Generac MMG120 Mobile Generator from Portman Electric
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Mobile Generator - MMG120

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Mobile Generator - MMG120

Newest to the line; MMG 120 generator; is packed with 3-phase power at 133kVA, highly mobile and sized to fit most applications for rental, construction and oil industry.

The new MMG 120 generator boasts a 342 gallon fuel tank with run times of approximate 46 hours providing true around the clock performance at the job site.



  • Sound attenuated aluminum enclosure with white industrial powder coat finish
  • Sturdy steel skid frame and steel trailer assembly
  • Stainless exterior hardware
  • Diamond plate step in front and rear fender
  • Durable industrial powder coat finish


  • Magnum Digital Controller (MDC) - performs the unit monitoring, protection and engine communication functions
  • Voltage regulation within + or - 1%
  • 342 gallon fuel capacity up to 46 hour run time
  • Air cleaner indicator on control panel
  • Low coolant shutdown
  • 2 year - 2,000 hour warranty

Easy To Use

  • Selectable voltage switch
  • Lugs and lug box safety switch plus multiple convenience outlets
  • External emergency stop safety switch
  • External, lockable fuel cap to prevent internal spills
  • Automatic remote start terminals on control panel
  • Flexibility of detachable generator-set from trailer
  • Fuel tank design incorporated into generator-set

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