Model # 6462

Internet #205399650

Generac 16,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch

Discontinued Generac

16,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch

  • Generac for reliable and affordable home back up power solutions.
  • The Generac OHVI engine is purpose-built for extended run times
  • True Power Technology delivers best-in class power quality
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Product Overview

Generac 16,000-Watt Guardian Series provides the automatic backup power you need to protect your home and family during a power outage. Connected to your existing LP or natural gas fuel supply, it kicks in within seconds of determining power loss automatically and runs for as long as necessary until utility power returns. Control your power. Control your life.

  • System includes: 20,000-Watt generator, 200 Amp transfer switch, evolution controller and composite mounting pad; mobile link and 26R battery purchased separately
  • Your guardian series generator might have to get you through days or weeks without utility power, Generac OHVI engine, specifically designed for generator use, provides the reliability to power through the most severe outages
  • Evolution controller is the next generation of intuitive controllers featuring a multilingual, 2-line LCD text display with color-coded, backlit buttons
  • Third-party certified to NFPA standards to be installed as close as 18 in. from the home's exterior wall, provided it is located away from doors, windows and fresh-air intakes and unless otherwise directed by local codes
  • When combined with a pre-wired transfer switch or smart switch, re-engineered connection points and composite mounting pad, the guardian series 16,000-Watt generator is easy to install
  • In areas with low natural gas pressure, the guardian series 16,000-Watt generators can operate on natural gas pressures of only 3.5 in. of water column
  • Our durable powder-coat finish helps make the sturdy, galvanneal steel enclosure perfect for all-weather conditions, it's also able to withstand 150 MPH winds, optional aluminum available, recommended for salt-air locations
  • Switch between natural gas and LP fuel in the field in a few seconds, without the need for any tools
  • True power technology provides best in class power quality with less than 5% total harmonic distortion means clean, smooth operation of your sensitive electronics and appliances
  • Thanks to quiet-test, your guardian series home standby generator runs its weekly self-test at a lower RPM for only five minutes, its quieter than other brands and consumes less fuel, choose your schedule weekly, bi-weekly or monthly
  • Take advantage of Generac mobile link cellular remote monitoring system and check on your generators status using your computer, tablet or smartphone, even when you are away, sold separately
  • Power outages don't always occur during normal working hours, that's why Generac's customer care call center right here in wisconsin provides support any time of day or night, all year long, Generac is standing by 24/7, every minute of every day, to answer your questions
  • 5-years limited warranty
  • Download the "Warranty" document from the info and guide section of this web page; then the follow the instructions to claim your FREE 10 year extended warranty!

Info & Guides

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Name 8,500-Watt Air Cooled Standby Generator with 50 Amp NEMA 3 and 10 Circuit Transfer Switch 16,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch 14,000-Watt Air Cooled Standby Generator with 200 Amp Service Entrance Rated Automatic Transfer Switch and Load Shed Kit Synergy 20,000-Watt Air Cooled Variable Speed Standby Generator with 200 Amp Automatic Transfer Switch
Brand Champion Power Equipment Generac KOHLER Generac
Ratings (104) (387) (10) (24)
Commercial / Residential Residential Residential Residential Residential
Engine Make OEM Branded OEM Branded Kohler OEM Branded
Generator Features Automatic Voltage Regulation,Electric Start,GFCI Outlet(s),Low Oil Shutdown,Overload Protection Hour Meter,Low Oil Shutdown,Overload Protection Hour Meter,Low Oil Shutdown,Overload Protection Auto Idle Control
Continuous Wattage 8500 16000 14000 20000
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Product Depth (in.)
Product Height (in.)
Product Length (in.)
Product Width (in.)


CA (CARB) Compliant
CARB Compliant
Color Family
Commercial / Residential
Continuous Wattage
Engine Displacement (cc)
Engine Make
OEM Branded
Generator Features
Hour Meter,Low Oil Shutdown,Overload Protection
Operational volume (dB)
Product Weight (lb.)
Remote Monitoring
Sold Separately
Response time (sec.)

Warranty / Certifications

Certifications and Listings
1-UL Listed,CSA Listed
Manufacturer Warranty
5 Year Limited

More Products With These Features


Customer Questions & Answers

how much gas would the 16kw burn per hour?

Asked by: Chilling
The gas company installed a larger gas meter, free of charge, and they bill on volume. With the larger meter which has a larger pipe the volume is less and so for my regular billing the gas bill is less. The generator ran for over 13 hours solid during an ice storm with multiple lines and limbs down all over the surrounding gas bill for that month was less than the bill for that same month a year ago without the generator. Loving it.
Answered by: Joe
Date published: 2016-10-31

Will this unit run on propane tanks?

If it does not, can you recommend a unit that does?
Asked by: Bella
YES. This unit will run on either Natural Gas OR Liquid Propane. It is shipped from Generac ready to be connected to Natural Gas BUT is easily switched to Propane. The manual will tell you how to switch it from the one fuel source to the other. On Propane this unit will use about four gallons of fuel per hour at full load. So plan your tank size accordingly. Your Propane fuel supplier should be able to help you in this decision. Don't worry about the weekly exercise cycle as the generator does not transfer power - it merely starts and runs at a low idle to self lubricate. (It also provides an audible proof that it is in proper working order.) It consumes very little during this exercise. Hope this helps.
Answered by: SnowmanXT
Date published: 2016-09-05

how long will it run on 100 gal. of lp gas

LP gas how long run time
Asked by: Steven
Mine ran for 30 hours straight during a recent power outage and used 20 cf.
Answered by: Jose
Date published: 2016-09-25

What size wire is needed to run this generator for 40 ft away from the box

Asked by: Coyotetodd
I took the liberty of scrolling back up to the "Product Overview". To the right of that is a box labeled "Info & Guides". I clicked on the one entitled "Full Product Manual" to look up what the Main Breaker is on the generators output. This would be the breaker mounted behind the door on the right end of the cabinet - as you look at the generator from the front. Yes, I could have done the math but what I was looking for was the breaker. The last Generac 16 KW I installed had a 65 Amp breaker on its "output". This breaker protects the wiring that goes from the generator to the transfer switch. The 16 KW I installed had a 6' whip on it that was to be attached to the house AND inside that whip was #6 THHN STRANDED Copper power conductors. If you ever look, down the side of a wire should be written information about the construction of that wire. The size of the wire, whether it is stranded or solid, copper or aluminum and even what its outer insulation or sheath(s) are built to protect the wire from. If you can't make out what it says, it's repeated over and over its entire length. Just insure that the power is OFF to the wiring you are trying to read. I matched the wiring provided by the manufacturer. Generac used #6 THHN STRANDED COPPER. (If they would have run #4 THHN StrandedCopper then I would have run the larger wire myself just to avoid warranty issues.) I prefer to run a full sized Neutral so I didn't even try to read what they had - I used a #6 THHN Stranded Copper. I ran a #8 THHN Stranded Copper Ground to comply with Table 250-122 of the National Electric Code. Minimum Size Equipment Grounding Conductors for Equipment. Forty Feet is not a problem. There should be 5 to 6 control wires in that whip. They are used in conjunction with the Transfer Switch. They are normally #18 Stranded. Although small in size they carry 240 VAC between N1 & N2 alone. 120 VAC on T1. 12 VDC and the Transfer signal on the remaining control wires. So although small in physical size, they are potentially hazardous. Follow the instructions of your Installation Manual for these particular wires as I have seen both 5 & 6 wires required. Again, Forty Feet should not be a problem. I don't have a great demand for #18 THHN Stranded so I do substitute the larger #14 THHN Stranded Copper in its place. Stay safe by keeping "EVERYTHING" OFF until you have completed your task. Locked out if there's any chance that it may get energized accidentally. Hope this helps.
Answered by: SnowmanXT
Date published: 2016-03-23
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Customer Reviews

16,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch is rated 4.9 out of 5 by 387.
Rated 5 out of 5 by from Prepared and proud of it! We bought a 16kW fully automatic, whole house generator about three years ago. On March 8, 2017 here in Michigan we had a windstorm. Power went out at 2 PM. The Generac started and ran without a hitch until power came back on at 11 PM the same day. I was watching TV in comfort. My kid played on the internet. The sump pump ran just fine as did the furnace, fridge, computer, everything. It doesn't get any better than that. As an aside, I had the battery warming pad installed for those bitter cold days. As long as you are going to cough up the cash to have an expensive generator installed you might as well spend a little more to protect the battery. I highly recommend buying a Generac. Mine proved itself yesterday. All of my neighbors houses were without power but we were nice and cozy. Out of all the products I have ever purchased for the house this Generac has been by far THE best, hands down.
Date published: 2017-03-09
Rated 5 out of 5 by from Love the various options availabe and reliability. Two of my friends have purchased Generac's before me. So I was able to get 1st hand info on both the product and installer. The installer was the best. Knowledgeable, professional and he let us know what was going on at each step. He told us our options and let us decide what we wanted without any sales pressure. While we haven't had an opportunity to see it in action there is no doubt it will work as advertised.
Date published: 2017-06-02
Rated 5 out of 5 by from t Excellent product, and more important - excellent product support. Whenever I called in for help, the product reps were always there to help - knowledgeable and always willing to go the extra mile to ensure I was taken care of. I am using the product in a country with constant electrical outages, and without this excellent product and the great product support I honestly don't know what I would do.
Date published: 2017-06-01
Rated 5 out of 5 by from I would reccomend buying it to anyone. I like the quiet/low noise as it is located inside a manufactured housing community of fifty one homes. we have yet to receive any complaints concerning noise. the generator is set to self test at 2 pm every two weeks. My house is approx. two hundred feet away and I never hear it run. The cover over the machine blends in with its surrounding environment.
Date published: 2017-02-15
Rated 5 out of 5 by from It's all automatic!! Peace of Mind I love that once this is installed everything is automatic. If the power goes out for more than a few seconds the generator takes over until power is restored. It tests itself every week to make sure all is well in case it's needed. Can run on LP or NG easily. Came with 10 year warranty and the free Generac power washer deal was great.
Date published: 2017-06-01
Rated 5 out of 5 by from AS ADVERTISED... To me, that is very high praise. When you buy a product, install it, set it up, and EVERYTHING goes EXACTLY as the representative said it would, that impresses me. I had done my due diligence on the product. It had all the features i wanted. When it all came together so easily, I was truly impressed. Thank you Generac !
Date published: 2017-06-02
Rated 5 out of 5 by from Just in time! I was out of town when we had a power outage last winter and I thank God that we had just gotten the Generac installed a couple of weeks prior. It was a life saver (mine) for my wife who would have been literally 'in the dark'! It worked like a charm without a hiccup!!
Date published: 2017-06-01
Rated 5 out of 5 by from Excellent system I Decided to get a home generator because we loose power at least once a month in the summer months and less often in the winter. So far the system has powered the house 4 times since the installation. Highly recommend the system.
Date published: 2017-06-16
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