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Generac XG04845ANAC 48kW 120/240V Standby Generator

by Generac
SKU XG04845ANAC-NG
$26,479.00

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Generac XG04845ANAC – 48kW 120/240V Standby Generator with ecobee

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.

48kW Backup Power for 120/240V 1-Phase Applications

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.

ecobee by Generac Smart Thermostat Integration

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 and Cellular Monitoring

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 and Corrosion-Resistant Design

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.

Generac XG04845ANAC 48kW liquid-cooled standby generator with ecobee for 120 240V 1-phase backup power

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.

Generac XG04845ANAC 48kW 1-phase standby generator with ecobee smart thermostat and CA MA emissions compliance

Generac XG04845ANAC Features & Benefits

  • 48kW standby output: Provides a clear power rating for properly sized 120/240V 1-phase backup applications.
  • 120/240V 1-phase service: Matches projects that require this specific single-phase voltage configuration.
  • Natural gas or vapor propane fuel: Gives buyers fuel flexibility for permanent standby generator planning.
  • ecobee by Generac included: Adds smart thermostat integration for in-home energy monitoring and enhanced backup capability.
  • Quiet-Test mode: Runs a lower-speed five-minute self-test that can be programmed weekly, biweekly, or monthly.
  • Cellular connectivity: Supports Mobile Link and Fleet monitoring for generator owner and service visibility.
  • TruePower technology: Delivers less than 5% total harmonic distortion for clean, stable power quality.
  • Catalyst-equipped configuration: Listed as CA and MA emissions compliant in the supplied product specifications.

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Generac XG04845ANAC Specifications

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

Generac XG04845ANAC Info

Generac XG04845 User Manual

Generac XG04845 Installation Manual

Generac ecobee Smart Thermostat Manual