Cummins Inverters

Genuine Cummins inverters, 120W to 5000W, from an authorized Cummins retailer.

How to choose a power inverter

  • Up to about 150 W (plugs into the 12 V socket): phones, laptops, CPAP machines, cameras.
  • 400–750 W: TVs, game consoles, small fridges and slow cookers. Use the battery cables for anything above about 150 W.
  • 1500–2000 W: drip coffee makers, compact microwaves and power tools, one high-draw item at a time.
  • 3000–5000 W: microwave plus coffee maker, fridges, or a full truck-cab or RV setup. You need direct battery wiring, an ANL fuse and a strong battery bank.

Add up the watts you will run at the same time and leave about 20% headroom. Motors can surge to 2–3 times their running watts when they start. Every inverter here is modified sine wave (or doesn't have a published waveform). That works for most chargers, tools, TVs and kitchen appliances, but sensitive medical, audio and variable-speed equipment may need pure sine wave.

Order by 2 PM PT for same-day shipping to all 50 states. Questions? Call 916-235-0009.

Cummins inverter comparison

Model Continuous watts Surge watts AC outlets Sine type
Cummins CMN120S 120 W Omitted 3 Modified
Cummins CMN400 400 W 800 W 2 Modified
Cummins CMN2000W 2000 W 4000 W 4 Modified
Cummins CMN3000W 3000 W 6000 W 4 Modified
Cummins CMN4000W 4000 W 8000 W 4 Modified
Cummins CMN5000W 5000 W 10000 W 4 Modified

Also see PowerDrive inverters and all power inverters.