Ranko Power
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The DH10 Series Programmable DC Power Supply is a high-performance power solution specifically engineered for automation control applications in scientific research and industrial sectors. Featuring exceptional electronic characteristics including high accuracy, precision, and stability, this product line incorporates comprehensive overvoltage and overtemperature protection circuits to ensure enhanced reliability. Users can configure voltage, current, and timing parameters via panel settings or remote control interfaces connected to host computers, enabling programmable automated testing capabilities.
| Specification | Dimensions & Weight |
|---|---|
| 1U half-width size weight | 215*44*450 4.8kg |
| 1U full-width size weight | 430*44*450 8.5kg |
| Parameter | Specification Details / Models | ||||||
|---|---|---|---|---|---|---|---|
| Model | DH10-3025 | DH10-3030 | DH10-3040 | DH10-3050 | DH10-3060 | DH10-3080 | DH10-30100 |
| AC Input | Single-phase 220V ±10%, Frequency: 50Hz/60Hz | ||||||
| Output Voltage | 0-30V | ||||||
| Output Current | 0-25A | 0-30A | 0-40A | 0-50A | 0-60A | 0-80A | 0-100A |
| Output Power | 750W | 900W | 1200W | 1500W | 1800W | 2400W | 3000W |
| Power Supply Stability Rate | Less than or equal to 0.1%+10mV | ||||||
| Load Stability Rate | 0.1%+30mV | ||||||
| Voltage Stabilization Accuracy | Less than or equal to ±0.1%FS | ||||||
| Steady Flow Accuracy | Less than or equal to ±0.1%FS | ||||||
| Ripple Wave RMS | ≤0.1%FS+10mV | ||||||
| Voltage Setting Accuracy | ±0.1%FS+10mV | ||||||
| Current Setting Accuracy | ±0.1%FS+10mA | ||||||
| Voltage Readback Accuracy | 5-digit number display: Precision: ±0.1%FS + 3 digits (covering 10%–100% of the rated value) | ||||||
| Voltage Resolution Ratio | 1mV | ||||||
| Current Readback Accuracy | 5-digit number display: Precision: ±0.1%FS + 3 digits (covering 10%–100% of the rated value) | ||||||
| Current Resolution Ratio | 1mA | 10mA | |||||
| Display Mode | Code-breaking screen display | ||||||
| Overvoltage Protection | Enable O.V.P protection in the menu. The protection threshold can be set arbitrarily. The output will be turned off when protection is activated. | ||||||
| Overcurrent Protection | Set the menu to O.I.P protection. The protection value can be customized. After protection, the output is disabled. | ||||||
| Overtemperature Protection | Built-in O.T.P protection with a protection threshold of 85°C ±5% (radiator temperature). | ||||||
| Voltage Setting | Menu settings, encoder knob input | ||||||
| Current Setting | Menu settings, encoder knob input | ||||||
| Communication Mode | RS-485/RS-232 (supports Modbus and SCPI protocols) | ||||||
| Functional Details | Constant voltage/constant current, return-type current protection, memory mode, LIST sequence cycle, adjustable ON/OFF time, pulse width output, 9999 cycles, three preset voltage current settings (full-width models), button lock | ||||||
| Output Polarity | The positive (+) and negative (-) outputs can be grounded arbitrarily. | ||||||
| Heat Dissipation Method | Forced air cooling | ||||||
| Operational Environment | Indoor design: Temperature: 0°C to 40°C; Humidity: 10% to 85% RH | ||||||
| Storage Environment | Temperature: -20°C to 70°C; Humidity: 10% to 90% RH | ||||||
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Note: All values are typical and may exceed these figures under different loads or other conditions. The accuracy is measured during load-side voltage detection; deviations between actual and rated values may occur due to temperature errors and component aging. * FS stands for full scale range; the three digits indicate the last displayed value. |
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Founded in 2026, the company is a professional high-tech enterprise integrating R&D, production, manufacturing, and global sales of variable frequency power supplies and power testing equipment. Adhering to the core values of Quality First, Integrity-Based, and Customer Foremost, the organization has been committed to providing stable, high-performance, and intelligent power solutions for manufacturers, laboratories, and industrial users around the world since its establishment. We focus on solving key power supply challenges in product R&D testing, production aging, quality inspection, and reliability verification for export-oriented enterprises. With advanced design concepts, strict production control, and professional technical capabilities, we provide precision, efficiency, stability, and clean power solutions to help customers improve product quality, optimize production efficiency, and enhance international market competitiveness.
Our main products include single-phase variable frequency power supplies, three-phase variable frequency power supplies, programmable variable frequency power supplies, single-phase transformers, three-phase transformers, programmable electronic loads, and high-voltage power supplies. These products are widely used in home appliance manufacturing, motor testing, electronic manufacturing, the IT industry, computer equipment, communication equipment, new energy, laboratory research, and industrial automation fields. They are especially suitable for international markets with different voltage and frequency standards such as 110V/60Hz, 220V/50Hz, 220V/60Hz, 380V/50Hz, and 400V/60Hz.
At present, our products have been exported to many countries and regions in Europe, the United States, South America, Asia, and the Middle East, and have obtained EU CE certification, which fully meets the access requirements of the international market. Relying on reliable quality, superior performance, and complete supporting services, we have won high recognition and trust from customers at home and abroad. We provide customers with a comprehensive after-sales service system, including a one-year free whole-machine warranty, lifetime maintenance, free on-site operation training, and a full range of technical guidance. From product selection and scheme design to installation, commissioning, and after-sales support, we provide customers with one-stop integrated power protection solutions, truly realizing full-cycle service from equipment supply to system guarantee.
We will continue to take technological innovation as the driving force, quality as the foundation, and customers as the center. We are determined to become a reliable global partner in the field of variable frequency power supplies and power testing equipment, helping more manufacturing products enter the global market smoothly.
