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Magnum MS2812 2800W 12V Pure Sine Wave Inverter Charger 125A

  • Magnum MS2812 2800W 12V Pure Sine Wave Inverter Charger 125A
$1,967.43
$1,967.43 $2,914.70
SKU: IVM22812
MPN: MS2812-L

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Magnum MS2812 2800W 12V Pure Sine Wave Inverter Charger 125A is designed specifically for the most demanding mobile, back-up, and off-grid applications. The MS2812 is powerful, easy-to-use, and best of all, cost effective.

A Power Factor Corrected (PFC) Charger is built into the inverter/chargers. It uses less energy (25-30% less AC current) from a generator than a standard chargers.

Magnum Inverter Charger MS2812 Installation is easy:

1. Simply connect the inverter’s output to your distribution circuits or electrical panel

2. Connect your utility power cable to the inverter’s easy-to-reach terminal block

3. Connect the batteries

4. Switch on the power

MS2812 Inverter Features and Capabilities

Five Stage Charging Capability Bulk, Absorb, Float, Equalize (requires remote), and Battery Saver™
Battery Temperature Compensation
Yes, 15 ft Battery Temp Sensor standard
Overcurrent Protection
Yes, with two overlapping circuits

MS2812 Inverter Specifications:

Input Battery Voltage Range
9 - 17 VDC
Nominal AC Output Voltage
120 VAC ± 5%
Output Frequency and Accuracy
60 Hz ± 0.1 Hz
Continuous Power Output at 25°C
2800 VA
Waveform Pure Sine Wave

Continuous Output at 25°C

 125 ADC
Warranty 3 Years
(5 Years when installed on MMP or MP system)
Operating Temperature -20°C to +60°C (-4°F to +140°F)
Operating Humidity 0 to 95% RH non condensing
Dimensions 13.75" x 12.65" x 8.0"
(34.9 cm x 32.1 cm x 20.3 cm)
Weight 55 lbs (24.9 kg)


Manufacturer part # MS2812

Magnum MS2812 Inverter Details:
PDF Magnum MS2812 Manual
PDF Magnum MS2812 Data Sheet

The Magnum MS2812 inverter charger delivers 2800VA of continuous pure sine wave power at 120VAC from a 12V battery bank, and its built-in 125A power factor corrected charger offers bulk, absorb, float and battery saver stages, plus equalize when a remote is connected. A 15-foot battery temperature sensor is included. See all Magnum inverters.

Magnum MS2812: specifications

Specification MS2812
Continuous AC output current 23 A
Surge power, 5 seconds 3,900 W
Surge power, 30 seconds 3,800 W
Surge power, 5 minutes 3,200 W
Surge power, 30 minutes 3,000 W
Surge current, 1 ms / 100 ms 70 A AC / 40 A AC
Maximum continuous DC input current 373 A
Peak inverter efficiency 90%
Total harmonic distortion Less than 5%
High battery cut-out / cut-in 16.8 / 16.5 VDC
Low battery cut-out / cut-in 9.0 VDC (adjustable) / 12.5 VDC
Transfer time 16 ms
Power draw, search mode Less than 8 W
Power draw, inverting with no load 30 W
Charger AC input range 60 to 140 VAC, 50 to 70 Hz (120 VAC nominal)
Charger AC input current at rated output 18 A AC
Charger efficiency 85%
Charger power factor Greater than 0.95
Transfer relay 30 A AC per input, 60 A AC total
Cooling Variable-speed dual 92 mm brushless DC fans, 0 to 120 cfm
Corrosion protection Conformal-coated circuit boards, powder-coated chassis and top, stainless steel fasteners
Safety listings ETL listed to UL/cUL 458 and CSA C22.2 No. 107.1-01; meets KKK-A-1822E
Non-operating temperature -40°C to +70°C (-40°F to 158°F)
Shipping dimensions 19 x 17 x 13 in (48.3 x 43.2 x 33 cm)
Shipping weight 62 lb (28.1 kg)
Maximum operating altitude 15,000 ft (4,570 m)

How it compares

The MS2812 is the largest 12-volt model in the MS Series. The MS2000 is the smaller 12-volt model, and the MS4448PAE is a 48-volt model with 120/240 VAC split-phase output.

Model MS2812 MS2000 MS4448PAE
Battery voltage 12 V 12 V 48 V
AC output 120 VAC 120 VAC 120/240 VAC split phase
Continuous power 2,800 VA 2,000 VA 4,400 VA
Surge power, 5 seconds 3,900 W 3,300 W 8,500 W
Peak efficiency 90% 90.6% 94%
Charger output 125 A DC 100 A DC 60 A DC
Transfer relay 60 A AC total (2 x 30 A) 30 A AC total 2 legs, 30 A per leg
Unit weight 55 lb 42 lb 55 lb

Works with

Manuals and documents

Questions

Is the MagnaSine the same inverter as the MS2812?

Yes. MagnaSine is the name the manufacturer's MS Series owner's manual uses for the MS Series pure sine wave inverter/chargers. The MS2812 is the 12-volt, 2,800 VA model in that series.

How much AC current does the MS2812 charger draw?

At its full 125 A DC charge rate the charger draws 18 A AC from a 120 VAC source, with a power factor above 0.95. It accepts 60 to 140 VAC at 50 to 70 Hz. When shore or generator power is present, the transfer relay passes up to 30 A per input and 60 A in total.

How large a battery bank does the MS2812 need?

The owner's manual recommends at least 200 Ah for moderate loads (under 1,000 W) and more than 400 Ah for heavy loads (1,000 W and above). At full continuous output the inverter can draw up to 373 A DC from the batteries.

Specifications from the DMX Power (Magnum) MS Series Owner's Manual 64-0007 Rev M and MS-PAE Series Owner's Manual 64-0032 Rev F.

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