Tonhe TH230D10NZ-220 DC Screen Charging Module 220V 10A High Frequency Rectifier

Product Introduction
The TH230D10NZ-220 is the 220VAC-input model of the TH230D10NZ series intelligent high-frequency switching DC charging modules manufactured by Shijiazhuang Tonhe Electronics Technology Co., Ltd. (A-share listed company, stock code 300491). It delivers a rated output of 220VDC / 10A and is widely used in DC power systems (DC screens) of substations and power plants, where it charges battery banks under constant-current/voltage-limited control and simultaneously supplies DC loads such as protection, control, operation and signaling circuits. The module adopts high-frequency soft-switching conversion and digital control technology, with a built-in digital current-sharing circuit and isolation diode. It supports three operating modes — automatic, manual and independent — and can be networked with a system monitor via RS485/CAN for telemetry, remote signaling, remote control and remote adjustment. With high efficiency, compact size and high power density, the module supports direct parallel operation of multiple units and N+1 redundancy, and its electromagnetic compatibility meets national standards. It is the core AC/DC conversion unit of DC power panels.

Technical Specifications

Key Advantages
1. High efficiency, low losses: Full-range soft-switching conversion with peak efficiency ≥95% and power factor ≥0.94 means less heat, lower temperature rise and reduced electricity and cooling costs over the product lifetime.
2. High reliability with redundancy: Digital control plus digital current sharing keeps the current-sharing imbalance within ≤±3%; multiple modules can be paralleled to form an N+1 redundant system, so a single module failure does not affect the DC bus. The built-in isolation diode lets a faulty module drop out automatically.
3. Intelligent networking: Dual RS485 and CAN communication ports with MODBUS and Tonhe TH protocol support enable the "four-remote" functions (telemetry, remote signaling, remote control, remote adjustment) via the system monitor, plus automatic, manual and independent operating modes for flexible commissioning.
4. Compact and easy to maintain: The 160 × 67 × 299.5mm footprint and approx. 4.7kg weight deliver high power density that saves cabinet space; the fan can be replaced without tools for fast on-site maintenance.
5. Strong environmental adaptability: Wide input voltage range, -10°C ~ +40°C operating temperature and EMC compliance with national standards suit substations, power plants, distribution rooms and other harsh electromagnetic environments.

Export Case References
Tonhe products are exported to more than 30 countries, with key overseas markets covering East Asia, South Asia, Southeast Asia, the Middle East, Europe and North America. According to the company's English corporate profile, overseas end-project customers include the Rajasthan Power Plant (India), Jurala Power Station (India), Bintulu Power Plant (Malaysia) and Khulna Power Plant (Bangladesh), where its DC power / charging modules are used in the DC systems of local power plants and substations. The products have obtained CE and UL certifications and multiple models have entered the European and North American markets. Per the company's financial reports, 2024 overseas revenue reached approximately RMB 60 million, up about 19% year-on-year, with an overseas gross margin of approximately 51.5%. Tonhe has also been actively expanding internationally through power exhibitions in the US, Germany, South Korea, Indonesia, Abu Dhabi, Munich and Russia in 2024, as well as ASEW 2026 (Thailand) and Electric & Power Indonesia 2026, deepening its presence in Southeast Asian and South Asian markets.

FAQ
Q1: What is the difference between the TH230D10NZ-220 and the TH230D10NZ-D?
A: Both share the same output characteristics (220VDC / 10A); the difference is the AC input: the -220 accepts single-phase 220VAC input with 176–260VDC output, while the -D accepts three-phase 380VAC input with 176–300VDC output. Choose the model according to the on-site AC supply configuration.

Q2: Can multiple modules be paralleled for capacity expansion?
A: Yes. The module has a built-in digital current-sharing circuit with imbalance within ≤±3%, so identical modules can be paralleled directly and form an N+1 redundant system with the system monitor. Expansion is as simple as plugging in an additional module.

Q3: How does the module connect to the DC screen monitoring system?
A: The module provides RS485 and CAN communication ports supporting MODBUS and the Tonhe TH protocol. It can be connected to the DC screen monitor for voltage/current telemetry, fault remote signaling, remote on/off control and parameter remote adjustment.

Q4: What operating environments is it suitable for?
A: With an operating temperature of -10°C ~ +40°C, forced-air cooling and EMC compliance, it suits indoor installations such as substation and power plant DC screens, distribution rooms and telecom rooms. The wide input voltage range also tolerates grid fluctuations.

Q5: What are the warranty and after-sales services?
A: Tonhe is an A-share listed company (300491). The module carries a standard warranty (1 year, extendable by contract) and each unit is individually tested before shipment. Technical consultation, fault diagnosis, spare parts supply and on-site or remote support are available for customers worldwide.