GENERAC RG02515ANAX Protector Series 25 kW Standby Generator

Plan the pad around a unit measuring 62.2 x 38.5 x 30.6 inches that weighs 777 lbs. That weight is why most installers set these on a poured pad or a composite mounting pad rather than directly on soil, and why you want rigging or a lift on site for placement, not two people and a hand truck.

Single phase, 120/240 V, rated 25,000 watts with a current range of 104 A. If your building is on a three phase service, this is the wrong unit; you need a three phase Protector model instead.

Size the switch to the generator's output, not the house panel alone. At 120/240 V single phase the RG02515ANAX runs a 104 A current range, so a 100 A class switch is the matching size for a whole-house or service-rated install. The generator ships as the genset only, so the automatic transfer switch, the pad, and the fuel and electrical runs are separate line items on the job.

Either. The RG02515ANAX connects to the building's existing liquid propane or natural gas supply and starts automatically within seconds of a power loss. There is no fuel tank to fill or monitor, which is why these get specified over portable gas units for unattended sites.

It is UL Listed, CSA Certified and ETL Listed. Those three are what an inspector or a spec reviewer on an institutional job will look for on the submittal.

Yes. It comes in a standard aluminum all-weather enclosure that Generac recommends for salt-air, coastal locations because of its corrosion resistance. The frame underneath is steel and the enclosure is grey.

It uses Generac's True Power Technology, holding total harmonic distortion under 5 percent. That is the spec to quote when a tenant or facility has sensitive electronics on the standby circuit.

Quiet-Test runs the weekly self-test at 1800 RPM instead of the 3600 RPM operating speed, so it is quieter, burns less fuel, and puts less wear on the engine and alternator. That matters on multi-family and hospitality properties where a full-speed weekly exercise draws complaints.

Yes. Mobile Link connectivity is standard on the Protector Series, so status can be checked from a phone, tablet or PC anywhere. On the unit itself, the Evolution Controller has a multilingual two-line backlit LCD with an external viewing window, so a tech can read status without opening the enclosure.

The part number is RG02515ANAX, a Generac Protector Series 25 kW unit rated 25/25 kW, 3600 rpm, with the aluminum enclosure. It is made in the United States. Quote the full RG02515ANAX string when ordering; the Protector family has several 25 kW variants that differ by enclosure and controller.