MEAN WELL NTU Series True Sine Wave UPS Inverters
Product Features
The NTU series is an advanced true sine wave DC-AC inverter that integrates a seamless UPS function, making it ideal for systems requiring zero-downtime power transitions.
- UPS Functionality: Integrated AC bypass circuit allows for a 10ms transfer time, ensuring uninterrupted power for critical loads during grid failure.
- True Sine Wave Output: THD < 3%, providing high-quality power suitable for medical equipment, computers, and complex motor loads.
- Configurable Settings: Output voltage (100V-120V or 200V-240V) and frequency (50Hz/60Hz) are easily selectable via front-panel DIP switches.
- Energy Efficiency: Includes a "Power Saving Mode" to drastically reduce battery consumption under light loads.
- Rugged Reliability: Industrial-grade design supporting operating temperatures from -25°C to +70°C.
- Smart Connectivity: Built-in RS-232 communication port for system monitoring and remote control.
Technical Specifications
| Parameter | Specification Detail |
|---|---|
| Waveform | True Sine Wave (THD < 3%) |
| UPS Transfer Time | 10ms (AC by-pass) |
| Input DC Voltage | 12V, 24V, or 48V models |
| Operating Temp. | -25°C to +70°C |
| Efficiency | Up to 93% (varies by model) |
| Safety Standards | IEC 62368-1, UL 62368-1, EAC, AS/NZS 62368.1 |
Series Power Range
| Model | Continuous Power | Peak Power (10s) |
|---|---|---|
| NTU-1200 | 1200W | 1800W |
| NTU-1700 | 1700W | 2550W |
| NTU-2200 | 2200W | 3300W |
| NTU-3200 | 3200W | 4800W |
Applications: Backup power for telecommunications, home healthcare equipment, industrial control cabinets, and off-grid remote sensing stations.
UPS Operation Mode
The NTU series distinguishes itself from standard inverters by its ability to act as a UPS (Uninterruptible Power Supply).
| Scenario | System Behavior |
|---|---|
| Grid Available | AC input passes through the inverter to power the load directly, while keeping the inverter/charger active for battery maintenance. |
| Grid Failure | The unit automatically switches to inverter mode within 10ms, drawing power from the DC battery bank to maintain the AC output. |
Ordering Logic:
1. Select Power Level (1200W-3200W).
2. Choose Battery Voltage (12V/24V/48V).
3. Specify AC Output region (1 = 110V range, 2 = 230V range).
4. Select Socket Type (US, EU, CN, AU, UK, UN, or Terminal Block).
1. Select Power Level (1200W-3200W).
2. Choose Battery Voltage (12V/24V/48V).
3. Specify AC Output region (1 = 110V range, 2 = 230V range).
4. Select Socket Type (US, EU, CN, AU, UK, UN, or Terminal Block).
