TH48T50ZZ 48V DC Rectifier
Product Overview
The TH48T50ZZ is a robust, intelligent 48V/50A (3KW) switching power supply module designed for high-power telecommunication and industrial systems. It operates from a standard three-phase 380VAC input and utilizes advanced "resonant voltage-type dual-loop control" technology for high efficiency and reliability.
| Model Number | TH48T50ZZ | Brand Name | TONHE |
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| Input Voltage | 304-456VAC/380VAC | Output Current | 50A |
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| Output Voltage | 40-58VDC/53.6V | Power | 3 KW |
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| Current Sharing in Parallel | ±3% | Efficiency | ≥92% |
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| Voltage Stabilization Accuracy | ±0.6% | Startup Delay | 3～8s |
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| Input Power Factor | ≥0.93 | Cooling | Natural cooling |
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| Dimensions (L*W*H) | 391*139*263mm | Noise | ≤50dB |
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| Warranty | 12 months | Place of Origin | HeBei, China |
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Key Product Advantages
High-Power Three-Phase Input
Designed for 304-456VAC three-phase input, providing efficient and stable power conversion for demanding high-capacity applications.
High Efficiency & Power Factor
Delivers ≥92% efficiency with a high input power factor (≥0.93), reducing energy loss and improving grid-side performance.
Comprehensive Protection
Features robust protections including output over-voltage, short-circuit, over-temperature, and phase-loss protection.
Scalable System Integration
Supports N+1 hot-standby configuration and excellent parallel current sharing (±3%), allowing for smooth system expansion.
Technical Specifications
| Parameter | Value |
|---|
| Output Current (A) | 50 |
| Power (KW) | 3 |
| Input Voltage Range (VAC) | 304 (Min) / 380 (Typical) / 456 (Max) |
| Adjustable Output Range (VDC) | 40 (Min) / 53.6 (Typical) / 58 (Max) |
| Voltage Regulation Accuracy | ±0.6% |
| Input Power Factor | ≥0.93 |
| Efficiency | ≥92% |
| Maximum Audible Noise (dB) | 50 |
| Storage Temperature (°C) | -40 (Min) / 50 (Typical) / 60 (Max) |
| Operating Temperature (°C) | -10 (Min) / 50 (Typical) / 40 (Max) |
| Current Sharing Imbalance | ±3% |
| Startup Delay (s) | 3-8 |
| 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.
- Overvoltage Protection: If the output voltage exceeds 60-63 VDC, the module automatically stops output to prevent equipment damage.
- Phase Loss Protection: When any AC mains phase is missing, the module reduces maximum output current to 25A ±0.5A and triggers an alarm.
- Short-Circuit Protection: During an output short-circuit, the module self-protects and automatically restores normal operation after fault clearance.
- Insulation Strength: Input to Chassis: 1600VAC/1min/5mA; Input to Output: 1600VAC/1min/4mA; Output to Chassis: 600VAC/1min/4mA
Application Scenarios
- Large Telecommunication Facilities: Central offices, data centers, and major network hubs requiring reliable, high-capacity 48V DC power systems.
- Industrial Power Systems: As a core power component in integrated AC/DC power systems or industrial control settings with three-phase power infrastructure.
- Critical Backup Power Systems: Serving as a high-power rectifier module in large DC backup power arrays for essential equipment and facilities.
Product Images
Company Information & Support
Why choose Tonhe?
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.
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?
We provide 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).
