Centurion Series by Generac 15,000W Automatic Standby Generator 

by Centurion | Item  #: 35634 | Model #:  6281 |
Centurion Series by Generac 15,000W Automatic Standby Generator
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About this item

  • The #1 selling home standby generator provides back-up power to a home's essential circuits in the event of a power outage
  • Automatic, hands free protection 24/7, providing power within seconds of the power outage
  • Generator runs on liquid propane (LP) or natural gas (NG)


The Centurion Series by Generac 15,000-Watt Automatic Standby Generator features 24/7 Automatic power protection you can trust. It's True Power™ technology protects your sensitive electronics, equipment and appliances, so you can operate the generator with confidence. Monitor your generator's performance with an engine hour display, battery voltage display, and a new Nexus® Controller with user-friendly digital controls. Plus, the removable front panel allows for easy maintenance and serviceability. ​

Through the use of Digital Power Management technology (DPM), the switch has the capability to truly manage two air conditioning loads with no additional hardware. When used in tandem with the Power Management Module (PMM) starter kit, individual PMMs can be used to intelligently manage up to four more additional loads.

The Heavy Duty Generac Contactor is a UL recognized device, designed for years of service. The controller at the generator handles all the timing, sensing, exercising functions, and transfer commands. Smart switches are covered by a five-year limited warranty.

A 200-amp Generac Smart Switch is housed in an aluminum NEMA/UL type 3R enclosure with electrostatically applied powder paint. Switches are designed for use with single phase generators that utilize an Evolution™ Controller. The 200 amp open transition switch is available for service equipment rated configurations.


  • Automatic, hands-free backup power supply for home or business.
  • Kicks in within fifteen seconds of determining power loss. Your life won't miss a beat.
  • Powered by Generac's OHVI® engine designed specifically for generators. Lasts three to four times longer than many competitive engines.
  • Easiest installation and best value on the market – pre-packaged with a pre-wired transfer switch. Includes mounting pad.
  • TruePower™ Technology provides clean, smooth operation of sensitive electronics and appliances.
  • Quiet-Test™ Mode for a weekly self test that's quieter than other brands.
  • The most environmentally friendly generator on the market consumes less fuel and releases fewer emissions.

Assembled Size

50.25"L x 27.27"W x 44.5"H

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Warranty Information

3 Year manufacturer's limited warranty

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