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Generac QuietSource Series™ 48 kW Standby Power Generator (Premium-Grade)
Model:
QT04854ANAX
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Recommended Accessories
Expert Recommended Accessories
Selected by Jared, our Expert
Required Accessories
9
These accessories are required to properly setup/install this product.
Optional Accessories
10
Features
Grade
Emergency
Style
Standby (Liquid Cooled)
Run Watts
48,000 Rated Watts
Surge Watts
48,000
Starting Watts
Fuel
LP/Natural Gas
Engine
Generac 5.4L V-8
Generac QuietSource Series™ 48 kW Standby Power Generator (Premium-Grade)
Product Video Disclaimer: "PED is not responsible for any variances from the product in this video and the item you purchase. Please review all product specs prior to purchase."
- Premium-Grade Standby Generator
- High-quality, liquid-cooled standby generator
- Designed for luxury homes and commercial buildings
- Whisper-Test™
- 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
Specifications
QT04854ANAX
Overview
Weight
1516 Pounds
Made in USA
Yes
Consumer Warranty
2 Years
Commercial Warranty
2 Years
Product Style
Standby Generator
Product Length
77 Inches
Product Width
34 Inches
Product Height
45 Inches
UPC
696471613308
Product Specs
Voltage
120/240 Single-Phase
Frequency
60 Hertz
Rated Watts
48000 Watts
Surge Watts
48000 Watts
Fuel Type
LP/Natural Gas
NG Power Capacity
48000 Watts
LP Power Capacity
48000 Watts
NG Fuel Consumption @ 50% Load
392 ft³/hr
NG Fuel Consumption @ 100% Load
756 ft³/hr
LP Fuel Consumption @ 50% Load
4.14 gallons/hr
LP Fuel Consumption @ 100% Load
7.96 gallons/hr
Rated Amps
200 Amps
Decibel Rating @ 7m
Decibel Rating @ 7m
Sound levels are measured in decibels (dB). The lower the decibel rating, the less noise the product makes. As an example, a ticking watch is 20 dB while on the other end of the scale, a lawn mower is around 90 dB.
63 Test (68 Run) dbA
Transfer Switch
Automatic (Not Included)
Battery
Not Included (525 CCA)
Enclosure
Aluminum
Mounting Pad
Concrete (Not Included)
Cooling System
Liquid Cooled
UL Listed
Yes
Grade Type
Emergency
Engine
Engine 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
Reviews
(5)
Generac QuietSource QT04854ANAX Reviews & Ratings
Won't even start
By Patrick J.
FLOSOM, Louisiana
Purchased 04/16/2015 |
Review Posted 06/24/2015
Totally upset that after spending $17-K, my new home backup system has yet to produce the first KW.
The local repairman now has to order a new starter.
Totally not happy with my purchase.
The local repairman now has to order a new starter.
Totally not happy with my purchase.
Patrick J. Does Not Recommend This
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Expert Response
Sorry to hear that you are having problems with your generator.
This is the first we have heard that you have had issues and are hear to help get these problems resolved. Generac does have a great warranty on this generator and also a very large service network and by calling them direct at 888-436-3722 will get the unit up and running as quick as possible.
This is the first we have heard that you have had issues and are hear to help get these problems resolved. Generac does have a great warranty on this generator and also a very large service network and by calling them direct at 888-436-3722 will get the unit up and running as quick as possible.
Jared G.
Generator Expert
Manufacturer Response
We are sorry to learn of the issues that you are currently experiencing with your automatic standby generator. Please know that any applicable warranty coverage can be provided by an independent authorized service provider in your local area. Moreover, if you would like to speak with us directly regarding your unit's current issues, please do not hesitate to contact us at 888-GENERAC (436-3722). We apologize for any frustration that this unfortunate scenario may have caused.
Rating Breakdown
1/5
1/5
1/5
Generac 48KW
By Charles A.
Newport, Washington
Purchased 04/20/2015 |
Review Posted 06/15/2015
I have it installed now. The installation went well. It starts and carries the load as I expected it to. I am pleased.
Charles A. Recommends This
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Manufacturer Response
We are happy to know that your installation went well and that the unit is providing ample power! If you haven't done so already, please be sure to register your unit with Generac Nation by providing the information required via the following link: http://www.generac.com/generac-nation-sign-up?cid=frm-105-aa . Doing so will allow you to initiate your product's warranty coverage and receive future consumer alerts. If you have any questions about the registration process, please do not hesitate to contact us directly at 888-GENERAC (436-3722).
Rating Breakdown
5/5
5/5
4/5
5/5
A big job - but worth it
By Thomas
Montz, Louisiana
Purchased 06/14/2014 |
Review Posted 08/29/2014
I won't go into why I decided to purchase this beast - but I sure am glad I did. I got a great deal from EGD. These big generators are hard to move around - requiring special equipment - so most people will need help and good planning just to get it delivered.
I learned some lessons during this experience. I had a little trouble getting a solid quote for install but once I found a competent installer, I was set. The generator works perfectly (so far) and runs my entire house with ease. A few uninterruptable power supplies on my computers and TV/satellite, and I was totally set. My "outages" now last only 20-30 seconds, and other than a few beeps from the UPS, it won't even interrupt my football game. I am very happy that I went big.
I learned some lessons during this experience. I had a little trouble getting a solid quote for install but once I found a competent installer, I was set. The generator works perfectly (so far) and runs my entire house with ease. A few uninterruptable power supplies on my computers and TV/satellite, and I was totally set. My "outages" now last only 20-30 seconds, and other than a few beeps from the UPS, it won't even interrupt my football game. I am very happy that I went big.
Thomas Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Features, Quiet, Price, I'd Buy It Again
Cons:
Heavy
Still not working - hurricane coming
By Jim
Virginia
Review Posted 07/03/2014
We bought this system and had it installed in our new house in September. It worked during the installation tests and weekly runs through the winter, but this Spring and into the Summer we have had repeated failures. The first time the factory-trained master electrician came to troubleshoot, he got on the phone with the factory and ordered a part. Now three weeks later, they came to install the part and the system still doesn't work. New (different) part now on order. Hurricane bearing down. Not happy.
Jim Does Not Recommend This
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Rating Breakdown
4/5
1/5
3/5
1/5
Pros:
Quiet, Fast
Cons:
Low Quality, Unreliable, Durability
Almost Maintenence Free
By Carl
Garfield, Arkansas
Review Posted 01/24/2013
I installed this 48 KW gen in 2010, along with a 400 AMP ATS. I've never had any trouble with either. I use a dedicated 500 gal LP tank and have had no fuel delivery problems even as low as 18 degrees F. Of course I placed the tank as close to the generator as allowed by local code. The control and annunciation system have been flawless in operation. The first 2 years the system didn't get much use other than the weekly automatic exercise program (1300 rpm).
It is located about 50 feet from the house and I have to walk outside to hear it when its running . . .. it is definitely quiet. I've performed the annual maintenance even though the system only has 88 hours on it as of Dec 2012. You know, serviced battery,changed break-in oil at 30 hours as recommended. I'm using the correct recommended oil viscosity and grade as recommended.
I've replaced the oil and air filters, run the electrical checks and installed it in such a way (full concrete foundation) that left no entrance for "ground hugging critters" to get into the works. Next year will be coolant flush and belt replacement. BTW - I did check the hoses belts and couplings as recommended and so far, no problems. I would not expect to have problems with this few running hours, but having it set dormant is almost as bad has accumulating lots of hours.
The only issue I've had, that is truly minor, in this past December, I found a few hose clamps that leaked. Tightened while running with all the fluids at operating temperature, just to the point of stopping the leak. Over tightening is a no-no. Belts looked good as new and properly tensioned.
Well thats about it, I live in the Arkansas Ozarks in the country / woods and we frequently have power outages of short durations 4-6 hours when trees fall over the lines or we get ice storms. This system has been absolutely everything I ever expected and a bit more - quiet, reliable and easy to maintain.
Carl K
It is located about 50 feet from the house and I have to walk outside to hear it when its running . . .. it is definitely quiet. I've performed the annual maintenance even though the system only has 88 hours on it as of Dec 2012. You know, serviced battery,changed break-in oil at 30 hours as recommended. I'm using the correct recommended oil viscosity and grade as recommended.
I've replaced the oil and air filters, run the electrical checks and installed it in such a way (full concrete foundation) that left no entrance for "ground hugging critters" to get into the works. Next year will be coolant flush and belt replacement. BTW - I did check the hoses belts and couplings as recommended and so far, no problems. I would not expect to have problems with this few running hours, but having it set dormant is almost as bad has accumulating lots of hours.
The only issue I've had, that is truly minor, in this past December, I found a few hose clamps that leaked. Tightened while running with all the fluids at operating temperature, just to the point of stopping the leak. Over tightening is a no-no. Belts looked good as new and properly tensioned.
Well thats about it, I live in the Arkansas Ozarks in the country / woods and we frequently have power outages of short durations 4-6 hours when trees fall over the lines or we get ice storms. This system has been absolutely everything I ever expected and a bit more - quiet, reliable and easy to maintain.
Carl K
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
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Generac QuietSource Series™ 48 kW Standby Power Generator (Premium-Grade)
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