Generac Guardian 20kW Air-Cooled Home Standby Generator, 208V 3-Phase — Model 7077
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At a glance
- Standby Power
- 20 kW LP / 17 kW NG
- Voltage/Phase
- 120/208V, 3-Phase (69.4A LP / 59.0A NG, 80A main breaker)
- Fuel
- Natural Gas or LP Gas (field-selectable)
- Engine
- Generac G-Force 1000 Series, 999cc 2-cylinder OHV
- Cooling
- Air-cooled
- Sound Level
- 67 dBA at normal load / 58 dBA in Quiet-Test exercise mode (at 23 ft)
- Connectivity
- Wi-Fi Mobile Link remote monitoring (standard, free)
- Dimensions
- 48 in L x 25 in W x 29 in H
- Weight
- 466 lb (211 kg)
- Warranty
- 5-year limited warranty
Why this generator
- 20 kW of 120/208V 3-phase backup power - purpose-built for small business and light commercial applications
- Purpose-built Generac G-Force 1000 Series 999cc OHV engine engineered for extended run times in extreme conditions
- True Power Technology delivers utility-grade power with less than 5% total harmonic distortion - safe for sensitive electronics
- Free Mobile Link Wi-Fi remote monitoring from any smartphone, tablet, or PC
- Quiet-Test low-speed exercise mode runs at just 58 dBA with reduced fuel consumption
- UL 2200 listed with a 5-year limited warranty and installation as close as 18 inches from the structure
Everything you need to know
Generac Guardian Series 20kW air-cooled home standby generator (model 7077). Runs on natural gas or LP (field-selectable), WiFi-enabled with Mobile Link remote monitoring, aluminum enclosure.
208V 3-phase configuration for light-commercial applications.
Genuine Generac unit from a factory-authorized dealer. Free shipping to the lower 48. Professional installation available in NC & SC.
Frequently asked questions
What fuel does the this generator run on?+
The unit runs on natural gas or LP (propane), selectable at install.
Does the price include installation?+
No — the online price covers the unit shipped free to the lower 48. Professional installation is available in NC & SC on a quote basis; outside that area we'll help you find a qualified local installer.
How fast does it ship?+
Free curbside / liftgate shipping to the contiguous 48 states. Most orders leave the warehouse in 3–5 business days.
What warranty is included?+
5-year limited factory warranty, registered and supported directly through Generac.
Is financing available?+
Yes — 0% APR financing is available on qualifying orders. Ask us for details before checkout.
Free curbside shipping
Liftgate delivery to the lower 48. Most orders leave the warehouse in 3–5 business days.
Install help, no upsell
We size, spec, and connect you with a vetted local installer — or talk your contractor through it for free.
Real Cummins warranty
Full 5-year / 2,000-hour limited warranty — registered and supported through Cummins directly.