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.
