48V Embedded Rectifier Telecom Power System With ≥96% Efficiency 220V AC/DC Dual Input And 12KW High Power

High-performance 48V DC power system designed for telecommunications applications with dual input capability and intelligent monitoring features.

Supports 220V AC/DC dual input with ±15% wide voltage tolerance, adapting to complex power grid environments in outdoor/remote areas. 12KW high power, 200A output at 48V meets the power demand of multi-device concurrent operation in medium and small communication stations.

System efficiency up to ≥96%, matching high-performance rectifier modules TH48D30NZ-S-3/TH48D50NZ-S-3, effectively reducing power consumption and operation costs for long-term running communication equipment.

Equipped with dedicated THJK020-48V monitoring unit with LCD display and key operation. Real-time monitoring of bus voltage/current, battery status and module working parameters. Supports automatic equalization/floating charge management with temperature compensation, current limiting and other battery protection functions. Optional battery inspection module realizes real-time detection of 2V/12V battery cell voltage.

Supports RS232/485, SNMP communication protocols, compatible with Modbus protocol. Dual background communication enables remote tele-measurement, tele-signaling and tele-control. 16 switch input and 16 switch output interfaces provide flexible linkage with peripheral equipment, fault alarm and signal output.

Full-range fault alarm (over-voltage/under-voltage, over-current, over-temperature, module fault, etc.) with Chinese character display of alarm information for clear fault location. Stores 4096 historical faults and 2048 operation records (power-off non-volatile). Built-in buzzer and red light flash alarm with customizable alarm thresholds for all-round system operation safety.

4U rack-mounted embedded design, size only 482*400*177mm, suitable for 19/21 inch cabinet installation, saving space for limited equipment room in edge communication nodes. Simple wiring and humanized operation interface requires no professional technical personnel for on-site debugging and operation.

• Powerful Expansion: Maximum 4 rectifier modules with flexible configuration according to actual power demand; supports matching of battery inspection module, insulation monitoring unit, etc.
• Stable Operation: DC48V standard communication power supply with 40-60V wide working voltage range, adapting to voltage fluctuation in outdoor power grid.
• Fault Self-recovery: Built-in watchdog circuit and comprehensive protection mechanism with automatic fault alarm and linkage processing, ensuring no interruption of core communication equipment power supply.
• Data Storage: Real-time clock (power-off normal operation) with long-term storage of fault and operation data for convenient maintenance and data analysis.

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.

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.

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.