I maintain the Cummins RS20AC?
A: Follow the recommended maintenance schedule, check engine oil and battery regularly, keep air vents clear, inspect the fuel system, and perform routine exercise cycles to ensure reliable standby performance. 


Maintenance Tips
  • Check engine oil level regularly and inspect the generator for leaks or loose connections before operation.
  • Change the engine oil and oil filter according to the recommended maintenance schedule using the specified engine oil.
  • Keep the air intake, cooling vents, and enclosure clean and free of dirt, leaves, and debris for proper airflow.
  • Inspect and maintain the starting battery, replacing air filters and spark plugs at the recommended service intervals.
  • Run the generator's scheduled exercise cycle and perform periodic system tests to ensure standby readiness.
  • Have major maintenance and warranty service performed by an authorized Cummins technician to maintain reliability and warranty coverage
View full details