TH400X03ZZ Industrial Rectifiers
Product Overview
The TH400X Series is a high-frequency switching power supply module
specifically designed for fire protection systems. Developed by
Tonghe Electronic Technology Co., Ltd., this module adopts advanced
resonant voltage-type dual-loop control technology, ensuring high
efficiency, compact size, and reliable performance.
Key Specifications
Model Number: TH400X03ZZ
Brand Name: TONHE
Input Voltage: 323-437VAC/380VAC
Output Current: 3A
Output Voltage: 300-450VDC/405VDC
Power: 1.3 KW
Efficiency: ≥94%
Dimensions: 260*116*218mm
Weight: 5 kg
Warranty: 12 months
Product Advantages
- Modular design with N+1 hot redundancy for flexible and scalable
power capacity
- High efficiency of up to 94%-96% with passive power factor
correction (PF ≥ 0.88)
- Comprehensive protection including overvoltage, overcurrent,
short-circuit, and overtemperature safeguards
- Intelligent control via RS-485 communication for remote monitoring
and adjustment
- Plug-and-play installation with easy maintenance without system
downtime
- Clear LED display for real-time voltage, current, and fault status
indication
Technical Performance
| Parameter | TH400X03ZZ | TH400X05ZZ | TH400X07ZZ |
|---|
| Output Current (A) | 3 | 5 | 7 |
| Output Power (KW) | 1.3 | 2.2 | 3.2 |
| Weight (kg) | 5 | 9 | 9 |
| Input Power Factor | ≥0.91 | ≥0.88 | ≥0.88 |
Application Scenarios
This power supply module is primarily designed for fire protection
systems, ensuring uninterrupted and stable power to critical fire
safety equipment. It is also suitable for various industrial and
commercial applications requiring reliable DC power, such as
emergency lighting, security systems, communication infrastructure,
and other automated facilities.
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.
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).
