MW1204 400 Watt Portable Modified Sine Wave Inverter


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Coverage Details
Model # 15020712 | Mfg # MW1204 | UPC # 4897038150083

Draw AC power from your boat’s battery bank. Ideal for less sensitive equipment.

For less sensitive AC demands, boaters can take advantage of the lower cost of a modified sine wave inverter. Kisae True modified inverters use an electronically produced waveform to mimic grid supplied AC power from your boat’s battery banks. The result is power with slightly higher harmonic distortion that is compatible with all but the most sensitive electronics and variable speed motors; these sensitive loads can be damaged or have a shortened life using a modified sine wave inverter.

This modified sine wave inverter is easy to use. Two standard three-prong 120V GFCI outlets are built into the front of the inverter for ‘plug and play’ operation.  LED indicators display system status including power and fault. 

Kisae inverters have built in safety features to protect the inverter and the boat’s electrical system. To prevent battery damage, a low-voltage shut-down will turn OFF the inverter if batteries dip to 10.5V; an alarm will sound to provide time to save your work (if on a computer) before AC is cut off. Overvoltage protection shuts down the inverter at 15.5V. In extreme temperatures, the inverter will also shut down to prevent damage.

The 400W continuous rating makes this inverter ideal for boats with minimal AC demands or as a dedicated inverter for a specific AC load. Great for running an entertainment equipment, smaller TVs and smaller monitors. Not recommended for heat generating appliances such as coffee makers, microwaves and refrigerators. The 800W surge capacity will allow spikes caused during start-up of AC loads without blowing a fuse or tripping a breaker.

Continue to enjoy the convenience of using appliances and power tools when you are away from the dock by converting DC battery power to a safe AC power that is compatible with most loads. Install a Kisae Modified Sine inverter and get more out of your house bank batteries.

Key Features

  • Modified sine wave AC inverter ideal for less sensitive AC loads
  • 2 Built in 120V outlets plus one screw terminals to be hardwired into boat’s AC system
  • High start-up surge capability to prevent blown fuses and tripped breakers
  • LED display provides valuable system information
  • Built in low voltage, overload and high-temperature shut-downs
  • Ideal for boats with minimal AC loads or as a dedicated inverter to a specific AC load.
  • Not recommended for use with sensitive electronics and variable speed motors (check with equipment manufacturer for power requirements before selecting a modified sine wave inverter)
  • Dimensions: 6"L x 4"W x 2"H
  • Weight: 1.6 lbs.

Owner’s Manual

Selection Guide


MW1204 400 Watt Portable Modified Sine Wave Inverter

Name Value
ISO Approved cETLus Certified to UL458
CSA C22.2 no. 107.1
Multi Bank Chargers 1 Bank
Output Waveform Modified Sine Wave
Type Inverter
Voltage 100-240 Volts AC
Warranty Details One Year
Wattage 400 Watts Continuous/800 Watts Peak


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