Generac Power Systems MMG120, Specifications

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MMG120 Generac Specifications Continued:
Manufactured by Magnum Power Products LLC., a wholly owned subsidiary of Generac Power Systems, Inc.
Phone: 800-926-9768 Fax: 920-361-2214 www.m-p-llc.com
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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
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Manual or Auto Start
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Engine Start or Stop
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Alarm Cancel & Fault Reset
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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
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Alarm list – 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
ELECTRICAL CONTROLS
 Remote start / stop contacts located next to lug box

Lockable control box door with diagnostics window

Lockable lug box with safety switch
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Trips main breaker when lug door is opened
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Disables voltage regulator
 Cable entry guides to the lug box
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Restricts access of foreign objects

Output ground connection lug inside lug box
 Convenience receptacles with individual breakers (restricted use in high wye mode)
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(2) 120V 20 Amp GFCI duplex outlets (Nema 5-20R type)
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(3) 125 / 250V 50 Amp, 3 pole, 4 wire twistlock (Non-Nema 6369)

Panel mounted rheostat for voltage adjustment - +/- 10%

1000 CCA wet cell battery