Product Introduction
The TH110D20NZ-220 is a high-frequency switching rectifier module developed by Tonhe Technology (TONHE) for telecom DC power systems. It takes 220VAC single-phase AC input and delivers a rated output of 110VDC at 20A (2.2kW). Built with full-bridge soft-switching topology and active power factor correction (APFC), the module converts AC power into stable DC power for telecom equipment with high efficiency and reliability. Supporting N+1 redundant parallel operation and hot-swappable installation, it serves as the core power supply component for telecom rooms, base stations, substation DC panels, and other DC power systems.
Technical Specifications
| Parameter | Specification |
| Model | TH110D20NZ-220 |
| AC Input | 220VAC single-phase (187~264VAC), 50Hz ±10% |
| DC Output | 88~150VDC adjustable, rated 110VDC |
| Output Current | 20A (rated) |
| Rated Power | 2.2kW |
| Efficiency | ≥94% |
| Voltage Regulation Accuracy | ≤±0.5% |
| Current Regulation Accuracy | ≤±1% |
| Ripple Coefficient | ≤0.5% |
| Current Sharing Imbalance | ≤±3% |
| Communication Interface | RS485 |
| Cooling Method | Forced air cooling |
| Operating Temperature | -10°C ~ +40°C |
| Dimensions (H×W×D) | 195×85.5×303mm |
| Certifications | CE, ISO9001 |
Product Advantages
1. High Efficiency & Energy Saving: With module efficiency of ≥94%, heat loss is minimized, significantly reducing cooling energy consumption and electricity costs over long-term operation.
2. High-Reliability Redundancy: Supports N+1 redundant parallel operation with current sharing imbalance of ≤±3%. Failure of a single module does not affect system power supply, and the hot-swappable design enables online replacement without power interruption.
3. Precise Output Performance: Voltage regulation accuracy of ≤±0.5% and ripple coefficient of ≤0.5%, with continuously adjustable output from 88~150VDC, meeting both battery boost-charge, float-charge and load supply requirements.
4. Intelligent Monitoring: Standard RS485 communication uploads voltage, current and alarm data in real time and accepts remote control commands, seamlessly integrating with site power & environment monitoring systems for unattended operation.
5. Wide Input Voltage Range: 187~264VAC wide input tolerance ensures stable, uninterrupted output even under grid fluctuations in remote areas.
Application Scenarios
- Telecom rooms and base stations: providing stable 110VDC power for switches, transmission equipment and wireless base stations;
- Utility DC power systems: charging and supply modules for DC operation power panels in substations and power plants;
- DC power supply systems for railway, rail transit, petrochemical and other industries;
- DC panels, backup power systems, and battery banks requiring 110VDC float charging.
Export Case Studies
With over two decades of expertise in power electronics, Tonhe Technology exports its products to more than 30 countries including Germany, the Netherlands, Russia, Poland and Austria. Its telecom power supply modules have obtained international certifications such as CE and entered the European, Southeast Asian and Middle Eastern markets. In 2026, the company exhibited at Middle East Energy (Dubai), Electric & Power Indonesia (Jakarta), and ASEW (Thailand), while achieving significant growth in both sales scale and brand awareness in Europe and East Asia. The TH110D20NZ series rectifier modules have been shipped overseas in volume as part of DC power systems, serving telecom base station projects of Southeast Asian operators and power distribution projects in the Middle East, earning recognition from international customers for high reliability and responsive technical support.
FAQ
1. Does the module support hot-swapping? Yes. Modules can be inserted or removed while the system is live. Combined with N+1 redundant configuration, maintenance does not affect the power supply to loads.
2. Can multiple modules be paralleled for capacity expansion? Yes. The module supports master-less current sharing with imbalance of ≤±3%, allowing flexible system expansion as needed.
3. How does it interface with monitoring systems? A standard RS485 interface with a standard communication protocol is provided, supporting upload of operation data and alarms, as well as remote commands such as voltage adjustment and on/off control.
4. Is the output voltage adjustable? Yes. The output voltage is continuously adjustable within 88~150VDC, allowing flexible setting based on battery bank configuration and float charge voltage requirements.
5. What about warranty and after-sales service? Standard warranty and comprehensive after-sales support are provided, including remote technical guidance and spare parts supply. Packaging and certification documentation can be customized for overseas projects.
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TH110D20NZ-220 Rectifier Module Telecom 110VDC 20A for DC Power System Images
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