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48kW Protector QS

Model #RG048

Starting At

$14,699.00 Where To Buy

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Generac Protector 48kW QS Standby Generator

Automatic Backup Power For Large or Custom Homes
Looking to back up your entire home, or more items than usual? Consider the Protector gaseous automatic backup generator line. These units powers essential appliances and modern technologies during power outages, allowing homeowners and their families to continue living life comfortably and without interruption.

What Makes the Protector Series Such a Great Choice?
Generac's Protector Series offers benefits that competitors can’t match. Installation flexibility and cost reduction. Sophisticated, yet intuitive controls. Quiet operation. Supported by a 24/7/365 customer support team at our corporate headquarters, and a nationwide dealer network of more than 6,000 strong.

The best liquid cooled engine packs more power into a smaller footprint - ideal when space is a premium.  The neutral styling, color and small footprint fits unobtrusively into landscaping. Clean burning, continuous fuel choice of natural gas to LP.

True Power™ Technology
Delivers best-in class power quality with less than 5% total harmonic distortion (THD) for clean, smooth operation of sensitive electronics and appliances.

Evolution™ Controller
A cutting-edge, intuitive control. The Evolution controller features a multilingual, two-line LCD text display with color-coded, backlit buttons. It has received upgrades, including USB flash capability, smart battery charging, voltage adjustment, and backlit membrane pad style buttons.

5-year limited warranty with extended warranty options available
We are proud of our innovative product design, high quality and first-class reliability so we stand behind them with a strong 5, 7 or 10-year limited warranty.

Can Be Installed Just 18" From a Structure
Capability to be installed 18 inches away from a structure, ideal for areas with tight lot lines.  Generac’s is the only manufacturer of standby generators to have 18” offset on most of its residential lineup.

Tough, Durable All-Aluminum Enclosures
Our RhinoCoat™ powder-coated finish helps make corrosion-resistant aluminum perfect for all weather conditions.

Quiet-Test™
All backup generators run a weekly test to ensure the system is running properly. Thanks to Quiet-Test, your Protector Series home generator runs its self-test at a lower, quieter RPM, which can be programmed to run weekly, bi-weekly, or monthly.

Mobile Link™ Remote Monitoring
Mobile Link is the cellular remote monitoring system from Generac that allows you to check your generator’s status from anywhere in the world using your computer, tablet or smartphone.

Additional Features
Improved stub ups and electrical connection access decrease installation costs. All connections are dual conductor rated, and the implementation of quick connects for the control wires, completely eliminates the need for crimping or lugging.
Improved customer connection access, which decreases installation costs.

Generac <strong>Protector 48kW QS </strong>Standby Generator

Home Generator Buyer's Guide

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Rated 5 out of 5 by from Great workmanship We are very pleased with the installation process, the technicians did a great job running the lines and installing the units. Upon startup one of the units needed a new part it is currently being ordered. and we are waiting arrival of the part.
Date published: 2018-12-12
Rated 5 out of 5 by from HIGHLY recommend for best technology at the best pricing! This is the second time I have worked w.Rusty and his crew @ Generac in supplying a generator for my homes. They were professional, timely, cost effective and knew exactly how to provide me the product I needed at the right price. The most recent installation involved multiple buildings on my property and Generac designed a system to handle the load I might need using great technology. I would HIGHLY recommend Generac for your needs.
Date published: 2018-08-23
Rated 5 out of 5 by from Excellent piece of equipment This 48K watt generator replaces a 20K watt Generac. What is most remarkable is that being more than double the capacity it is much more quiet when running! It is only been activated for two days but we are certain this generator is going to work flawlessly during commercial power outages. It has yet to take on a load with commercial power removed but again we are confident this generator is going to perform without any issues and prevent any business disruptions.
Date published: 2018-08-16
Rated 5 out of 5 by from Excellent service for installation Excellent service for installation. Impressive product.
Date published: 2018-07-14
Rated 5 out of 5 by from This product has easy wiring applications Yes very pleased with the operation and function of generator and transfer switches. Thank you very much for your product it speaks well of you. Thank you Steven Lusader
Date published: 2018-06-23
Rated 5 out of 5 by from Quiet and Powerful! I was pleasantly surprised as to how quiet this 48KW unit runs. Enough power to run my entire house (w/ 4 A/C systems). Beats the heck out of the little 15KW unit I had. And it is so quiet!
Date published: 2018-06-11
Rated 5 out of 5 by from Super Quiet in a nice smaller footprint Love my new 48 Kw generator from Generac. It is much smaller than my 20 year old one that I just replaced. half as loud as the old one as well which is awesome. And the new transfer switch boxes are so much smaller than the old ones so now my electrical area looks alot nicer. Not so many big boxes on the side of my house. Looking forward to 15 years of full power when there is a power outage.Thanks Generac.
Date published: 2018-06-08
Rated 5 out of 5 by from Very satisfied Very satisfied with my Generac 48kw. Looks and sounds great! Nice to have the peace of mind knowing it is setting and ready to go if needed.
Date published: 2018-03-05
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48kW-RG048-QS is rated 5.0 out of 5 by 23.
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Protector Series Accessories

Maximize your investment and maintain your Generac home standby generator with a variety of accessories.