Generac XG02525 Protector Series 25kW 3-phase Generator (CARB Compliant) Features:
Generac XG02525 Protector® Series 25kW 3-Phase Standby Generator
The Generac XG02525 Protector® Series 25kW 3-Phase Standby Generator is a liquid-cooled backup power solution designed for properties that require dependable three-phase emergency standby power. Delivering a full 25kW on either natural gas or liquid propane, the XG02525 combines Generac's commercial-grade liquid-cooled engine platform with flexible voltage configuration, advanced system controls, remote monitoring, and strong motor-starting capability.
One of the biggest advantages of the 3-phase XG02525 is its configurable voltage design. The generator comes factory configured for 208/120V 3-phase and can be changed by the installer to 240/120V or 480/277V 3-phase using an optional Generac Voltage Configuration Cartridge (VCC). At 25kW, the generator supplies 86 amps at 208/120V, 75 amps at 240/120V, or 37 amps at 480/277V, with the same rated output on either natural gas or propane. This flexibility makes the XG02525 suitable for a wide range of residential, light commercial, and other three-phase standby applications.
The XG02525 is powered by a Generac 2.5-liter naturally aspirated inline 4-cylinder engine operating at a low 1,800 RPM during normal operation. Its liquid-cooled design is built for reliable performance during extended outages, while an electronic governor and ±1% digital voltage regulation help maintain stable output as electrical loads change. Generac's True Power™ technology produces less than 5% total harmonic distortion (THD), providing clean power suitable for sensitive electronics, microprocessor-controlled equipment, and variable-speed HVAC systems.
The XG02525 also incorporates Generac's advanced Power Zone® 410 controller along with standard Mobile Link® cellular connectivity with Wi-Fi backup. Owners can remotely check operating status, maintenance alerts, and generator 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 a 145 mph wind-speed rating provide additional durability for demanding outdoor installations.
Key Features
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25kW emergency standby power on natural gas or liquid propane
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3-phase electrical output
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Factory configured for 208/120V 3-phase
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Configurable for 240/120V or 480/277V with an optional VCC
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86 amps at 208/120V
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75 amps at 240/120V
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37 amps at 480/277V
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Standard molded case switch (MCS)
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Optional field-installable circuit breaker kits
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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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1,800 RPM normal operating speed
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1,200 RPM exercise speed
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Power Zone® 410 digital controller
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NFPA 110 system control capable
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Mobile Link® cellular 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
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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) exercise sound level at 23 feet
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59 dB(A) operating/no-load sound level at 23 feet
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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 3-phase generator produce?
The Generac XG02525 produces 25kW of emergency standby power on both natural gas and liquid propane. Depending on its three-phase voltage configuration, it supplies 86 amps at 208/120V, 75 amps at 240/120V, or 37 amps at 480/277V.
What three-phase voltages are available on the Generac XG02525?
The XG02525 3-phase model is factory configured for 208/120V. An installer can reconfigure it for 240/120V or 480/277V using the appropriate optional Generac Voltage Configuration Cartridge. This allows one generator platform to support several common three-phase electrical systems.
Does the Generac XG02525 3-phase generator include a circuit breaker?
The 3-phase XG02525 comes standard with a molded case switch (MCS) rather than a circuit breaker. Generac offers optional field-installable three-pole circuit breaker kits, including configurations appropriate for the different available three-phase voltages.
Can the Generac XG02525 run on both natural gas and propane?
Yes. The XG02525 can operate on natural gas or liquid propane vapor, and the fuel type is selected through the generator's controller. The generator maintains its 25kW standby rating with either fuel.
Is the Generac XG02525 liquid-cooled?
Yes. The XG02525 uses a 2.5-liter Generac inline 4-cylinder liquid-cooled engine. It operates at 1,800 RPM under normal operation and uses a belt-driven water pump with two electric cooling fans.
Is the Generac XG02525 suitable for sensitive electronic equipment?
Yes. Generac's True Power™ electrical technology delivers less than 5% THD, while digital voltage regulation maintains output within ±1%. This provides utility-quality power suitable for sensitive electronics, microprocessor-controlled equipment, and variable-speed HVAC systems.
Does the Generac XG02525 have remote monitoring?
Yes. Mobile Link® connectivity is standard and uses cellular connectivity with Wi-Fi backup. Owners can remotely monitor generator status, maintenance alerts, and readiness using a smartphone, tablet, or computer. The system can also be connected with an authorized Generac service provider for proactive service support.
How much fuel does the Generac XG02525 use?
At 50% load, the XG02525 uses approximately 1.0 gallon of propane per hour or 244 cubic feet of natural gas per hour. At full rated load, consumption is approximately 2.1 gallons of propane per hour or 452 cubic feet of natural gas per hour. Actual consumption will vary with electrical load and operating conditions.
What is the difference between the Generac XG02525 1-phase and 3-phase generators?
Both versions provide 25kW of standby power, but they are designed for different electrical systems. The 1-phase model provides 120/240V single-phase power and includes a 125A circuit breaker. The 3-phase model supports 208/120V, 240/120V, or 480/277V three-phase power and comes standard with a molded case switch. The correct model depends on the electrical service at the property.
Ideal Applications
The Generac XG02525 25kW 3-phase generator is well suited for properties with three-phase electrical service, including larger residences with specialized electrical systems, shops, offices, small commercial buildings, agricultural facilities, and other applications requiring reliable three-phase standby power.
