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45kW Protector

Model #RG045

Starting At

$12,599.00 Where To Buy

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Generac Protector 45kW Standby Generator

Automatic Backup for Large or Custom Homes
Looking to back up your entire home, or more items than usual? Consider the Protector Series 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.

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 45kW </strong>Standby Generator

Home Generator Buyer's Guide

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Rated 5 out of 5 by from This producto has Great features Excellent product silent and easy to use we sid The instalation and it was very friendly too
Date published: 2017-10-14
Rated 5 out of 5 by from Several upgrades Good product. Good price. Good job We have a 45 kw for 10 years. The new one has several up grades.
Date published: 2017-07-29
Rated 4 out of 5 by from Weekly Startup Error It has been great and I have used it five times already. One thing that gave me trouble was that it did not start on its weekly startup and through an error message. After that it did not start on the next power failure until we figured out how to clear the error message. The red light should have been on if it would not start on the next power failure. The light was green! We check the display every week after the weekly startup to make sure there are no error messages.
Date published: 2017-01-25
Rated 5 out of 5 by from This product is the best on the market... To say I was "skeptic" was an understatement but boy was I wrong. I had this generator installed in January of 2015 (after putting it off for over a year). This is the best investment I have made in concerning my home. The product works exactly as advertised, it is quite, and you don't miss a beat when you lose electric. Why I didn't have this installed sooner is beyond me. So glad I did as it has come in handy 5 times since we installed it and it worked perfectly.
Date published: 2016-04-21
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45kW-RG045 is rated 4.8 out of 5 by 4.
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Protector Series Accessories

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