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Generac Protector 20kW RD02025ADAE Diesel Liquid Cooled 1 Phase 120/240V Standby Generator New

Manufacturer: Generac


  • Generac Protector 20kW RD02025ADAE Diesel Liquid Cooled 1 Phase 120/240V Standby Generator New
  • Generac Protector 20kW RD02025ADAE Diesel Liquid Cooled 1 Phase 120/240V Standby Generator New


$ 14,797.00

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This item ships for free. Freight shipments include liftgate at no additional charge.

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Ships (est) end of January

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Generac Protector 20kW RD02025ADAE Diesel Liquid Cooled 1 Phase 120/240V Standby Generator New

Generac Protector 20kW RD02025ADAE Diesel Liquid Cooled 1 Phase 120/240V Standby Generator New

Product Overview

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. 


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.

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authorized dealer

5 year factory warranty


Brand new in box


Ships directly from Generac out of WI


Authorized Generac dealer


Diesel Powered


  • Generac Protector® Series Diesel Standby Generator
  • Designed for residential and light commercial applications
  • Fully Automatic Operation When Paired w/ Generac ATS
  • Generator is only compatible with Generac Auto Transfer Switches
  • Includes Mobile Link™ Wi-Fi / Ethernet Connectivity*
  • Monitor generator status on a smart phone, tablet or PC
  • *Requires internet connection
  • Mitsubishi 2.5L In-Line 4-Cylinder Diesel Engine
  • Fuel efficient design runs at 1800 RPM for long engine life
  • Integrated 33.5-Gallon Double-Wall Base Fuel Tank
  • Provides up to 31 hours of run time @ 1/2 load
  • Two-Line LCD Evolution Controller
  • Easy viewing, monitoring & management of generator functions
  • Quiet-Test™
  • Runs at a lower RPM, is quieter and consumes less fuel
  • Isochronous Electronic Governor Control
  • Precise load response & voltage/frequency regulation (±1%)
  • Corrosion-Resistant Aluminum Enclosure
  • Enhanced durability, ideal for coastal & salt-water environments
  • Sound dampening design limits sound pressure to a low 70dB(A)
  • Code Ready - Compatibility With A Variety Of Environments
  • External Vent & Fill, UL/CUL 142-Listed Double Wall Based Tank
  • UL/CUL 2200-Listed Generator - 5-Year Limited Warranty
  • Please Note - Requires Loading Dock, Forklift or Crane For Delivery


Product Category Generator - Standby
Weight 1528 Pounds
Made in USA Yes
Consumer Warranty 5 Years
Commercial Warranty 5 Years
Product Style Standby Generator
Product Length 81 Inches
Product Width 31 Inches
Product Height 51 Inches
Voltage 120/240 Single-Phase
Frequency 60 Hertz
Rated Watts 20000 Watts
Fuel Type Diesel
Rated Amps 83 Amps
Diesel Fuel Consumption @ 50% Load 1.03 gallons/hr
Tank Size 33.5 Gallons
Run Time @ 50% Load 31 Hours
Fuel Tank Material Metal
Decibel Rating @ 7m 65 Test (70 Run) dbA
Transfer Switch Automatic (Not Included)
Battery Not Included (700 CCA)
Enclosure Aluminum
Circuit Breaker Size 100 Amps
Mounting Pad Concrete (Not Included)
Cooling System Liquid Cooled
UL Listed Yes
Grade Type Emergency
Wi-Fi Remote Monitoring Yes
Engine Brand Mitsubishi
Starting System 12v Auto Start
CC 2500 CC
Consumer Engine Warranty 5 Years
Commercial Engine Warranty 5 Years
Engine RPM 1800 RPM
Low Oil Alert/Shutdown Yes

Package Contents

Generac RD02025ADAE generator



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authorized dealer

This item comes with a 5 year factory warranty.

Manuals & Documentation

Customer Reviews

Customer Reviews

Based on 1 review
the company doesn't cover warranty

I only own had the generac for 5 month when I had a gas leak to only fine out that the company
don't cover it generac some independent contractor and i responsible for paying for it

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