GENERAC RD02025GDAL Protector Series 20 kW Diesel Standby Generator - 3 Phase 120/208 V, Extended Tank

Yes. The RD02025GDAL is built specifically for 3 phase 120/208 V service, with a current range of 167/84 A. If your building is single phase 120/240, this is the wrong unit - you'd need the single phase version of the Protector diesel line instead.

The unit measures 81 inches long, 31 inches wide and 65 inches high, so plan the concrete pad around that footprint plus your local clearance requirements. It also weighs 1,465 lbs, which is a rigging and pad-thickness consideration, not a two-man set.

It ships as an extended base tank configuration, so the fuel tank is integral to the unit - no separate day tank or remote tank required to get it running. The base tank is listed to UL/CUL 142 and the generator itself is UL/CUL 2200-listed.

It's UL Listed, ETL Listed and CSA Certified, with the generator carrying a UL/CUL 2200 listing and the base tank listed to UL/CUL 142. Those are the listings an AHJ or facility engineer typically asks for on a permanent standby set.

This Protector Series unit runs on diesel, which means fuel is stored on site in the base tank rather than depending on a utility gas line. That matters where a gas supply can be interrupted in the same event that took out power, or where no gas service exists. The trade-off is that you own the fuel: it needs periodic turnover and a fill schedule, where a natural gas set runs indefinitely off the main.

The unit uses an isochronous electronic governor, which holds engine speed (and therefore output frequency) at a constant value regardless of load rather than drooping as load increases. That's what you want ahead of UPS front ends, VFDs, elevators and IT loads that reject a sagging frequency.

Mobile Link connectivity is standard on the Protector Series, so you can check generator status from a phone, tablet or PC from anywhere. For a property manager running several buildings, that's the difference between finding out about a fault on a monthly walk and finding out when it happens. The unit also has a two-line LCD Evolution controller in English, Spanish, French and Portuguese, with an external viewing window so you can read status and breaker position without opening the enclosure.

The enclosure is sound attenuated aluminum, and the frame is aluminum as well. Aluminum is the reason this one holds up in coastal and de-icing-salt environments where a steel enclosure rusts at the seams. Finish is aluminum.

A smart battery charger is built in, so you don't need to source a separate trickle charger to keep the starting battery ready between exercise cycles. The battery itself is a separate consumable.

Order it as Generac RD02025GDAL, Protector Series, rated 20 kW. Country of origin is the United States. It's not flagged under California Prop 65 for chemicals causing birth defects.