2015 Generac MMG320

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Availability
Brochure
Year
2015
Manufacturer
Generac
Model
MMG320

Overview

Description

Generac recognizes environmental responsibility and continues to meet emission regulations with the addition of their Tier III Generator line. The MMG320 generator is powered by the John Deere 6090HF turbocharged diesel engine. Proven power you can trust, while maximizing fuel efficiency and high performance.



The MMG320 diesel generator provides substantial, reliable 3-phase power where and when you need it, in a highly mobile package.

Engine
  • Cooling System: capable of operating at 120°F ambient
  • Electrical System: Controls: Remote start / stop contacts located next to lug box ; Lockable control box door with diagnostics window ; Lockable lug box with safety switch: Trips main breaker when lug door is opened, Disables voltage regulator ; Cable entry guides to the lug box: Restricts access of foreign objects ; Output ground connection lug inside lug box ; 1200A main breaker with shunt trip ; Convenience receptacles with individual breakers (restricted use in high wye mode): (2) 120V 20 Amp GFCI duplex outlets (Nema 5-20R type), (3) 125 / 250V 50 Amp, 3 pole, 4 wire twistlock (Non-Nema 6369) ; Buck Transformer kit – Provides 120V at GFCI outlets when in 277/480V ; Panel mounted rheostat for voltage adjustment - +/- 10% ; (2) 1000 CCA wet cell batteries: Battery disconnect switch, 2A trickle battery charger
  • Engine: John Deere® RG6090HF485 ; turbocharged, diesel engine ; Prime - 384 hp @ 1800 rpm ; Standby - 422 hp @ 1800 rpm ; 6 cylinder ; 9.0 L displacement ; Tier III approved ; Rubber vibration dampers isolate engine/generator from frame ; 60 Hz engine/generator ; Radiator and oil drains plumbed to exterior ; Low coolant shutdown ; In-line engine block heater
  • Fuel Capacity: 459 gal. ; Steel, single wall fuel tank, built into skid of generator set
  • Governor: Electronic isochronous
  • Voltage: Voltage regulation +/- 1% with Marathon SE350 Voltage Regulator
Dimensions
  • Dry Weight: Skid mounted: 8039 lbs (3646 kg) ; Trailer mounted: 10912 lbs (4950 kg)
  • LxWxH: Skid mounted: 156 x 60 x 90 in (3.96 x 1.52 x 2.29 m) ; 230 x 102 x 110 in (5.84 x 2.59 x 2.79 m)
  • Operating Weight: Skid mounted: 11499 lbs (5216 kg) ; Trailer mounted: 14372 lbs (6519 kg)
General Information
  • Air Filter: Disposable air filter - paper element ; Air filter restriction indicator mounted on control panel
  • Alarms: (warnings / shutdowns are date & time stamped) ; Fuel level: warning – 15%; shutdown – 5% ; Overspeed protection: shutdown – 115% ; Oil pressure: warning – 25 psi; shutdown – 20 psi ; Coolant temperature: warning – 220°F; shutdown – 230°F ; Battery voltage: over – 15VDC; under – 11VDC ; Generator over voltage: warning – 110%; shutdown – 111% ; Generator under voltage: warning – 87%; shutdown – 86% ; Generator over frequency: warning – 105%; shutdown – 110% ; Generator under frequency: warning – 95%; shutdown – 90% ; Over current shutdown
  • Control: Microprocessor-based controller: ; Backlit, 128x64 pixel resolution display ; -40°F to 185°F operating temperature range ; Thermostatically controlled LCD heater ; Six LED indicators w/ lamp test: Alarm / Fault (Red), Ready / Manual (Red), Running (Green), Warning (Yellow), Ready / Auto (Green), Supplying Load (Green) ; Push buttons for easy operation: Manual or Auto Start, Engine Start or Stop, Alarm Cancel & Fault Reset, Scrolling Arrows for Diagnostic Information (System kW output display, Line output & frequency display, Engine diagnostic display: Oil pressure/Engine temperature/Fuel level/Battery, System hours: Running hours/kW hours/Time to service)
  • Fuel Consumption: (at prime): 100% - 17.9 gph (67.8 Lph) ; 75% - 13.4 gph (50.7 Lph) ; 50% - 9.0 gph (34.1 Lph)
  • Material: (enclosure) ; Aluminum, sound attenuated enclosure ; UV & fade resistant, high temperature cured, white polyester powder paint ; Insulated and baffled ; 68 dB(A) at 23 feet – prime power
  • Other: CSA certified ; (enclosure): ; Generac Mobile Power decals ; Multi-lingual operating/safety decals ; Fully lockable enclosure including doors and fuel fill ; Stainless steel hinges on doors ; Emergency stop switch located on outside of enclosure ; Central lifting point ; Document holder with operating manual including AC/DC wiring diagrams
  • Output: Link / Reconnect Board: ; - Three phase – 120 / 208V Low Wye ; - Three phase – 277 / 480V High Wye ; 278 kW / 348 kVA – standby, three phase ; 256 kW / 320 kVA – prime, three phase
  • Run Time: 24 hr. – full load
  • Trailer Specifications: 3” lunette ring hitch ; (2) 8000 lb. axles with electric brakes ; 15000 lb. tongue jack with footplate ; ST215/75R17.5 tubeless tires – 16 ply ; Safety chains with spring loaded safety hooks ; Transportation tie downs ; DOT approved tail, side, brake, and directional lights ; Recessed rear lights
  • Warranty: Engine and generator covered under OEM warranty – consult factory for details.

Specs

Engine

Engine Type
John Deere® RG6090HF485 ; turbocharged, diesel engine ; Prime - 384 hp @ 1800 rpm ; Standby - 422 hp @ 1800 rpm ; 6 cylinder ; 9.0 L displacement ; Tier III approved ; Rubber vibration dampers isolate engine/generator from frame ; 60 Hz engine/generator ; Radiator and oil drains plumbed to exterior ; Low coolant shutdown ; In-line engine block heater

Dimensions

Weight
Skid mounted: 8039 lbs (3646 kg) ; Trailer mounted: 10912 lbs (4950 kg)

Other

Fuel Tank Capacity
459 gal. ; Steel, single wall fuel tank, built into skid of generator set
Run Time
24 hr. – full load

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