Generac Power Systems MMG120 Specifications page 2

MMG120 Generac Specifications Continued:
Six LED indicators w/ lamp test
o
 Push buttons for easy operation
Manual or Auto Start
o
Engine Start or Stop
o
Alarm Cancel & Fault Reset
o
Scrolling Arrows for Diagnostic Information
o
Alarm list – warnings / shutdowns are date & time stamped
o
ELECTRICAL 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
o
Disables voltage regulator
o

Cable entry guides to the lug box
Restricts access of foreign objects
o

Output ground connection lug inside lug box
 Convenience receptacles with individual breakers (restricted use in high wye mode)
(2) 120V 20 Amp GFCI duplex outlets (Nema 5-20R type)
o
(3) 125 / 250V 50 Amp, 3 pole, 4 wire twistlock (Non-Nema 6369)
o

Panel mounted rheostat for voltage adjustment - +/- 10%

1000 CCA wet cell battery
Manufactured by Magnum Power Products LLC., a wholly owned subsidiary of Generac Power Systems, Inc.
 Alarm / Fault (Red)
 Ready / Manual (Red)
 Running (Green)
 Warning (Yellow)
 Ready / Auto (Green)
 Supplying Load (Green)
 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 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
Phone: 800-926-9768 Fax: 920-361-2214 www.m-p-llc.com
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