GENERAC RD02025ADAL Protector Series 20 kW Diesel Standby Generator - Single Phase 120/240 V, Extended Tank

Plan the pad around a footprint of 80.8 inches long by 30.5 inches wide, with the unit standing 57 inches tall. It is a heavy set: 1,455 lbs, so the pad and the rigging need to be sized for that, and you will want equipment on site to place it rather than manpower.

Single phase, 120/240 V. Rated current is 167/84 A, so the 120 V figure is 167 A and the 240 V figure is 84 A. Size the automatic transfer switch and feeders off the 240 V single phase output at 84 A, which typically lands you on a 100 A transfer switch and service-rated gear.

Diesel fueled, and it ships on an extended base tank rather than needing a separate day tank. The tank is listed to UL/CUL 142, which is the standard inspectors look for on an aboveground steel fuel tank, and the generator itself is UL/CUL 2200 listed.

UL Listed, CSA Certified and ETL Listed, with the generator specifically UL/CUL 2200 listed and the base fuel tank listed to UL/CUL 142. That combination covers the listings most AHJs ask to see on an outdoor diesel standby set with an integral tank, on both sides of the border.

At 20 kW, single phase 120/240 V, the RD02025ADAL is sized for a large home or a small commercial load such as a office suite, clinic, or retail unit on a single phase service. If your building is fed three phase, this unit will not serve it. Do a load calculation against the 84 A at 240 V rating before you commit.

The enclosure is sound attenuated aluminum, frame and skin both. Aluminum means it will not rust the way a steel enclosure does in coastal or road-salt exposure, which is why it is the common choice for exterior standby installs in multi-family and institutional settings.

Mobile Link connectivity is standard on the Protector Series, so status can be pulled up from a phone, tablet or PC from anywhere. For a property manager running multiple buildings that is the difference between finding out about a fault on the weekly walkthrough and finding out when it happens. The unit also carries a two line multilingual LCD Evolution controller (English, Spanish, French, Portuguese) with an external viewing window, so status and breaker position can be read without opening the enclosure.

No add-ons needed for either. A smart battery charger is built in to keep the starting battery conditioned between exercise cycles, and the engine runs an isochronous electronic governor, which holds frequency flat as load steps on rather than letting speed sag. You still supply the battery, the transfer switch, the fuel and the pad.

Generac RD02025ADAL. That part number is the 20 kW diesel Protector Series set, single phase 120/240 V, with the extended base tank and aluminum enclosure. Generac uses close adjacent numbers across the Protector diesel range for different kW ratings and tank sizes, so quote the full RD02025ADAL string on the PO.

Country of origin is the United States, and it is not flagged as containing chemicals that cause birth defects under California Prop 65. There are no shipping restrictions recorded against it either. Useful if you are filling out a government or institutional procurement package with domestic-origin and disclosure lines on it.