MEAN WELL TS-400-224B – 400W True Sine Wave DC-AC Power Inverter

*Please read full description prior to purchase*

**eBay policy restricts the display of phone numbers in the listing**

visit our page Gearheadsurpluscom!!

SELLING "AS IS - WHERE IS" AS DESCRIBED

** see all pictures**

MEAN WELL TS-400-224B – 400W True Sine Wave DC-AC Power Inverter (24V DC Input → 230V AC Output)

High-quality pure sine wave inverter from MEAN WELL’s trusted TS-400 series. Converts 24V DC (21–30V range) battery power into clean 230V AC electricity suitable for sensitive electronics and motor loads.

Key Specifications

• Continuous power: 400W
• Peak / surge power: Up to 800W (30 cycles); 600W for 10 sec; 460W for 180 sec
• Input: 21–30 VDC (nominal 24V), ~20A typical
• Output: 230V AC (selectable 200/220/230/240V), 50/60 Hz selectable
• Waveform: True sine wave, THD < 3%
• Efficiency: ~87.5% typical
• Dimensions: 205 × 158 × 67 mm
• Weight: Approx. 1.7–1.73 kg
• Operating temp: –10°C to +40°C at full load (up to +60°C at 50% load)
• Protections: Battery low alarm & shutdown, reverse polarity, over-voltage, overload, short-circuit, over-temperature
• Other features: Thermostatically controlled cooling fan, front-panel status indicators, power ON/OFF switch, remote ON/OFF capability, advanced microprocessor control

Ideal Applications

Home appliances, power tools, office/portable equipment, vehicles, RVs, boats/yachts, off-grid or backup power where clean AC is required.

• Genuine MEAN WELL quality – Reliable industrial-grade brand known for durability and consistent performance.
• True pure sine wave – Safe for sensitive electronics (laptops, TVs, medical devices, audio gear, variable-speed motors) unlike cheaper modified sine wave units.
• Strong surge capability – Handles motor start-up loads (tools, pumps, compressors) with up to 2× rated power.
• High efficiency (~87.5%) – Less heat, longer battery runtime.
• Comprehensive protections – Built-in safeguards protect both the inverter and your battery/equipment.
• Adjustable voltage & frequency – Flexible for different regional or equipment needs.
• Compact & well-built – Solid chassis-mount design with status indicators and remote control option.
• 3-year manufacturer warranty (original MEAN WELL coverage).
• Widely used for vehicles, marine, solar/off-grid, and portable power setups.

Note: This model has been marked obsolete by some distributors; availability is limited. Ideal for buyers seeking a proven, high-quality pure sine wave unit.

Perfect drop-in solution for clean, reliable AC power from a 24V battery system.

Note to buyer:

1. Review all photos carefully as they are part of the description per eBay policy.
2. Items sold as new, tested, and or working may be returned within 30 days of receiving if not satisfied with purchase (restocking fee may apply). Buyer is responsible for return shipping costs.
3. Items that are untested, for parts or repair, or unknown condition are sold as is and are non-returnable.
4. Items are sold as pictured. If it is not shown in the pictures it doesn't come with the item (i.e. power cords, attachments, tooling, etc.)
5. !! Most listings at the end include a GH and then a number for example ( GH119 ) OR ( A19 ) it is a internal stock reference number and not part of the items description Thanks GearheadSurplus !!

Have Questions? 

Use the above Contact Seller link (on the right hand side near the top of this page) which will take you to our Find Answers from Gearhead Surplus page to get our phone number.

Once on the Contact Seller Find Answers page please scroll down and select "contact seller". This will then take you to a page where you can either send us a message or call us. In order to find the contact number look for the "You can also get the seller's phone number" link in the bottom right hand corner. Once clicked, this will show the number to call.

Even though you can get our number this way, when you are using eBay's messaging system do not ask us for our phone number or give us your phone number since this is still against eBay's terms of service. Giving us your phone number via eBay's messaging system can get you/us suspended.