TH48T50ZZ-220 48V DC Rectifier
The TH48T50ZZ-220 is a high-power, intelligent 48V/50A (3KW) communication power supply module designed for demanding telecommunication systems. Utilizing advanced resonant power conversion technology, it features a natural convection (self-cooling) design for silent operation and high reliability. With its standard RS-485 interface, it seamlessly integrates into automated systems for comprehensive "Four-Remote" monitoring and control.
| Model Number |
TH48T50ZZ-220 |
| Brand Name |
TONHE |
| Input Voltage |
198-242VAC/220 |
| Output Current |
50A |
| Output Voltage |
43-53VDC/48 |
| Power |
3 KW |
| Uneven Current Sharing in Parallel Operation |
±3% |
| Efficiency |
≥92% |
| Startup Delay |
3～8s |
| Voltage Stabilization Accuracy |
±0.5% |
| Dimensions (L*W*H) |
391*139*263mm |
| Noise Level |
≤40dB |
| Weight |
10KG |
| Cooling |
Natural cooling |
| Warranty |
12 months |
| Place of Origin |
HeBei, China |
Product Advantages
- High Power with Silent Operation: Delivers 3KW of stable 48V DC power using a reliable, fan-less natural cooling design, eliminating noise and moving part failures.
- Robust & Intelligent: Offers ≥92% efficiency and supports remote monitoring, control ("Four-Remote" functions), and stable parallel operation with excellent current sharing (±3%).
- Comprehensive Protection: Built-in protections against over-voltage, short-circuit, over-temperature, and input abnormalities ensure safe operation for both the module and connected equipment.
- Wide Input Range: Compatible with a broad DC input voltage (198-242VDC), providing strong grid adaptability.
Application Scenarios
Ideal for core telecommunication infrastructure and other high-power DC applications:
- Telecommunication Hubs: Powering central office equipment, large program-controlled switches, and core network nodes requiring high-current 48V power.
- Industrial Control Systems: Serving as a reliable power source in environments where silent operation and high reliability are critical.
- Backup Power Systems: Acting as a key rectifier module in large-scale DC backup power systems for critical facilities.
Technical Specifications
| Output Current(A) |
50 |
| Power(KW) |
3 |
| Weight(KG) |
10 |
| Input Voltage Range(VDC) |
Minimum: 198, Typical: 220, Maximum: 242 |
| Adjustable Output Range(VDC) |
Minimum: 43, Typical: 49, Maximum: 53 |
| Voltage Regulation Accuracy |
±0.5% |
| Charger Efficiency |
≥92% |
| Maximum Audible Noise (dB) |
40 |
| Storage Temperature(℃) |
Minimum: -40, Typical: 25, Maximum: 60 |
| Operating Temperature(℃) |
Minimum: -10, Typical: 25, Maximum: 40 |
| Current Sharing Imbalance |
±3% |
| Startup Delay (s) |
3-8S |
| Peak-to-Peak Noise Voltage |
≤200mV |
Protection Features
| Automatic Current Limiting |
Once the output current reaches the set current limit, the module automatically switches to constant current operation, preventing any further increase in output current. |
| Overvoltage Protection |
If the output voltage exceeds 60-63 VDC, the module automatically stops output to prevent damage to connected equipment. |
| Short-Circuit Protection |
During an output short-circuit, the module self-protects to prevent damage. After the fault is cleared, normal operation is automatically restored. |
| Insulation Strength |
Input to Chassis: 1600VAC 1 min 5mA (No dielectric breakdown or flashover)
Input to Output: 1600VAC 1 min 4mA (No dielectric breakdown or flashover)
Output to Chassis: 600VAC 1 min 4mA (No dielectric breakdown or flashover) |
Product Images
Company Information & Support
Why choose us?
We are a high-tech enterprise integrating manufacturing, sales, system solutions, and after-sales service. With over 290 successful projects for 220 kV to 500 kV substations and battery systems above 1000 Ah, Tonhe has become a leading DC power system supplier in China, holding over 40% market share and producing 1 million modules annually. Choose us for exceptional quality, reliable support, and proven value.
How can we guarantee quality?
Our 8 advanced production lines, equipped with imported machinery, achieve 80% automation and up to 99% first-pass yield. All power modules undergo double-sided potting, conformal coating, and rigorous functional, environmental, and aging tests--ensuring reliable 24/7 performance in critical power infrastructures.
How We Support Your Business?
A full range of power conversion modules, system-level low-voltage DC distribution cabinets for DC loads, data center power systems, as well as customized hardware and software power solutions.
Can customers get sample orders?
Yes, you can get sample orders to test our quality. The cost of samples is paid by the customer.
What are the payment types?
We accept payment via TT (Telegraphic Transfer).
