Industrial-grade intelligent high-frequency switching power supply module engineered for global single-phase AC input applications with rated output of 110VDC/20A (3KW).

• Modular design supporting N+1 hot backup and seamless capacity expansion
• Up to 20 units operating in parallel with current sharing imbalance <±3%
• Standard RS485 communication interface compatible with Modbus and TonHe protocols
• Four-remote functions (telemetry, remote signaling, remote control, remote adjustment)
• Three operating modes (independent/manual/automatic)
• Hot-swapping capability for safe and efficient maintenance

• Automatic Current Limiting: Operates in constant current mode when output current exceeds set limit
• Output Overvoltage Protection: Automatically stops output when voltage exceeds 160±3VDC
• Output Short-Circuit Protection: Self-protects in case of short circuit and automatically recovers after fault removal

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.

Yes, you can get sample orders to test our quality. The cost of samples is paid by the customer.

We accept payment via TT (Telegraphic Transfer).