Protector Series Diesel Generators


$13,709.00 - $19,949.00

Available in 15kW, 20kW, 30kW, 48kW, 50kW.


  • Two Line LCD Multilingual Digital EvolutionTM Controller (English/Spanish/French/Portuguese) with external viewing window for easy indication of generator status and breaker position.

  • Isochronous electronic governor

  • Sound attenuated aluminum enclosure

  • Smart battery charger

  • UV / Ozone resistant hoses

  • ±1% voltage regulation

  • Integrated base tank options are available with run times over 90 hours without having to refuel*

  • Five year limited warranty

  • UL 2200 / UL142 / ULC S601 Listed

  • Meets code requirements for external vent and fill

Current Stock:


INNOVATIVEDESIGN&PROTOTYPETESTINGarekeycomponentsofGENERAC'S success in “IMPROVING POWER BY DESIGN.” But it doesn't stop there. Total commitment to component testing, reliability testing, environmental testing, destruction and life testing, plus testing to applicable CSA, NEMA, EGSA, and other standards, allows you to choose GENERAC POWER SYSTEMS with the confidence that these systems will provide superior performance.

Standby Power Rating

Model RD015 - 15 kW 60 Hz Model RD020 - 20 kW 60 Hz Model RD030 - 30 kW 60 Hz

Model RD048 - 48 kW 60 Hz (single-phase only) Model RD050 - 50 kW 60 Hz (three-phase only)

*Assembled in the USA using domestic and foreign parts




Meets EPA Emission Regulations CA/MA Emissions Compliant * Time calculated at one-half maximum kW output.

SOLID-STATE,FREQUENCYCOMPENSATEDVOLTAGEREGULATION: This state-of-the-art power maximizing regulation system is standard on all Generac models. It provides optimized FAST RESPONSE to changing load conditions and MAXIMUM MOTOR STARTING CAPABILITY by electronically torque-matching the surge loads to the engine. Digital voltage regulation at ±1%.

SINGLE SOURCE SERVICE RESPONSE from Generac's extensive dealer network provides parts and service know-how for the entire unit, from the engine to the smallest electronic component.

GENERAC TRANSFER SWITCHES: Long life and reliability are synonymous with GENERAC POWER SYSTEMS. One reason for this confidence is that the GENERAC product line includes its own transfer systems and controls for total system compatibility.

TRUE POWERTM ELECTRICAL TECHNOLOGY: Superior harmonics and sine wave form produce less than 5% Total Harmonic Distortion for utility quality power. This allows confident operation of sensitive electronic equipment and micro-chip based appliances, such as variable speed HVAC systems.

Spec Sheet