Generac XG04845ANAC 48kW 120/240V Standby Generator
Ships out in 2-3 Business Days
Have questions? 1-888-321-6765 / info@truesteadsupply.com
Ships out in 2-3 Business Days
Have questions? 1-888-321-6765 / info@truesteadsupply.com
The Generac XG04845ANAC is a 48kW liquid-cooled automatic standby generator designed for backup power applications using 120/240V 1-phase service. This Protector gaseous generator supports natural gas or vapor propane fuel and is listed with a catalyst-equipped CA and MA emissions compliant configuration. This listing also includes the ecobee by Generac Smart Thermostat, which is designed to integrate with Generac home standby generators for in-home energy monitoring and enhanced backup capabilities. With Quiet-Test mode, cellular connectivity, TruePower technology, and corrosion-resistant construction, this generator supports dependable standby power planning when properly sized and professionally installed. It is a strong option for properties that need verified voltage, fuel, emissions, and smart energy monitoring details before purchase.
The XG04845ANAC is built for standby generator projects where 48kW output, 120/240V 1-phase service, and fuel flexibility are key requirements. Final load sizing, fuel setup, voltage requirements, and site conditions should be reviewed by a qualified installer before purchase or installation.
The included ecobee by Generac Smart Thermostat is designed to work with Generac home standby generators for in-home energy monitoring and enhanced backup capability. This adds useful visibility for buyers who want a more connected standby power setup.
Quiet-Test mode runs a lower-speed five-minute self-test that can be programmed weekly, biweekly, or monthly. Cellular connectivity supports Mobile Link monitoring for generator owners and Fleet visibility for supporting generator service teams.
TruePower technology is listed to deliver less than 5% total harmonic distortion for cleaner power quality. The supplied details also note an aluminum enclosure, electro-galvanized steel and aluminum frame components, and a stainless-steel exhaust system for corrosion protection.

The Generac XG04845ANAC is designed for permanent standby generator applications where 48kW output, 120/240V 1-phase service, and catalyst-equipped emissions compliance are required. The included ecobee by Generac Smart Thermostat adds connected energy monitoring support for a more informed backup power setup.
With Quiet-Test mode, cellular connectivity, TruePower technology, and corrosion-resistant construction, this generator supports practical standby power planning and long-term service visibility. Its 120/240V 1-phase configuration should be matched carefully to the property’s electrical requirements before ordering.

Need help confirming the right generator configuration?
Contact TrueStead Supply for generator sizing guidance, voltage selection support, and quote assistance.
✔ Backup power guidance ✔ Voltage support ✔ Quote assistance
Contact Us for a Quote| Brand | Generac |
| Series | Liquid Cooled XG Series |
| Model / SKU | XG04845ANAC |
| Product Type | Liquid-cooled automatic standby generator |
| Generator Type | Protector gaseous generator |
| Rated Power Output | 48kW |
| Fuel Type | Natural gas / vapor propane |
| Voltage | 120/240V |
| Phase | 1-phase |
| Included Smart Thermostat | ecobee by Generac Smart Thermostat |
| Monitoring | Cellular connectivity for Mobile Link and Fleet |
| Power Quality | TruePower technology; less than 5% total harmonic distortion |
| Exercise Mode | Quiet-Test self-test mode |
| Enclosure | Aluminum enclosure with corrosion-resistant frame and stainless-steel exhaust components |
| Emissions Configuration | Catalyst equipped; CA and MA emissions compliant |