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Magnum MS2012 Pure Sine Wave Inverter/Charger

The Magnum MS2012 is a Reliable, Pure Sine Wave Inverter/Charger from Magnum Energy

Introducing the MS Series Inverter/ Charger from Magnum Energy – a new pure sine wave inverter designed specifically for the most demanding mobile and off grid applications. The MS Series is powerful, easy-to-use, and best of all, cost effective.

Safe and reliable: The MS Series is ETL Listed to the stringent requirements of UL/cUL 458 for mobile use and UL 1741 for off grid installations.

Easy-to-install: Install the MS Series in four easy steps: simply connect the inverter’s output to your distribution circuits or electrical panel, connect your shore power cable (AC) to the inverter’s easy-to-reach terminal block, connect the batteries, and switch on the power.

SKU MS2012
  • You asked and Magnum listened.
  • The Magnum MS2012 Inverter/Charger is loaded with features:
  • Pure sine wave:
  • Power your T.V.s, stereos, plasma screens, and other sensitive electronics without worry. The pure sine wave inverter and power factor corrected charger provide clean, reliable inverter power with low total harmonic distortion (THD) of less than 5%.
  • Choices:
  • The MS Series comes in three power models and 12 and 24 volt configurations, allowing you to choose the model that is right for you.
  • Upgradeable memory:
  • The inverter is designed with Flash programming for easy memory upgrades.
  • Versatile mounting:
  • Mount the MS Series on a shelf, bulkhead, or even upside down.
  • Lightweight:
  • The lightweight aluminum base and cover also provides noise reduction and corrosion resistance.
  • Multiple ports:
  • The MS Series provides multiple ports, including an RS485 communication port for network expansion, and a remote port.
  • Accessible design:
  • The extra large AC access cover with terminal screw block and 360° DC connection terminals with covers make this inverter more accessible when it needs to be.
  • Convenient switches:
  • The MS Series comes with an on/off inverter-mounted switch with an easy-to-read LED indicator.
  • Expanded transfer relay:
  • 50 Amp transfer service is available on all models.
  • Buy with ease:
  • The MS Series is backed by a three-year (36-month) limited warranty.

Accessories and Options*

Remote control: For convenient finger-tip operation, including the new one-knob™ programming.

AGS module: Automatically starts and stops your generator based on temperature or battery voltage.

Magnum MS2012 Inverter/Charger



Inverter Specifications

Input battery voltage

12.6 VDC

Nominal AC output voltage

120 VAC

Output frequency and accuracy

60 Hz ± 0.04%

Total Harmonic Distortion (THD)

< 5%

1 msec surge current (amps AC)


100 msec surge current (amps AC)


5 sec surge power (real watts)


30 sec surge power (real watts)


5 min surge power (real watts)


30 min surge power (real watts)


Continuous power output at 25° C

2000 VA

Rated input battery current

190 ADC

Inverter efficiency


Transfer time

16 msecs

Search Mode (with remote)

.3 ADC

No Load (120 VAC output with remote)



Pure Sine Wave

Charger Specifications

Continuous output at 25° C

100 ADC

Charger efficiency


Power factor


Input current at rated output (AC amps)


General Features and Capabilities

Transfer relay capability

2 legs at 30 A for 120 V/30 A or 240 V/50 A service

Five stage charging capability

Bulk, Absorb, Float, Equalize, and Battery Saver™

Battery temperature compensation

With available temp sensor (battery temp 0 – 50° C)

Remote inverter on/off switch

With available pigtail to connect to dry contact

Internal cooling

0 to 120 cfm variable speed drive using dual 92mm brushless DC fans

Overcurrent protection

Yes, with two overlapping circuits

Overtemperature protection

Yes on transformer, MOSFETS, and battery

Conformal coating on PCB’s for corrosion protection


Powder coated chassis & top for corrosion protection


Stainless steel fasteners for corrosion protection


Dual AC branch rated output breakers

Optional on the MS2012 - AC breakers in 15 or 20 amp ratings

Environmental Specifications

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

Physical Specifications

Dimensions (l x w x h)

13.75” x 12.65” x 8.0” (34.9 cm x 32.1 cm x 20.3 cm)


Shelf (top or bottom up) or bulkhead (vents up)


43 lb (19.5 kg)

Max operating altitude

15,000’ (4570 m)