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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 # 1397
  • Shipping Weight 435.0 lbs.
Country of Origin USACountry of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

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
How can we improve our Technical Specifications?

Compliance and Restrictions

  • Hazardous material - Engines



Rated 4.9 out of 5 by 102reviewers.
Rated 5 out of 5 by Excellent Value for the Price Great Service from Metro Electric, Dealer #11271501 August 9, 2015
Rated 5 out of 5 by great product Will built runs greatStarts in 15 sec when electric go out August 9, 2015
Rated 5 out of 5 by Repeat Performance we just had our 2nd Generac (11KW-6438) whole house switch unit installed. Our previous home absolutely required a generator due to our location and lack of consistent and reliable electrical services. we chose Generac then and we made a repeat buy for our newest home. You learn from experience and our experience with Generac is that it "under commits" and over delivers. You just don't think about a generator until you need one. We learned the hard way. Now our system is set up so that we can get in and out of our home: the requirements of our pumps are set and now I don't have to worry about being shut out of the house or worse, coming home to see water in my finished basement. The unit fits nicely against the house and its regularly scheduled "test" period is even quieter than our last one. We are close to neighbors now and no one has even mentioned it . The platform it sets on blends with the landscape. Our Generac delivers power when we need it and reassurance 24/7 regardless. We think the Generac provides for all of our needs and gave us a range of options to fit our house and our wattage. I'm satisfied that once again we made the right decision and storm clouds no longer keep me up at night. Our sales man did not even have to "sell" us--we already knew we would have a Generac again. A wise decision as proven by 2 power interruptions already due to a horrible NW OH summer. July 18, 2015
Rated 5 out of 5 by Great product I had my 11 KW Generac generator installed June 2, 2015. My wife said it's Murphy's law, our power will never go out again. I said it's a good insurance policy. On June 20, we were having a Father’s Day get together. The electricity went off at 10:00 AM and both my boys said, "Did we blow a breaker?" I simply said, "Just wait 15 sec." The Generac 11 KW came to life and we had electricity. The grandkids were ecstatic; they could have the smoothies we were preparing.My neighbor came over to see my Generac and was impressed that it was relatively quiet. He said that he had "generator envy".We got the generator because I have sleep apnea. If the electricity is off during the night I was unable to run my breathing machine. The Genarac makes it possible for me to sleep safely when the power is out.We are so pleased to have your excellent product. June 26, 2015
Rated 5 out of 5 by have a 14kw So far so good, haven't had any power outages but it runs it's 10 test every week. May 22, 2015
Rated 5 out of 5 by Proved itself and now have peace of mind I'm a do-it yourselfer, who with a little final help from a professional, installed my whole house generator. Not a project for the faint on heart or unsure. Very solid product that has within the first 4 months has given my wife peace of mind. Sever storm with high winds knocked some trees on the local substation. Power was restored by the generator within what seemed seconds. Supplied us for almost 3 hours till the grid came back on line. Complete satisfaction! Listening to the gentle thrum of the generator put me back to sleep within minuets as well! Generac has chased the worry of power loss away. May 22, 2015
Rated 5 out of 5 by Peace of Mind at last. Have had this Generator for a few months now and only had to use it once so far for a 25 minute outage and it was terrific to have lights, heat and the frig running. It performs its bi-weekly test without fail and my neighbor doesn't mind the sound so I'm a happy camper. The electrician had some problems with our town inspector a few times but it was finally worked out and all is great. Thanks Generac for a great product and giving me my Peace of Mind. May 22, 2015
Rated 5 out of 5 by Best Investment Ever! They say you can't put a price on peace of mind, and that is very true! We have only had our generator for a few months, but knowing it's there is everything! Every week as the generator goes through it's self check, I feel comforted and secure knowing that it's ready to go if needed. Great investment for our home! May 22, 2015
  • 2015-08-30T20:03:08.507-05:00
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There is a 3/4" NPT on inlet. Adapter supplied.

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