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The Generac QuietSource series™ 48 kw standby power generator (277/480v) (premium-grade) is available for purchase today.

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Generac QuietSource Series™ 48 kW Standby Power Generator (277/480V) (Premium-Grade)

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Liquid Cooled Standby Generators
48 kW
Rated Watts
5.4L V-8
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Emergency Standby Power Generator
Designed for commercial buildings with 277/480V service
Runs off natural gas or LP fuel source

Low-speed exercise mode for quieter weekly tests
Exercises at a quiet 63 decibels at 23 feet
Sound level comparable to an idling car

Automotive-Style Engine
Powerful Generac V8 engine
Operates at half the speed of other engines (1800 vs. 3600 RPM)
Runs at a quiet 68 decibels at 23 feet under load

Aluminum Enclosure
Corrosion-resistant material ideal for salty air conditions
Sound attenuated acoustically designed enclosure

Tri-Lingual Digital Nexus™ Controller
Two-Line LCD Display provides service & maintenance intervals

Automatic Shutdown
High coolant temp, low coolant, low oil pressure and overspeed

Transfer Switch (Sold Separately)

Fork Lift or Loading Dock is Required for Delivery

  Model Number:QT04854KNAX
 Manufacturer:Generac QuietSource
 Made in USA:Yes
 Brand:Generac 5.4L V-8
 Consumer Engine Warranty:2 Years
 Commercial Engine Warranty:2 Years
 Engine RPM:1800 RPM
 Low Oil Alert/Shutdown:Yes
Product Specs
 Voltage277/480 Three-Phase
 Frequency:60 Hertz
 Cooling SystemLiquid Cooled
 Fuel TypeLP/Natural Gas
 NG Power Capacity48,000 Watts
 LP Power Capacity48,000 Watts
 NG Consumption (50% Load)392 ft³/hr (BTU: 392,000 BTU/HR)
 NG Consumption (100% Load)756 ft³/hr (BTU: 756,000 BTU/HR)
 LP Consumption (50% Load)4.14 gallons/hr (BTU: 375,705 BTU/HR)
 LP Consumption (100% Load)7.96 gallons/hr (BTU: 722,370 BTU/HR)
 Rated Amps:72 Amps @ 480 Volts (Three Phase)
 Decibel Rating @ 7m:63 Test (68 Run) db(A)
 Mounting PadConcrete (Not Included)
 Transfer Switch:Automatic (Not Included)
 Battery:Not Included (525 CCA - Battery Group 24F)
 UL ListedYes
 Weight:1516 Lbs. (687.66 kilograms)
 Dimensions:77"L x 34"W x 45"H
(195.58 x 86.36 x 114.30 cm)
 Consumer Warranty:2 Years
 Commercial Warranty:2 Years
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  • Requires a loading dock or forklift
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Shop for the Generac QuietSource Series™ 48 kW Standby Power Generator (277/480V) (Premium-Grade) at Electric Generators Direct. Research Generac QuietSource 696471613339 standby liquid-cooled generators online. Find Generac QuietSource QT04854KNAX standby liquid-cooled generators & 48kW Quiet 480V Generator features and specifications. Get the best deal; compare Generac QuietSource QT04854KNAX prices now. Buy the QT04854KNAX direct and save.