Product Features
control accuracy up to 1% throughout the entire range.
This 300A 400V Electrophoresis Rectifier provides stable and adjustable DC power for industrial electrophoretic coating processes. Specifically, it effectively solves common problems such as uneven film thickness, weak adhesion and unstable current output in traditional coating systems. Moreover, as a mainly customized product, it can perfectly match cathode and anode electrophoresis production lines, ensuring consistent surface finishing quality for various metal workpieces under continuous working conditions. Additionally, its optimized design ensures smooth integration with existing production systems without extra modification.
To begin with, adopting advanced high-frequency IGBT technology, this 300A 400V Electrophoresis Rectifier achieves efficiency above 90% and greatly lowers long-term operating costs. Meanwhile, its ultra-stable DC output ensures smooth and even coating film, significantly improving product appearance and corrosion resistance. Furthermore, industrial-grade structure and components enable it to work reliably in harsh workshop environments with high humidity and dust. Since customization is our core advantage, parameters like voltage, current, control mode and cooling type can all be adjusted to meet specific production requirements. In addition, multiple built-in protections effectively avoid equipment damage and production interruptions, extending service life and reducing maintenance costs.
| Model | Output Current (A) | Output Voltage (V) | Power (kW) | Input Current (A) | Input Voltage (V) | Weight (KG) | W*L*H (mm) |
| DY2100 | 2 | 100 | 0.2 | 1 | 220 | 16 | 420*420*150 |
| DY10100 | 10 | 100 | 1 | 5 | 220 | 18 | 420*420*150 |
| DY20100 | 20 | 100 | 2 | 10 | 220 | 18 | 420*420*150 |
| DY30100 | 30 | 100 | 3 | 15 | 220 | 18 | 420*420*150 |
| DY50100 | 50 | 100 | 5 | 25 | 380 | 20 | 420*420*150 |
| DY5100100 | 100 | 100 | 10 | 50 | 380 | 50 | 550*450*320 |
| DY50150 | 50 | 150 | 7.5 | 38 | 380 | 20 | 420*420*150 |
| DY100150 | 100 | 150 | 15 | 75 | 380 | 50 | 550*450*320 |
| DY50200 | 50 | 200 | 10 | 50 | 380 | 20 | 420*420*150 |
| DY100200 | 100 | 200 | 20 | 100 | 380 | 70 | 560*580*680 |
| DY100250 | 100 | 250 | 25 | 125 | 380 | 70 | 580*510*680 |
| DY100300 | 100 | 300 | 30 | 150 | 380 | 70 | 580*510*680 |
| DY200200 | 200 | 200 | 40 | 200 | 380 | 70 | 580*510*680 |
| DY200300 | 200 | 300 | 60 | 300 | 380 | 90 | 580*510*920 |
| DY300300 | 300 | 300 | 90 | 450 | 380 | 100 | 580*510*920 |
| DY400300 | 400 | 300 | 120 | 600 | 380 | 130 | 580*510*1150 |
| DY500300 | 500 | 300 | 150 | 750 | 380 | 180 | 600*530*1600 |
| DY400400 | 400 | 400 | 160 | 800 | 380 | 180 | 600*530*1600 |
| DY200350 | 200 | 350 | 70 | 350 | 380 | 100 | 580*510*920 |
| DY250300 | 250 | 300 | 75 | 375 | 380 | 100 | 580*510*920 |
| DY250350 | 250 | 350 | 87.5 | 438 | 380 | 100 | 580*510*920 |
| DY30250 | 30 | 250 | 7.5 | 38 | 380 | 20 | 420*420*150 |
| DY150250 | 150 | 250 | 37.5 | 188 | 380 | 70 | 560*580*680 |
Electrophoresis Machine Functions: Single timing, soft start
Control Method: Panel control or remote box control
The product comes with a one-year warranty and boasts a service life of over 10 years. It supports both Constant Current and Constant Voltage modes, and it also includes a programmable ramp-up function for current or voltage settings. For time-sensitive applications, you can use the timed operation mode. Moreover, the multi-segment function allows you to vary constant current or voltage levels over time. The device further offers an RS485 communication interface, automatic polarity reversal, and a minute-level timing function. If you need customization, please contact us for further details.

1. 6cm screw fixing hole
Mounting hole for securing the control panel.
2. Output voltage display
Shows real-time output voltage (unit: V).
3. Output current display
Shows real-time output current (unit: A).
4. Timing/ampere display
Shows timer count or cumulative ampere-minute value for process control.
5. Manual/automatic indicator light
Indicates whether the unit is in manual (local) or automatic (remote/RS485) control mode.
6. Power on/off indicator light
Shows the power supply’s on/off status.
7. Stable voltage/stable current indicator
Indicates operation in constant voltage (CV) or constant current (CC) mode.
8. ON/OFF button
Controls power output start/stop.
9. CV/CC button
Switches between constant voltage (CV) and constant current (CC) operating modes.
10. Output current or voltage adjustment knob
Adjusts output voltage/current; click to switch between quick and fine adjustment modes.
11. Automatic/Manual button
Toggles control mode between automatic (RS485 communication) and manual (local control).
12. Up/down buttons
Adjust values or navigate menu options.
13. SET button
Enters parameter settings (timing, ampere-counter, communication, etc.).
14. RX2/TX2
Secondary RS485 communication port (receive/transmit).
15. RX1/TX1
Primary RS485 communication port (receive/transmit).
16. RS485 communication interface
Wiring port for the RS485 communication bus.
17. Host control cable
Connection port for linking to the main power supply unit.
18. Timing indicator light
Lights when the timer function is active.
19. Ampere Counter Indicator
Lights when the cumulative ampere-minute function is active.
This 300A 400V Electrophoresis Rectifier is widely used in automotive parts, home appliances, hardware and metal furniture manufacturing. Beyond that, it is suitable for both small-batch processing workshops and large automated assembly lines. Moreover, it supports cathode electrophoresis, anode electrophoresis and various water-based coating materials. It also integrates well with PLC automatic control systems and can adapt to different workpiece sizes and coating process requirements.
First of all, we have rich experience in designing and manufacturing industrial power supplies, focusing on customized rectifier solutions. In addition, our professional R&D team can develop exclusive products according to customer process parameters and site conditions. Next, all products pass strict quality tests and have CE and ISO9001 certifications to ensure stable performance. Furthermore, we provide fast delivery, on-site commissioning and comprehensive after-sales technical support. Finally, our strong customization capacity and reliable service make us a trusted partner for coating production lines.


Learn more about related products:15A 800V Electrophoresis Rectifier Air Cooled
A: Products with the same nominal specifications often serve different industries, and they may carry different detailed parameter requirements. These differences directly affect production costs and technical solutions, so final prices will vary accordingly. For this reason, we recommend you contact us directly to receive a precise and tailored quotation.
A: We assign specialized consultants to support each industry sector. If you need further information, simply reach out to us. After we confirm your request, we will immediately send you the full technical datasheets and product images you need.
A: We focus on custom non-standard industrial power supplies, so we can fully adjust output current and voltage to match your exact needs. The products shown on our website only represent part of our actual range, as we do not list every model online. If you cannot find your desired specifications, please contact us directly. We will work with you to confirm your exact requirements, or we can guide you to select the most suitable parameters based on your industry standards. We will provide complete technical specifications and dimension drawings so you can fully understand the product.