Generac XG02525 Protector Series 25kW 1-phase Generator (CARB Compliant) Features:
Generac XG02525 Protector® Series 25kW 1-Phase Standby Generator
The Generac XG02525 Protector® Series 25kW 1-Phase Standby Generator is a liquid-cooled backup power system designed for larger homes and other applications that require dependable, high-capacity standby power. Delivering a full 25kW on either natural gas or liquid propane, the XG02525 combines Generac's liquid-cooled engine platform with advanced controls, quiet operation, remote monitoring, and excellent motor-starting capability.
The 1-phase XG02525 produces 120/240V single-phase power at up to 104 amps and includes a 125-amp circuit breaker. Its synchronous alternator provides less than 5% total harmonic distortion (THD) and ±1% digital voltage regulation, delivering clean, stable power for today's electronics and microprocessor-controlled equipment, including variable-speed HVAC systems. High motor-starting and surge capacity also helps the generator handle demanding loads such as air conditioners, pumps, and other motor-driven equipment.
At the heart of the XG02525 is a Generac 2.5-liter naturally aspirated inline 4-cylinder engine operating at a low 1,800 RPM during normal operation. The liquid-cooled design is engineered for dependable performance during extended outages, while the electronic governor maintains consistent frequency as electrical loads change. The generator can operate on natural gas or LP vapor, with fuel selection made through the controller rather than requiring a mechanical conversion.
Generac equips the XG Protector Series with its advanced Power Zone® 410 controller and Mobile Link® connectivity. Cellular connectivity with Wi-Fi backup allows owners to remotely check generator status, maintenance alerts, and readiness from a smartphone, tablet, or computer. A corrosion-resistant aluminum enclosure, electro-galvanized baseframe components, stainless-steel exhaust system, single-side maintenance access, and 145 mph wind-speed rating help make the XG02525 a durable choice for long-term outdoor installation.
Key Features
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25kW emergency standby power on natural gas or liquid propane
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120/240V single-phase output
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104 amps at 240V
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125-amp circuit breaker
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Generac 2.5L naturally aspirated inline 4-cylinder engine
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Liquid-cooled engine design
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Low 1,800 RPM operating speed
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Power Zone® 410 digital controller
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NFPA 110 system control capable
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Cellular Mobile Link® connectivity with Wi-Fi backup
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Controller-selectable natural gas or LP vapor operation
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Less than 5% total harmonic distortion (THD)
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±1% digital voltage regulation
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High motor-starting and surge capacity
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Electronic governor with isochronous frequency regulation
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Corrosion-resistant aluminum enclosure
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Electro-galvanized baseframe components
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Stainless-steel exhaust system
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Single-side regular maintenance access
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51 dB(A) at exercise speed at 23 ft.
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59 dB(A) at operating speed/no load at 23 ft.
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145 mph wind-speed rating when properly installed and anchored
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EPA emissions certified
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California and Massachusetts emissions compliant
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UL2200 listed
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5-year/2,000-hour limited warranty
Frequently Asked Questions
How much power does the Generac XG02525 produce?
The Generac XG02525 produces 25kW of emergency standby power on both natural gas and liquid propane. In its 1-phase configuration, it supplies 120/240V power at up to 104 amps, making it a high-capacity option for larger residential backup power applications.
Is the Generac XG02525 a single-phase generator?
Yes. This version of the Generac XG02525 is configured for 120/240V single-phase power and includes a 125A circuit breaker. Generac also offers XG02525 models for configurable three-phase applications, so buyers should verify the electrical configuration before ordering.
Can the Generac XG02525 run on natural gas and propane?
Yes. The XG02525 can operate on either natural gas or liquid propane vapor. Fuel type is selected through the generator controller, providing flexibility based on the fuel available at the installation site.
Is the Generac XG02525 liquid-cooled?
Yes. The XG02525 uses a 2.5-liter liquid-cooled Generac inline 4-cylinder engine. The cooling system uses a 50/50 ethylene glycol coolant mixture, a belt-driven water pump, and two electric fans, with a specified maximum ambient air temperature of 122°F.
Does the Generac XG02525 provide clean power for electronics?
Yes. Generac's True Power™ electrical technology provides less than 5% total harmonic distortion, while digital voltage regulation maintains voltage within ±1%. This provides utility-quality power suitable for sensitive electronics and microprocessor-based appliances, including variable-speed HVAC equipment.
Does the Generac XG02525 have remote monitoring?
Yes. Mobile Link® connectivity is standard on the XG Protector Series. Cellular connectivity with Wi-Fi backup allows owners to monitor operating status, maintenance alerts, and generator readiness remotely from a smartphone, tablet, or computer. An authorized service provider can also be connected to the account for proactive support.
How much fuel does the Generac XG02525 use?
At 50% load, the XG02525 consumes approximately 1.0 gallon of propane per hour or 244 cubic feet of natural gas per hour. At 100% load, consumption increases to approximately 2.1 gallons of propane per hour or 452 cubic feet of natural gas per hour. Actual fuel consumption will vary with generator load and operating conditions.
How loud is the Generac XG02525?
Generac rates the XG02525 at approximately 51 dB(A) at 23 feet during exercise mode and 59 dB(A) at 23 feet while operating at no load. Actual sound levels can vary depending on installation location and surrounding structures.
Ideal Applications
The Generac XG02525 25kW 1-phase generator is an excellent choice for larger homes, luxury residences, properties with multiple HVAC systems, homes with well pumps or other large motor loads, and applications where the durability and extended-duty characteristics of a liquid-cooled standby generator are preferred.
