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The Generac RG02515GNAX is a 25kW liquid-cooled automatic standby generator designed for permanent backup power applications using 120/208V 3-phase service. This Liquid Cooled RG Series model uses a 1.5L engine and supports natural gas or vapor propane fuel. It is listed with a No Catalyst option and is not compliant for California or Massachusetts based on the supplied product data. For CA or MA applications, the supplied product note recommends reviewing RG02224GNAX as an alternative.
The RG02515GNAX is built for standby generator projects where 25kW output, 120/208V 3-phase service, and gaseous fuel support are required. Buyers should review the kW rating, voltage, fuel type, RPM, catalyst requirements, and installation requirements before ordering.
This model uses Generac’s 1.5L liquid-cooled engine platform operating at 3600RPM. This high-speed RG Series configuration is intended for non-CA/MA applications and should be matched to the property’s electrical and fuel requirements.
The RG02515GNAX supports practical ownership features including Mobile Link monitoring, Quiet-Test operation, and TruePower technology. These features help support generator status visibility, scheduled exercise operation, and cleaner power quality for properly connected standby loads.
This RG02515GNAX configuration is listed with no catalyst option and is not compliant for California or Massachusetts. The supplied product data states that 1.5L engine models are emissions compliant for 48 states, U.S. territories, and Canada, but not for CA or MA.
The Generac RG02515GNAX is designed for permanent standby generator applications where 25kW output, 120/208V 3-phase service, and natural gas or vapor propane fuel support are part of the project requirements. This model is intended for non-CA/MA applications due to its no-catalyst configuration.
With Mobile Link monitoring, Quiet-Test operation, TruePower technology, and a liquid-cooled RG Series platform, this generator supports practical standby power planning for properties that require verified fuel, voltage, and installation details before purchase.
Need help choosing the right backup generator for your property?
Contact TrueStead Supply for generator sizing guidance, transfer switch support, and quote assistance.
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Contact Us for a Quote| Brand | Generac |
| Series | Liquid Cooled RG Series |
| Model / SKU | RG02515GNAX |
| Product Type | Liquid-cooled automatic standby generator |
| Rated Power Output | 25kW |
| Fuel Type | Natural gas / vapor propane |
| Voltage | 120/208V |
| Phase | 3-phase |
| Engine | 1.5L engine |
| Engine Speed | 3600RPM |
| Monitoring | Mobile Link support / cellular connectivity |
| Power Quality | TruePower technology; less than 5% total harmonic distortion |
| Exercise Mode | Quiet-Test mode |
| Catalyst Configuration | No Catalyst option |
| Emissions Availability | 48-state compliant; not compliant for CA or MA |
| G3 Kit Requirement | G3 kit G0072150 requires additional harness A0005166075 |
