2017 Generac Protector 20kW Model #RD02023

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Protector 20kW Model #RD02023



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.
  • 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: 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
  • Fuel Capacity: Total Size - 34/128.7 (gallons/liters) ; Usable Size - 32/121.1
  • Fuel Type: Ultra Low Sulfur Diesel Fuel ; Pump - Mechanical Engine Driven Gear
  • Fuel: ASTM ; Supply Line (mm/in) - 7.94/0.31 (ID) ; Return Line (mm/in) - 7.94/0.31(ID) ; Filtering (microns) 5
  • Governor: Electronic Isochronous, ± 0.25% Steady State Regulation
  • Intake System: Naturally Aspirated
  • Oil Filter: Full flow spin-on cartridge
  • Oil Pump: Gear
  • Pistons: Aluminum
  • Type of Engine: Generac In-line
  • Voltage: Electronic Single Phase, ± 1% Regulation. Features Adjustable Voltage & Gain
  • Water Pump: Pre-lubed, self-seating
  • Alternator: Output Leads 1-Phase - 3 wire ; Output Leads 3-Phase - 6 wire
  • Bore x Stroke: (in/mm) 3.46/88 x 3.70/94
  • Compression Ratio: 21.3:1
  • Cooling System: Pressurized radiator
  • Crankcase: (qt/l) 6.87/6.5
  • Cylinders: (Number of) 4 ; Head Type -Cast Iron OHV
  • Displacement: (Liters) 2.28
  • Electrical System: Battery Charge Alternator - 50 Amp ; Static Battery Charger - 2 Amp ; Recommended Battery Group 27F, 700 CCA ; System Voltage - 12 Volts
  • EPA: Emissions Compliance - Emergency Stationary
  • Fan: Speed - (rpm) 1800 ; Diameter - (in/mm) 18.11/460 ; Mode - Pusher
General Information
  • Generator: Synchronous
  • Rotor: Insulation Class - H
  • Run Time: 31 @ 1/2 Load (hrs)
  • Coupling: Direct, Flexible Disc
  • Injector: Mechanical
  • Bearings: Single Sealed Cartridge
  • Weight: 1380/626 (lb/kg)
  • Dimensions: 81 x 31 x 50/205 x 78 x 128 (LxWxH) (in/cm)



Engine Type
Generac In-line 4-cylinders
2.28 L


81 in. (205 cm)
31 in. (78 cm)
50 in. (128 cm)
1380 lb. (626 kg)


AC Output
20 kW
Run Time
1/2 Load: 31 hours

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