Generac Protector Series 48kW 1-Phase Standby Generator – Model XG04845ANAC

Powerful, efficient, and built for long-term reliability. The Generac Protector Series 48kW Standby Generator with 4.5L liquid-cooled engine is engineered to provide automatic, whole-home or small business backup power. With a 1-phase 120/240V output, this generator is ideal for large residences, estates, and commercial properties that require continuous, dependable electricity.

Equipped with EMS (External Manual Switch) capability, this unit integrates seamlessly with transfer switches and load management systems, ensuring smooth transitions when outages occur. Designed with flexibility in mind, it runs on either natural gas (NG) or liquid propane (LP) for convenient fuel options.

Key Features

• Massive 48kW Power Output – Enough capacity to handle multiple HVAC systems, appliances, and essential equipment simultaneously.

• 4.5L Liquid-Cooled Engine – Runs cooler, lasts longer, and is built for extended operation compared to air-cooled units.

• 120/240V Single-Phase Output – Perfect for residential estates and businesses requiring high-capacity single-phase backup power.

• NG/LP Fuel Flexibility – Operates on readily available natural gas or propane for uninterrupted reliability.

• EMS-Ready (XG04845ANAC Model) – Designed to integrate with load management systems for intelligent, efficient power distribution.

• Automatic Backup Power – Activates instantly with an automatic transfer switch (sold separately), restoring power without manual intervention.

• Aluminum Enclosure – Corrosion-resistant, weatherproof housing protects the generator in any climate.

• Quiet Operation – Sound-attenuated design minimizes noise, making it suitable for residential neighborhoods.

Why Choose Generac?

Generac is the #1 manufacturer of home standby generators and the brand trusted by millions of homeowners, contractors, and businesses across North America. With over 60 years of innovation and experience, Generac delivers more than just backup power—it delivers peace of mind.

• Trusted Industry Leader – Generac is the most recognized and installed standby generator brand in the U.S.

• Unmatched Reliability – Built and tested to perform in the harshest conditions, Generac generators start and run when others can’t.

• Fuel Flexibility – Many models run on natural gas or propane, giving you dependable options when you need them most.

• Advanced Technology – Features like Wi-Fi monitoring, smart load management, and quiet operation set Generac apart.

• American Innovation – Designed and built in the USA, ensuring high standards of quality and durability.

• Proven Protection – From single-family homes to large commercial facilities, Generac powers what matters most.

When you choose Generac, you’re choosing long-term dependability, industry-leading support, and the confidence that your power will always be there when you need it.