Generac XG04845C Protector Series 48kW 1-phase Generator (SCAQMD Compliant) Features:
Generac XG04845C 48kW 1-Phase Protector Series Generator
The Generac XG04845C 48kW 1-phase generator is a powerful liquid-cooled standby generator designed to provide dependable backup power for large homes, farms, commercial buildings, and light industrial operations. As part of Generac’s Protector® Series, this generator continuously monitors utility power and automatically starts within seconds of an outage, helping ensure critical electrical systems remain operational.
With 48kW of standby power and 120/240-volt single-phase output, the XG04845C is capable of supporting large electrical loads including multiple HVAC systems, refrigeration equipment, lighting circuits, pumps, and other high-demand equipment. This makes it an excellent backup power solution for larger residential properties, agricultural operations, retail locations, and commercial buildings that require reliable standby electricity.
The generator is powered by a Generac 4.5-liter liquid-cooled inline four-cylinder engine, designed for durability and long-term standby operation. Operating at 1,800 RPM, the system is engineered to provide extended run times while minimizing engine wear. Generac’s True Power™ electrical technology delivers less than 5% total harmonic distortion and ±1% digital voltage regulation, producing clean, stable electricity suitable for modern electronics and sensitive appliances.
The generator features Generac’s advanced Power Zone® 410 controller, which provides full system monitoring, diagnostics, and control functions. For durability in outdoor installations, the XG04845C is protected by a corrosion-resistant aluminum enclosure with electro-galvanized baseframe components and a stainless-steel exhaust system. Mobile Link™ connectivity with cellular service and Wi-Fi backup allows users to remotely monitor generator status, receive maintenance alerts, and confirm system readiness from anywhere.
Key Features
• 48kW standby power output designed for large residential and commercial backup power
• 120/240V single-phase electrical output compatible with residential electrical systems
• Generac 4.5-liter liquid-cooled inline 4-cylinder engine designed for long service life
• Power Zone® 410 controller with advanced diagnostics and monitoring capabilities
• True Power™ electrical technology producing clean utility-quality electricity
• Digital voltage regulation with ±1% accuracy for stable electrical output
• Less than 5% total harmonic distortion (THD) safe for electronics and modern appliances
• Electronic governor with isochronous frequency regulation for stable power delivery
• Controller-selectable fuel type for natural gas or liquid propane
• Mobile Link™ connectivity with cellular service and Wi-Fi backup for remote monitoring
• Quiet operation with sound-attenuated enclosure design
• Corrosion-resistant aluminum enclosure with electro-galvanized baseframe
• Stainless steel exhaust system for long-term durability
• 145 mph wind-rated enclosure for severe weather installations
• UL 2200 listed standby generator system
• 5-year / 2,000-hour limited warranty
Frequently Asked Questions
What can a 48kW standby generator power?
A 48kW standby generator can power large homes, farms, and commercial buildings. It can support multiple HVAC systems, refrigeration equipment, lighting systems, pumps, and other high-demand electrical loads during a power outage.
What voltage does the Generac XG04845C produce?
The generator produces 120/240-volt single-phase power, which is compatible with most residential electrical systems and many commercial applications.
What fuel does the generator use?
The XG04845C can operate on natural gas or liquid propane vapor, with the fuel type selected through the generator controller.
Does this generator produce clean power for electronics?
Yes. Generac’s True Power™ technology produces less than 5% total harmonic distortion with ±1% voltage regulation, delivering stable electricity suitable for sensitive electronics and modern appliances.
Can the generator be monitored remotely?
Yes. The generator includes Mobile Link™ remote monitoring, allowing users to check generator status, receive maintenance alerts, and verify system readiness from a smartphone, tablet, or computer.
