The best liquid cooled engine packs more power into a smaller footprint

Ideal when space is a premium.

Generac’s Nexus™ Controller

The most comprehensive available. The dual line, tri-lingual LCD display allows for easy monitoring and management of generator functions.

Clean burning, continuous fuel choice of natural gas to LP.

Quiet-Test™ mode

All standby generators run a weekly test to ensure the system is running properly. Thanks to Quiet-Test, your Guardian Series home standby generator runs its self-test at a lower, quieter RPM than standard operation, and can be programmed to run weekly, bi-weekly, or monthly.

Durable Steel Enclosure

Sturdy galvanneal steel enclosure with a durable powder-coat finish for superior weather protection.

Neutral styling, color and small footprint fits unobtrusively into landscaping.

Powerful low-speed, liquid cooled engine

Engineered to run at only 1800 rpm for a substantially quieter generator, consuming less fuel and giving both the engine and alternator a longer life. Packs more power into a smaller footprint than air-cooled models.

Generac’s Nexus™ Controller

The most comprehensive available. The dual line, tri-lingual LCD display allows for easy monitoring and management of generator functions.

Clean burning, continuous fuel choice of LP or natural gas.

Quiet-Test™ mode

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

Standard aluminum, all-weather enclosure

Provides the ultimate protection from the elements. Aluminum’s corrosion resistance prolongs the life of your generator and is recommended for salt-air, coastal locations.

Neutral styling, color and small footprint fits unobtrusively into landscaping.

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.

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

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.

Higher power nodes

For large applications

Single and three-phase output

In a variety of voltages.

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 galvanneal steel enclosures are coated with a durable powder-coat finish for added weather protection.

Continuous fuel choice of LP or natural gas.

Nexus Digital Controller

Two lines, trilingual text, easily shows generator status, run time and history.

Quiet-Test™ Mode

Thanks to Quiet-Test, your Commercial Series standby generator runs its weekly self-test at a lower RPM.

Wireless remote monitoring

An available option.

Generac Spark-Ignited Engines: Engineered for Standby Power

Applying gaseous fuel to standby power systems takes advanced engineering expertise to ensure reliability and long life. That’s why Generac builds its spark-ignited engines from the block up. Adding the fuel system. Hardening the valves and seats. Adjusting engine timing. This allows Generac engines to last longer, require less maintenance, and perform more reliably in a standby power system than a third-party spark-ignited engine. And each Generac engine meets the required EPA emission standards at the factory.

PowerManager®

Reliable, Accurate, Integrated Controls Generac engineers its generator controls with safety and convenience as top priorities. PowerManager® digital controls let you monitor and control key elements of your generator system with the touch of a button or click of a mouse. In addition, features like constant monitoring capabilities, adjustable parameters and built-in protective alarms combine with seamlessly integrated components for the highest level of reliability

Protection from the Elements

By manufacturing our own generator enclosures, Generac is able to ensure each unit combines the highest level of durability with the latest engineering advancements in noise reduction, weather resistance and streamlined design.

Optimized for Performance

Generac industrial alternators are machine wound, machine inserted, and machine varnished for the ultimate in consistency. Form winding and stack bracing ensures reliable performance. Rotor spin balancing eliminates vibration. And vented rotors contribute to cooler operation, longer life and enhanced efficiency.

Rugged Base Frames

Generac’s heavy-duty base frames ensure accurate alignment between the engine and alternator at all times. Oil and water drain points are situated for easy access. Vibration isolators contribute to smooth operation. And power cable stub-ups are positioned for easy installation.