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Boatersland Marine > Electrical > Chargers/Inverters > Magnum Chargers/Inverters > Magnum MMS1012G 1000W Inverter 12V W/50A Pfc Charger Gfci
  Magnum MMS1012G 1000W Inverter 12V W/50A Pfc Charger Gfci
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Magnum MMS1012G 1000W Inverter 12V W/50A Pfc Charger Gfci

Item #: MGNMMS1012G




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Magnum MMS1012G Inverter/Charger

The MMS Series Inverter/Charger is a pure sine wave inverter providing a cost effective solution for those with smaller power needs in mobile applications. Versatile, easy-to-use, and lightweight, the MMS Series provides a reliable base for your energy system.

Power Factor Corrected (PFC) Charger: Our PFC charger is built into all of our inverter chargers. It uses less energy from a generator than a standard charger – using 25-30% less AC current than standard chargers.

Safe and reliable: The MMS Series is ETL Listed to the stringent requirements of UL/cUL 458 and CSA C22.2 #107.1-01 for mobile use.

Attractive styling: The modern, hourglass case, paired with the die cast aluminum base combines form with function, creating an attractive unit that uses its base as a heat sink for superior high temperature operation.


  • Standard transfer relay: The standard 20 amp transfer relay will pass AC power through the inverter when using shore or generator power.
  • Low/high battery protection: If your battery voltage reaches below 10 VDC or above 15.5 VDC, the MMS Series will automatically shut down.
  • Versatile mounting: Mount the MMS Series on a shelf, bulkhead, or even upside down.
  • Fan cooled: The MMS Series is fan cooled, enabling the unit to work well in confined spaces. If the inverter does exceed its temperature limits, it will automatically shut down and then restart when it cools down.
  • Current overload protection: The MMS Series will automatically shut down if its output wattage is exceeded or it detects a short in the wiring, saving the unit from costly damage.
  • Convenient switches: The MMS Series comes with an on/off front-mounted switch with an easy-to-read LED indicator.
  • Circuit breaker protection: This model comes with built in input and output circuit breakers for ease of installation.
  • Battery temp sensor: The standard battery temp sensor monitors temperatures from 0 - 50° C.

Inverter Specifications

Input battery voltage  9 to 17 VDC
Nominal AC output voltage 120 VAC ± 5%
Output frequency and accuracy 60 Hz ± 0.1%
Total Harmonic Distortion (THD) < 5%
1 msec surge current (amps AC) 38
100 msec surge current (amps AC) 21
5 sec surge power (real watts) 1750
30 sec surge power (real watts) 1600
5 min surge power (real watts) 1200
30 min surge power (real watts) 1050
Continuous power output at 25° C 1000 VA
Maximum continuous input current 133 ADC
Inverter efficiency (peak) 87%
Transfer time 16 msecs
Search mode (typical) 5 watts
No load (120 VAC output, typical) 19 watts
Waveform Pure Sine Wave

Charger Specifications

Continuous output at 25° C 50 ADC
Charger efficiency 84%
Power factor > 0.95
Input current at rated output (AC amps) 7

General Features and Capabilities

  • Transfer relay capability: 20 AAC (input current for charging and pass through)
  • Battery temperature compensation: Yes, 15 ft Battery Temp Sensor standard
  • Internal cooling: 0 to 59 cfm variable speed
  • Overcurrent protection with two overlapping circuits
  • Overtemperature protection on transformer and MOSFETS
  • On/Off with status indicator front mounted and easily accessible
  • Low battery cutout 10 VDC, adjustable with the ME-RC remote
  • AC output and input Hardwire
  • GFCI Outlet NA Standard, with 3 ft cord
  • Output circuit breaker 15 A switchable NA
  • Input circuit breaker 20 AAC
  • Listings ETL Listed to UL/cUL458, CSA C22.2 #107.1-01, meets KKK-A-1822E standard
  • Operating temperature: -20° C to +60° C (-4° F to 140° F)
  • Nonoperating temperature: -40° C to +70° C (-40° F to 158° F)
  • Operating humidity: 0 to 95% RH non condensing
  • Dimensions (l x w x h): 16.6” x 8.4” x 4.7” (42 cm x 21 cm x 12 cm)
  • Mounting: Shelf (top or bottom up) or bulkhead (vents up)
  • Weight: 23 lb (10.4 kg)
  • Max operating altitude: 15,000’ (4570 m)
  • Construction: ABS plastic top and cast aluminum bottom

Did you Know?

ALL products we sell are factory new and come with the full Manufacturers Warranty!

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Magnum MMS1012G 1000W Inverter 12V W/50A Pfc Charger Gfci - Magnum Chargers/Inverters