main product image

Protector Diesel 30kW

Model #RD03022

Starting At

$15,439.00 Where To Buy

Add to My Products

Generac Protector Diesel Series 30 kW Standby Generator

All the conveniences of modern living - heat, central air, refrigeration, communication - are nothing without power. When the power supply is disrupted, our lives and businesses can come to a sudden halt. An automatic standby generator protects you from power failures, restoring power within seconds of an outage, so you can have peace of mind and the power you need.

Generac’s new Protector® Series diesel generators raise the bar for residential and light commercial diesel generators. Building and zoning codes can vary wildly from one region to another. In the past, the only answer was to order expensive, custom-configured solutions. Until now.

Generac’s diesel-powered Protector Series features Code Ready, a set of popular preconfigured options and a range of code-driven accessories, so you can feel confident that your generator will be able to conform to the required local codes. The Protector Series is versatile, adaptable, meets UL requirements, and is an affordable optional standby diesel generator for your backup power needs.

Evolution™ Controller
The next generation of intuitive controllers featuring a multilingual, two-line LCD text display with color-coded, backlit buttons.

Quiet-Test™ mode
All standby generators run a weekly test to ensure the system is running properly. Thanks to Quiet-Test, your Protector Series standby generator runs its self-test at a lower, quieter RPM than standard operation.

Mobile Link™ Connectivity
Comes standard with all Protector Series generators. Mobile Link allows you to monitor the status of your generator from anywhere in the world using a smartphone, tablet or PC. Easily access information, such as the current operating status and the generator’s maintenance schedule. Connect your account to an authorized service dealer for fast, friendly and convenient assistance. With Mobile Link, your generator is taken care of before the next outage.

5 Year Limited Warranty
We are proud of our innovative product design, high quality and first-class reliability so we stand behind them with a strong 5-year limited warranty.

Code Ready
The Protector Series offers compatibility with a variety of environments, with external vent and fill, a UL/CUL 142-listed, double-walled base tank, a UL/CUL 2200-listed generator, and a wide range of code-driven accessories.

Additional Features

  • NEW! Extended tank option. Full load runtime of 2+ days!
  • Ease of installation and service: External viewing window for easy inspection of generator status and breaker position / Removable doors for easy service and fuel fill access
  • Isochronous Governor – electronic governor control for tight and precise load response and voltage (+/- 1%) and frequency regulation
  • Available in single- and three-phase configurations
Generac <strong>Protector Diesel Series 30 kW</strong> Standby Generator

Home Generator Buyer's Guide

Generac values your feedback!

When writing your review, please consider the following guidelines:

  • Prior to providing a review, refer to a product’s documentation to ensure that unit is being used and maintained properly
  • Alluding to issues incurred in the wake of negligent maintenance or improper use will void review submissions
  • Focus on your experience with the product and its features
  • Provide details about why you liked or disliked a product
  • Reviews submitted for products other than those listed will be rejected immediately
  • Any product reviews referencing independent authorized dealers, service providers, or retailers by name will NOT be posted. (Dealer reviews can be provided here)
  • All submitted reviews are subject to the terms set forth in our Terms of Use

We reserve the right not to post your review if it contains any of the following types of content or violates other guidelines:

  • Obscenities, discriminatory language, or other language not suitable for a public forum
  • Advertisements, “spam” content, or references to other products, offers, or websites
  • Email addresses, URLs, phone numbers, product serial numbers, physical addresses or other forms of contact information
  • Critical or spiteful comments on other reviews posted on the page or their authors

If you wish to share feedback with us about product selection, pricing, ordering, delivery, or other customer service issues, please do not submit this feedback through a product review. Instead, contact us directly.

Enjoy writing your review!

Rated 3 out of 5 by from 48 kw generator You did not drain the radiator froze up, had to heat rad to remove your fluid, and put in glycol for my regions cold weather. the oil must come out and filled with oil for this climate, it was most likely mineral oil, has to come out. Otherwise Gen OK. do not like the fact it will not turn over unless coded.. I worked on generators in the mega watts for te last 60 years, so I know what I am doing! I wanted a 100 kw gen. but not available in single phase.
Date published: 2020-12-29
Rated 3 out of 5 by from 30 Amp cord too short I find the provided 10' 30 amp cord too short since GENERAC recommends on their web site using at least 20 ft cord. Safe Extension Cord Use When you’re using your extension cord, make sure it is long enough to keep the open frame generator at least 20 feet away from your home. For emergency power, make sure it’s long enough to keep your generator away from windows and doors so that carbon monoxide does not enter your home.
Date published: 2020-12-23
Rated 5 out of 5 by from Great Product!!! Easy Install, quiet, and reliable. Can't ask for more.
Date published: 2019-07-17
Rated 4 out of 5 by from Quiet and powerful Just had our old generator swapped out for this one. Glad the case is rust-proof. Also more silent when running
Date published: 2019-04-12
Rated 5 out of 5 by from Off to a good start... Having suffered through a multi-year problem with a competitor's product issues, I went searching for a reliable alternative. I was very professionally guided in my search by TSE Power Solutions and chose a 48KVW diesel unit from Generac. The planning and execution of the installation were exceptionally well handled and went as scheduled. Start-up proceeded flawlessly as well and we are now set to go. I am confident this will be a much better, long term solution that will fit our needs.
Date published: 2019-01-31
Rated 5 out of 5 by from No effort peace of mind Installed this during a rebuilt with doing so kept in mind during planning. No other service disconnect needed in my area and re-located my electrical system around it. Not had the chance to have it function as it should, but looking forward to not having to lift a finger for it to do so! Have the same at my Mom's home on a 16KW and most of the time she doesn't know power has switched over.
Date published: 2018-12-28
Rated 4 out of 5 by from Wish it had just a few more features Just installed last week, so it's hard to give a full and accurate rating of this unit. But were in the height of hurricane season so a full review will be forth coming. Last year we had an 11k propane at our old house, no complaints at all. What would be nice for this 20k protector series is the typical scroll through menu that would boost the features rating. I would like to see voltage line to neutral, line to line and amps.
Date published: 2018-09-12
Rated 4 out of 5 by from The Generator was installed 2 days ago The generator looks and functions great. The installation was smooth. My only wish is that it came with a bigger fuel tank. When tested by our electrician the unit performed great.
Date published: 2018-08-27
  • y_2021, m_9, d_25, h_20
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.19
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_8
  • loc_, sid_protector, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_generac
  • bvseo_sdk, net_sdk,
  • CLOUD, getReviews, 0ms
Whole House 200A Utility / 50A Generator Manual Transfer Switch is rated 4.1 out of 5 by 8.
  • y_2021, m_9, d_25, h_20
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.19
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_8
  • loc_, sid_protector, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_generac
  • bvseo_sdk, net_sdk,
  • CLOUD, getAggregateRating, 31ms


Call to Learn More

Call Us at 1-855-899-0055
The best way to find out what generator you need is to request a risk free quote.
Chat Now
Chat With a Customer Service Representative

Request Your Free Quote

*Required Fields

Generac offers a variety of financing options for your home generator system purchase. Click the button below to learn more!

Explore Financing Options

Protector Series Accessories

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