• Rated Power: 400 W (Continuous), 800 W (Surge Peak)
• Output Voltage: 230 VAC (200 / 220 / 230 / 240 VAC selectable via DIP S.W)
• Output Frequency: 50 Hz / 60 Hz (selectable via DIP S.W)
• Waveform: True Sine Wave (THD < 3%)
• Input Voltage: 24 VDC (20 – 33 VDC)
• Efficiency: Up to 91%
• No-Load Power Dissipation: ≤ 1.5 W in power saving mode
• Operating Temperature: −20 °C to +70 °C
• Cooling: 250 W convection, 400 W forced air
• Protections (Input): Reverse polarity, DC low alarm, DC low shutdown, over voltage, battery over discharge
• Protections (Output): Short circuit, overload, over temperature
• Isolation Voltage: 3000 VAC (Input to Output), 1500 VAC (Output to FG)
• Interfaces & Control: Remote ON-OFF control, Tx/Rx communication interface for monitoring
• Dimensions (L x W x H): 186 mm x 100.5 mm x 34 mm
• Weight: approx. 750 g
• Safety & EMC Standards: CB IEC62368-1, CSA/UL 62368-1, E13, EAC, CE, UKCA
• LED Indicators: Status indicators for system, DC input, and load level
• Manufacturer Warranty: 3 Years

Information about the MEAN WELL NTS-400P-224

The MEAN WELL NTS-400P-224 is an ultra-compact, open-frame 24V DC-AC built-in power inverter engineered to generate high-quality True Sine Wave power (THD < 3%) for precision electronics. Driven by an advanced digital MCU controller and protected by a durable conformal coating, it achieves an impressive high peak efficiency of up to 91%. The PCB module delivers 250 W under natural convection and up to 400 W continuous output with forced air cooling, backed by an outstanding surge peak power of up to 800 W to absorb strong initial startup currents from complex equipment.

Designed for embedded system integration, it incorporates a Tx/Rx UART communication port that allows operators to monitor status parameters in real time. To protect battery health, the module maintains an ultra-low standby power dissipation under 1.5 W in energy-saving mode when connected to 24V lead-acid or lithium-ion battery banks. With hardware DIP switches for quick output voltage and frequency customization, a wide operating temperature range of -20 °C to +70 °C, and built-in remote ON-OFF functionality, this module is an excellent power solution for mobile medical carts, commercial buses, wireless networks, and remote industrial equipment.