Skip to content
Save $100 on $2000+ Orders with code SAVE100L&C - Christmas Sale Ending in 48hrs | Hundreds of Top-Rated Reviews | Speak With An Expert 854-777-0909 (Mon-Fri 9a-5p CST)
Save $100 on $2000+ Orders with code SAVE100L&C - Christmas Sale Ending in 48hrs | Hundreds of Top-Rated Reviews | Speak With An Expert 854-777-0909 (Mon-Fri 9a-5p CST)

Cummins Quiet Connect 20kW Home Standby Generator

Save $453.00 Save $453.00
Original price $6,682.00
Original price $5,438.00 - Original price $6,682.00
Original price $6,682.00
Current price $6,229.00
$5,069.00 - $6,229.00
Current price $6,229.00

Cummins Quiet Connect 20kW Home Standby Generator

Don't Miss a Beat When the Power Goes Out

Say goodbye to the stress that power outages put on your home and your family.

Keep every light on when you protect your home with 20kW of backup power. Enough to power your entire electrical panel (in most cases). Protect your family with a Quiet Connect 20kW Home Standby Generator backed by Cummins. The industry leader for over 100 years.

Key Features

  • 20,000 Watt Rated
  • 120/240V Single-Phase
  • Air-Cooled and Emergency Grade
  • LP/Natrual Gas Fuel
  • Easily Power 5-Ton AC
  • Extreme Cold Weather Models Perform Down to -40°F Out of the Box
  • Install as Close at 18in from Building
  • Whisper Quiet Operation - Less than 65dB
  • Remote Monitoring & Operation with Smartphone App
  • Intelligent Load Management (kit sold separately)
  • Flexible Exercise Modes Keep Your Generator Running Longer
  • RS20ACE and RS20AC Include 200-Amp Service Entrance Rated Automatic Transfer Switch

Power Through Any Outage

Get uninterrupted power for your entire house with the Cummins Quiet Connect 20kW home standby generator. It connects to your home's power system through an automatic transfer switch (included with RS20ACE and RS20AC) and monitors the power company distribution lines 24/7. It automatically starts when it detects an outage and continues to run until power is restored. So you can trust that your lights stay on, your appliances keep running, and your family stays comfortable during any outage.

Cummins Quiet Connect Home standby Generator

Easy Installation, Automatic Backup

The Cummins Quiet Connect home standby generator connects directly to your home through its existing natural gas or propane supply and an automatic transfer switch. The RA Series 200-Amp Automatic Transfer Switch with NEMA 3R is included with the RS20ACE and RS20AC. The transfer switch is rated for indoor and outdoor use and installs between the utility meter and the main circuit breaker panel. Its smart monitoring system keeps an eye on your power supply and instantly activates the generator the moment it detects an outage. Within seconds, your home is seamlessly transitioned to backup power, you'll never notice the disruption.

Start and Run Your Whole House PLUS a 5-Ton Air Conditioner

With its strong motor starting capability, the Cummins 20kW Quiet Connect generator can handle heavy loads with ease. From powering your essential appliances to starting a 5-ton air conditioner. It keeps your household running smoothly, providing clean and stable power to sensitive electronics without fluctuations.

Intelligent Load Management Gets the Most Out of Your Generator

With Intelligent Load Management (kit sold seperately), this generator learns and optimizes its performance. Allowing it to handle up to four central air conditioners or other heavy loads efficiently. By learning and adapting to your home's power needs, it can make the most of your fuel without compromising on performance.

Stay in Control with Remote Monitoring

Stay in control of your power supply from anywhere with advanced remote access features. Use the Cloud Connect Smartphone App to monitor your generator's status, schedule maintenance, and even start or stop the generator remotely. Enjoy peace of mind knowing you have full control over your Cummins Quiet Connect 20kW home standby generator.

Looks Good, Sounds Good

Despite its powerful performance, the Cummins 20kW Quiet Connect generator features a compact design that fits seamlessly into your home's landscape. This generator meets NFPA 37 code for installation just 18-inches from your home. Its sleek and attractive cabinet is unobtrusive and blends into the landscaping. The patented sound technology operates quietly at just 65dB. Making it one of the quietest home standby generators on the market. 

Won't Let You Down in Extreme Cold Weather

The Cummins RS20ACE and RS20AE perform all the way down to -40°F straight out of the box. While the Cummins RS20AC and RS20A perform down to zero degrees. Cold weather accessories can be added to extend the operating temperature well below zero for these models.

cummins home standby generator extreme cold weather

Cummins Lasts Longer with Patented Exercise Cycle

Exercise modes can be set for a time, date, and frequency that suit you. Cummins' patented “Crank-Only” mode reduces wear and tear during the exercise cycle. The engine cranks without starting while the controller performs diagnostics. The Cummins Quiet Connect 20kW home standby generator gets the exercise it needs, while the controller ensures that the generator is operating correctly. This eco-friendly feature saves fuel, reduces wear on the engine, and produces less noise.

Industry Leading Support and Warranty

The Quiet Connect home standby generator is backed by Cummins Power Generation, so you can rely on comprehensive support for maintenance and operation. Plus, with a five-year/2000-hour limited warranty, including travel, labor, and parts coverage, you can trust in the reliability of your new home generator.

Uncompromising backup power for your entire home. That's the Cummins Quiet Connect 20kW Home Standby Generator.

Order Your Cummins Quiet Connect 20kW Home Standby Generator Today.

Have questions on installation? Unsure which Cummins Home Standby Generator is right for you?
We're here and happy to help.
Call to speak with an expert 854-777-0909 or
email us at sales@lakehouseandcottage.com

Product Specifications

Specs RS20ACE RS20AE RS20AC RS20A
Weight 540 Pounds 540 Pounds 540 Pounds 540 Pounds
CARB Compliant Yes Yes Yes Yes
Made in USA Yes Yes Yes Yes
Consumer Warranty 5 Years 5 Years 5 Years 5 Years
Product Style Standby
Generator
Standby
Generator
Standby
Generator
Standby
Generator
Cold Weather
Performance
Down to -40°F Down to -40°F Down to 0°F Down to 0°F
Dimensions
(L x W x H)
34.1 x 36 x 27.3 in 34.1 x 36 x 27.3 in 34.1 x 36 x 27.3 in 34.1 x 36 x 27.3 in
Additional
Model Numbers
RS20ACE,
A065D238
RS20AE,
A062E512
C20N6HC,
A065D231
C20N6H,
A061C601
Voltage 120/240
Single-Phase
120/240
Single-Phase
120/240
Single-Phase
120/240
Single-Phase
Frequency 60 Hertz 60 Hertz 60 Hertz 60 Hertz
Alternator Brush Brush Brush Brush
Auto Voltage Regulation Yes Yes Yes Yes
Rated Watts 20000 Watts 20000 Watts 20000 Watts 20000 Watts
Fuel Type LP/Natural Gas LP/Natural Gas LP/Natural Gas LP/Natural Gas
NG Power Capacity 18000 Watts 18000 Watts 18000 Watts 18000 Watts
LP Power Capacity 20000 Watts 20000 Watts 20000 Watts 20000 Watts
NG Fuel
Consumption
@ 50% Load
205 ft³/hr 205 ft³/hr 205 ft³/hr 205 ft³/hr
NG Fuel
Consumption
@ 100% Load
300 ft³/hr 300 ft³/hr 300 ft³/hr 300 ft³/hr
LP Fuel
Consumption
@ 50% Load
1.9 gallons/hr 1.9 gallons/hr 1.9 gallons/hr 1.9 gallons/hr
LP Fuel
Consumption
@ 100% Load
3.2 gallons/hr 3.2 gallons/hr 3.2 gallons/hr 3.2 gallons/hr
Rated Amps 75 (NG) &
83.3 (LPV) Amps
75 (NG) &
83.3 (LPV) Amps
75 (NG) &
83.3 (LPV) Amps
75 (NG) &
83.3 (LPV) Amps
Decibel Rating
@ 7m
65 65 65 65
Hour Meter Yes Yes Yes Yes
Voltage Meter Yes Yes Yes Yes
Transfer Switch Automatic
(Included)
Automatic
(Not Included)
Automatic
(Included)
Automatic
(Not Included)
Transfer Switch
Amperage
200-Amps - 200-Amps -
Battery Not Included Not Included Not Included Not Included
Enclosure Aluminum Aluminum Aluminum Aluminum
Circuit
Breaker Size
100 Amps 100 Amps 100 Amps 100 Amps
A/C Ton Rating 5-Tons - 5-Tons 5-Tons
Transfer Switch
Style
Service
Disconnect
- - -
ATS Load
Prioritizing
Built-In - - -
ATS Service
Disconnect
Yes - Yes -
Cooling System Air Cooled Air Cooled Air Cooled Air Cooled
UL Listed Yes Yes Yes Yes
Grade Type Emergency Emergency Emergency Emergency
Engine Brand Cummins Onan Cummins Onan Cummins Onan Cummins Onan
Starting System 12v Auto Start 12v Auto Start 12v Auto Start 12v Auto Start
CC 999 CC 999 CC 999 CC 999 CC
Engine RPM 3600 RPM 3600 RPM 3600 RPM 3600 RPM
Low Oil Alert/
Shutdown
Yes Yes Yes Yes

Cummins Quiet Connect RS20 Generators

  • Improved Design & Performance: Enhanced features ensure seamless operation during outages.
  • Extreme Cold Weather Resilience: RS20ACE and RS20AE operate reliably in temperatures as low as -40 °F, for power even in harsh conditions. RS20AC and RS20A perform out of the box down to 0°F. You can add cold weather accessories to equip them for colder temperatures well below zero.
  • Weather Protective Enclosure: Protective Aluminum/Steel sound enclosure built to withstand outdoor elements.
  • Install Close to Home: Can be installed within 18" of a building (NFPA 37) - Always check local building codes before installation.
  • Low Noise Operation: Engineered for quiet operation, with noise levels as low as 65dB @ 7M, minimizing disturbance.

Powerful 999cc Cummins Air-Cooled V-Twin OHV Engine

  • Efficient Fuel Options: Filed-selectable. Runs on either natural gas or LP, providing flexibility and efficiency.
  • Safety Features: Includes low oil pressure shutdown for added safety and engine longevity.
  • Clean Power Output: Delivers power with less than 5% Total Harmonic Distortion (< 5% THD), to safeguard your electronics.

Convenient Features

  • Patented "Crank-Only" Exercise Mode: Allows diagnostics without engine operation, reducing wear and fuel costs.
  • Customizable Exercise Schedule: Users can select time, date, and frequency of exercise for added convenience.
  • Load Management Capability: Maximizes power output by intelligently managing up to 4 electrical loads (Requires Load Management Kit - Sold Separately).
  • Remote Monitoring: Monitor, exercise, and control the generator remotely using the Cummins Connect Cloud from any device.
  • Warranty: Backed by a standard 5-Year / 2,000 Hour Limited Warranty, ensuring peace of mind and reliability.

Requires Cummins Automatic Transfer Switch

  • RS20ACE and RS20AC include 200-Amp Service Entrance Rated Automatic Transfer Switch that installs between main meter & service panel for faster & less costly installation.

Requires a 12-Volt, Group 51R 450 CCA Battery purchased locally.

FAQ

How long can a Cummins Quiet Connect generator run continuously?

The Cummins Quiet Connect home standby generators are designed to provide reliable backup power for your home during outages. The runtime of the generator depends on factors such as fuel type, load demand, and maintenance schedule. With proper maintenance and fuel supply, it can run continuously for extended periods to keep your essential appliances powered.

Where are Cummins home standby generators made?

Cummins home standby generators are proudly designed and built in the United States, and are "Buy America" certified by the U.S. government.

What transfer switch works with the generator I am considering?

Cummins generators work best with the Cummins RA Series ATS. The exact model depends on your circumstances. Contact our Cummins experts by phone 854-777-0909 or email us at sales@lakehouseandcottage.com to determine the best selection.

How do I know I'm picking the right size home standby generator?

Here’s a basic formula to calculate the standby generator size that's right for your home:

  1. First, create a list of everything in your home that would need to be powered by the generator in case of an emergency. This should include anything that requires electricity and isn’t something you would want to go without should you lose power. It’s important to not only consider running wattage, but starting wattage as well—since most appliances will require a few seconds’ worth of extra wattage to get started. We have a list of common appliances and their watt requirements as well as more details on sizing home back up here.
  2. Add together each item’s running watts. When in doubt, better to overestimate wattage requirements since it’s much better to have a little more power available than is needed as opposed to having to adapt to a generator that lacks sufficient power.
  3. Then, to roughly account for starting wattage, add the single-highest starting watts figure to the total.
  4. To ensure a margin of safety—and to account for potential future needs—you should multiply that figure by at least 1.25. The resulting number is the minimum generator capacity you should consider.

You can also speak with one of our experts for help determining your specific your power needs. Contact us by phone 854-777-0909 or email us at sales@lakehouseandcottage.com.

Can the Cummins Quiet Connect generator be installed indoors if I vent the exhaust to the outside? 

No. But it is NFPA 37 approved to be installed within 18" of a building. Always check local building codes before installation.

Who Can install my Cummins home generator?

Cummins home standby generators must be installed by a certified electrician in compliance with all local building codes. Lakehouse & Cottage can arrange for a Cummins authorized installer to take the stress out of the process by handling the details, including proper permitting. Contact us by phone 854-777-0909 or email us at sales@lakehouseandcottage.com to arrange hassle-free installation.

How loud is the Cummins Quiet Connect generator during operation?

 The Cummins Quiet Connect generator is engineered for low noise operation, with sound levels as low as 65dB(A) @ 7 meters. This ensures minimal disturbance to you and your neighbors while the generator is running, allowing for peaceful backup power during outages.

What fuel types can the generator run on?

The Cummins Quiet Connect generator is designed to run on either natural gas or liquid propane (LP) vapor. This provides flexibility in fuel options, allowing homeowners to choose the most convenient and readily available fuel source for their needs. For specific oil recommendations, please check your operator manual as it may vary based on generator.

What's in the home generator extreme weather kit? When do I need it?

Cummins cold weather kits include various component heaters depending on the size of your generator. Most generators do not need these kits, as these kits are designed to ensure generators installed in areas that experience temperatures well below freezing work properly. The kits can be installed before or after generator installation.

How often does the Cummins Quiet Connect generator need maintenance?

Regular maintenance is crucial to ensure the optimal performance and longevity of your Cummins Quiet Connect generator. It's recommended to follow the manufacturer's maintenance schedule outlined in the user manual, which typically includes tasks such as oil and filter changes, spark plug inspection, and battery maintenance. Additionally, it's essential to conduct regular exercise cycles to keep the generator in good working condition. Cummins generators are designed for easy maintenance and include patented features like a "Crank-only" exercise mode to keep your generator running for longer. For help getting your generator serviced, reach out to our customer service team by phone 854-777-0909 or email us at sales@lakehouseandcottage.com.

Can I monitor and control the Cummins Quiet Connect generator remotely?

Yes, the Cummins Quiet Connect generators offer remote monitoring and control capabilities through the Cummins Connect Cloud platform. Use your computer, tablet, or smartphone, to monitor the generator's status, schedule maintenance, and even start or stop the generator remotely for added convenience.

What warranty coverage does the Cummins Quiet Connect generator come with?

The Cummins Quiet Connect generators are backed by a standard 5-Year / 2,000 Hour Limited Warranty, providing coverage for parts and labor. Additionally, certain components such as the automatic transfer switch may have separate warranty terms, so it's essential to review the warranty documentation for complete details.

 Videos and PDFs

 Warranty

The Cummins Quiet Connect generators are backed by a standard 5-Year / 2,000 Hour Limited Warranty, providing coverage for parts and labor. 

Shipping

Processing Times

All orders are typically processed within 1-2 business days.

Product ETA is 5-7 business days.

Please note, we do not process shipments on weekends or public holidays. During high order volumes, there may be a slight delay; please allow extra transit time. If a significant shipping delay occurs, we'll notify you via email you provided.

Refunds and Returns

We are committed to providing a straightforward, hassle-free return process. 

If your product was damaged in shipping, or if you received an incorrect part please contact us so that we can assist you. Do not initiate a return for such orders.

Return Guidelines

Return Initiation

Your return must be initiated with Lakehouse & Cottage first. Please do not return products without initiating the return online first as your returns will not be accepted.

Return Timeline

Eligible part returns can be initiated for up to 30 days from the shipment date. Returns must be received by the return location within 14 days of return initiation.

Return Method

You may return products through mail. 

  • Mail-In Return: You will need to initiate the return online first. Look up your order using your Order Number and email address and identify the product(s) you would like to return. You will be issued a Return Confirmation email as soon as you submit your return request. Include the packing slip with your parts that are being returned. 
Product Condition

Products must be returned in saleable condition — in other words, unused, in the original packaging, and undamaged. Please note, all accepted returns will incur a 15% handling fee.

Products that are Not Eligible for Return
  • Superseded and obsolete products or parts
  • Parts that were not purchased through the Cummins Global Logistics (CGL) vendor base (such as special-order parts sourced directly from Power Gen suppliers, parts with unique customer specifications, etc.)
  • Parts not purchased from Cummins and non-stocking parts
  • Piston pins except as part of piston or cylinder kits
  • Electronics (including but not limited to sensors)
  • Hazardous materials such as paints, sealants, flush kits, lubricants, spray cleaners and other materials
  • Consumable products
  • Software
  • Make-to-Order and Customized items (calibrated fuel pumps, custom specified radiators / alternators / mufflers /adapters / etc.)
  • Belts, service tools, and rebuilt or non-genuine parts
  • Printed circuit boards and other electronic components that were shipped in anti-static packaging which have been opened

Refund Policy

Handling Fees

All accepted parts returns will incur a 15% handling fee.

Return Label

You will be responsible for shipping the return package to the appropriate location. For US returns, we recommend you ship via FedEx to avoid potential delays. If you are returning a product because an incorrect part was shipped, or the product was damaged in shipping please contact us so that we can assist you.

Refund Timeline

Once we have approved the return, a refund will be issued within 7-10 business days.

Lowest Price Guaranteed

Find a Lower Price? We'll Beat it!

No Sales Tax

(Except WI)

Fast & FREE Shipping

Free Shipping across the Lower 48.

Speak with an Expert

Questions? Give us a call today.
854-777-0909
(M-F 9a-5p CST)

Customer Reviews

Based on 5 reviews
80%
(4)
20%
(1)
0%
(0)
0%
(0)
0%
(0)
K
Kristin M.
Solid warranty, great customer service

Lakehouse & Cottage customer service was very knowledgeable and friendly. We've had our generator for about 2.5 years now and it started to have some issues that I wasn't sure were covered by the warranty. Thankfully calling in was quick and pain-free. They got us set up with someone in the area to fix it and now everything is back to how it should be. I'm grateful this didn't turn into a headache as that's exactly what we bought the unit to avoid!

K
Kevin S.

Very Satisfied

C
Charlie Chang
Hasn't let me down yet

Quiet, good size, dependable. Excellent power capacity. 20kW supplies power to my 3,400 sq ft home with three refrigerators and freezers, a 5 ton AC and 3 window units.

M
Mo Ali
Happy with it

Great generator, super quiet, easy to install. No complaints at all.

H
Hayly

A little disappointed that this is louder than advertised