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Standby Generator, 11 kW, 29 In H


Price: $3,581.00 / each

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  • Item # 21AC90
  • Mfr. Model # 6439
  • UNSPSC # 26111604
  • Catalog Page # 1368
  • Shipping Weight 435.0 lbs.
Country of Origin USACountry of Origin is subject to change.

Technical Specs

  • ItemStandby Generator
  • Engine Cooling MethodAir
  • kW11 LP/10 NG
  • Voltage120/240
  • Height29"
  • Width25"
  • Length48"
  • Enclosure MaterialSteel
  • Fuel TypeNatural Gas
  • Engine BrandGenerac OHVI
  • Engine Size530cc
  • Engine RPM3600
  • Amps @ 120/240V, 1 Phase50
  • NG Consumption @ Half Load102.4
  • LP Consumption @ Half Load42.9
  • Hz60
  • Sound Level dBA63
  • Warranty5 yr.
  • Automatic Volts RegulationYes
  • Battery IncludedNo
  • 12VDC Battery ChargerYes
  • Battery Requirements525 CCA
  • Engine (Block Heater)Yes
  • Fault Indicator LightsYes
  • Fuel NPT Pipe Connection Sz.Varies
  • High Temp. AlarmYes
  • Low Oil Pressure AlarmYes
  • Min. Gas Pressure @ Generator (In WC)11 to 14
  • Over Crank ProtectionYes
  • Phase1
  • Power Factor1
  • Repeat of Exercise Cycle7 Days
  • Run Time Hour MeterYes
  • Main Circuit BreakerYes
  • Over SpeedYes
  • IncludesComposite Mounting Pad, Flexible Fuel Line Connector
  • StandardsUL2200, CSA, NEMA MG1-22, EGSA
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Compliance and Restrictions

  • Hazardous material - Engines



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Rated 4.9 out of 5 by 82reviewers.
Rated 5 out of 5 by Great product! After being out with power for nearly two weeks with Hurricane Sandy, this generator has brought piece of mind. Installation took two days and that was it! January 10, 2015
Rated 5 out of 5 by This product is exactly what I wanted. Your servicemen were courteous and efficient. They were in and out in a few hours and treated us with respect. They were a joy to work with. Thank you very much!Ralph January 6, 2015
Rated 5 out of 5 by Great generator! We put ours in a month after Irene hit the NJ coast in 2011. We lived in a rural area with frequent power outages and we had a well pump. When Sandy hit and knocked our power out for 12 days in very cold weather we were very comfortable.mour 10Kw did the entire first floor well pump, furnace, wood stove blower and master bedroom and bath or a 3,500 sq ft house. We had a 1,000 gallon propane tank for heating, so that generator could go over 30 days. We now live in FL and are going to put another Generac in. December 19, 2014
Rated 5 out of 5 by I like the 11KW generac that we have had just over one year I am very satisfied with our generac generator it has very little noise. and is very reliable . December 16, 2014
Rated 5 out of 5 by Very quiet! We chose tholis model since is is SSSOOO quiet.In "test" mode, I have to go outside to be sure it's running.Even on generating mode, it's not much louder.Vey nice machine. June 17, 2014
Rated 5 out of 5 by Worth its weight in gold! We live in a rural area that loses power a couple of times a year. The last time we lost it for 4 days, with the power coming back on Christmas Eve. When we lose power, we lose more than just lights, heat, we lose water, and sump pump power too. If we are home, we will have power, if we are gone, we don't have to worry about the basement flooding. It blends in with the house, does not stick out like a sore thumb. Love seeing it sit there with the green light on! The generator not only gives us power, it gives us peace of mind too. May 14, 2014
Rated 4 out of 5 by Just had my Generac installed and hope to not have to worry about not having electricity anymore. We have worried for the past 12 years when it rains too hard or the electricity goes out since our sump pump runs almost constantly. Now we can have peace of mind when we are at home or on vacation. May 8, 2014
Rated 5 out of 5 by Wintertime security is the best feature A generous neighbor helped us get through multi-day power outages two winters in a row by loaning us an old, cranky portable generator.We did not have option of finding other shelter because my wife's poor health and dietary restrictions keep her homebound.I took the second outage as a clear sign we needed our own generator. I chose a Generac Guardian and an automatic transfer switch for its simplicity and the ability to power our whole house (not just the boiler, freezer and some lights on extension cords).Although there were no power outages during the past two winters, I still feel the Guardian is best home improvement we've ever made because it gives us the security of knowing we'll get through upcoming winters (and other events).This week's automatic Guardian 12-minute test run prompted me to write this review.-- Ward in rural Massachusetts April 21, 2014
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There is a 3/4" NPT on inlet. Adapter supplied.

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