(800) 282-5359

Commercial Generators

Generac Commercial Generators

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 Protector Series

Generac’s Protector® Series diesel generators raise the bar for commercial 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 pre-configured 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 generator for your backup power needs.

Available: 20-1000kW (Standard and Configured)

Continuous Fuel Choice

Diesel, LP, or natural gas

Nexus Digital Controller

Has two lines, multilingual text, easily shows generator status, run time and history.

Continuous Fuel Choice

For a weekly self test that runs quieter than the competition

High Power Nodes

for large applications

Wireless Remote Monitoring

available for commercial series standby generator. Remote monitoring allows you to continually monitor your generator in real time, and have early diagnosis of potential health issues with your unit.


Liquid cooled engines available

in low and high-speed options.

Aluminum, all-weather enclosure option

provides substantial protection from the elements. Aluminum’s corrosion resistance prolongs the life of your generator. Recommended for salt-air, coastal communities. Sturdy galvanized steel enclosures are coated with a durable powder-coat finish for added weather protection.

Limited 5 Year 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.

Quote Request Form