MDD100-800S24 High-Voltage DC-DC Isolated Power Module: Built for 1300VDC Extreme Input
In high-voltage DC applications such as photovoltaic power stations, energy storage systems, and rail transit, DC bus voltages keep rising toward higher levels, and kilovolt-level DC buses are becoming increasingly common. For systems drawing power from ultra-high-voltage buses, a power module with a sufficiently high input ceiling and stable, reliable output is the key to the entire power supply chain. The MDD100-800S24 high-voltage DC-DC isolated power module from Guangdong Mingzinc Technology Co., Ltd. stands at the highest voltage level of the MDD series with an 800VDC rating and a 300-1300VDC extreme input range.
1. 300-1300VDC Input — Facing Kilovolt-Level DC Buses Directly
The MDD100-800S24 has a rated input voltage of 800VDC and an input range of 300-1300VDC — the highest voltage rating in the MDD series. From 300V medium-voltage DC to 1300V ultra-high-voltage DC buses, the module can draw power safely and step down stably without an additional front-end stage, directly handling kilovolt-level power supply scenarios.
This feature is especially critical in large photovoltaic power stations and high-voltage energy storage systems: as more panels are connected in series and DC bus voltage keeps climbing, only power modules with a sufficiently high input ceiling can operate reliably at kilovolt levels over the long term.
2. 100W Stable Output — 24V Power with Ease
The MDD100-800S24 provides a stable 24VDC single-channel output with an output current of 4.16A and a power rating of 100W — ample capacity to drive controllers, communication modules, monitoring equipment, and various common loads.
For power quality, the module keeps ripple within 200mV and achieves a typical efficiency of 82%. Higher efficiency means less energy loss and heat — especially valuable in high-voltage, high-power operation — helping to reduce overall system consumption and extend equipment lifetime.
3. Isolation, Cooling, and Response — Triple Design for Stability
For electrical isolation, the module's input-to-output isolation voltage exceeds 1500VDC. Even under kilovolt-level input, it effectively blocks common-mode interference and provides a "quiet" grounding environment for sensitive analog and digital circuits, reducing sensor misoperation and communication interference.
For thermal design, the module adopts natural cooling without an external fan — quiet operation with fewer failure points. Combined with high-reliability, long-lifetime design, it suits long-running, unattended applications such as photovoltaic power stations and rail transit.
For dynamic response, the module recovers output stability quickly under sudden load changes, preventing voltage dips from affecting downstream equipment and ensuring continuous, reliable system operation.
4. Five Layers of Protection — Safety Without Compromise in High-Voltage Environments
The MDD100-800S24 is equipped with a complete protection mechanism: input under-voltage protection, input over-voltage protection, output over-current protection, output short-circuit protection, and over-temperature protection. In high-voltage input environments, protection matters even more — whether the input side experiences abnormal fluctuations or the output side suffers a short circuit or overload, the module responds promptly and shuts down proactively, containing the fault impact to the smallest range and safeguarding both equipment and loads.
5. Typical Applications
Solar Photovoltaic: Large PV stations feature high bus voltages; the 300-1300VDC input range confidently handles kilovolt-level power take-off.
New Energy & Energy Storage: Provides stable, efficient isolated step-down conversion for high-voltage energy storage system DC buses.
Rail Transit: Suitable for high-voltage DC power systems in carriage and station equipment — vibration-resistant, temperature-tolerant, and long-lasting.
Industrial Control & Communication Engineering: Provides isolated regulated power for control boards and communication modules, improving system anti-interference capability.
6. About Mingzinc
Guangdong Mingzinc Technology Co., Ltd. has focused on power solutions for 17 years, integrating R&D, production, sales, and service. With a strong R&D team and modern production lines, every product passes four strict inspections before shipment — debugging, aging, quality, and packaging — and we offer free selection support as well as OEM/ODM services.
For selection or customization needs, please call our free hotline 400-019-3997, or contact us via QQ (783217385) or WhatsApp (13817961199).
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