Dehler
Dehler
In the modern electrical landscape, the Ring Main Unit (RMU) serves as the backbone of urban and industrial power distribution. As a leading China Ring Main Distribution System Manufacturer, Dehler Technology understands that the shift toward "Smart Cities" and "Industry 4.0" requires more than just hardware; it requires a redundant, intelligent, and compact solution for medium-voltage networks.
A Ring Main Distribution System is a factory-assembled, metal-enclosed controlgear used at the load connection points of a ring-type distribution network. Its primary advantage is reliability—if one part of the ring fails, power can be rerouted through the other side of the ring, ensuring zero downtime for critical infrastructure.
Power Reliability
Equipment Lifespan
Insulation Options
The global demand for Ring Main Units is projected to grow significantly, driven by the rapid expansion of renewable energy integration and the modernization of aging grids in North America and Europe. In Southeast Asia and Africa, the focus is on rapid urbanization, where space-saving designs are paramount.
Wind and solar farms require RMUs that can handle fluctuating loads and provide robust protection for remote substations.
Gas-insulated switchgear (GIS) allows for 50-70% reduction in footprint, making them ideal for high-density metropolitan areas.
The rise of "Smart RMUs" equipped with IoT sensors allows for predictive maintenance, reducing operational costs by 30%.
Established in 2016, Dehler Technology Co., Ltd. is located in the Yanpan Economic Development Zone, Yueqing City. We are a technology enterprise integrating R&D, production, sales, and service, specializing in the high and low voltage power equipment industry.
Our production range includes high & low voltage switchgear, Prefabricated substations, cable branch cabinets, and various electrical components. We adhere to the philosophy: "Survival through quality, development through technology, and efficiency through management."
Over the years, our company has diversified its product offerings and continuously upgraded its services. We strictly adhere to national quality system standards, which strengthens our overall strength and cultivates a positive corporate image. We specialize in precise, reliable, energy-saving, and environmentally friendly intelligent power distribution products.
China has become the global hub for power equipment manufacturing not just due to cost, but because of the Information Gain and technical innovation developed through the world's largest domestic grid expansion (State Grid China).
From spring-loaded flat contacts to SF6 circuit breakers, we manufacture key components in-house, ensuring 100% quality control and faster lead times.
Chinese manufacturers can prototype and iterate custom switchgear designs in weeks, whereas traditional Western OEMs may take months.
High-volume production allows us to offer premium components, like silver-plated plum blossom contacts, at a competitive global price point.
Our Ring Main Distribution Systems are engineered for diverse environments across the globe:
As the industry moves toward "Net Zero," RMU technology is evolving in three key directions:
Transitioning toward Air-Insulated or Solid-Insulated RMUs to eliminate Greenhouse Gas emissions, aligning with EU and Global environmental regulations.
Integration of Automatic Transfer Switches (ATS) and intelligent controllers that detect faults and restore power in milliseconds without human intervention.
Using cloud-based analytics to monitor the temperature and vibration of vacuum circuit breakers, preventing failure before it occurs.
“High-quality products, superior technology, and impeccable service" are the goals pursued by Dehler. We have rapidly established a systematic, large-scale production model to face the opportunities and challenges of international industrial electrical development.
In this new environment, we strive to innovate our business philosophy, enhance management capabilities, improve our market network, and accelerate resource integration. Based in China, with a global perspective, we sincerely welcome all parties to visit and inquire!
Gas-Insulated Switchgear (GIS) uses SF6 gas for insulation, allowing for a much smaller footprint. Air-Insulated Switchgear (AIS) uses atmospheric air and is generally larger but simpler to maintain and more environmentally friendly if gas leakage is a concern.
All our products undergo rigorous testing, including lightning impulse voltage tests, partial discharge tests, and mechanical endurance tests, adhering to IEC 62271 standards. Our SF6 circuit breakers and vacuum circuit breakers are tested for thousands of operations.
Yes. As a direct manufacturer, we offer customization for voltage ratings (3.6kV to 40.5kV), protection relay brands (Schneider, ABB, or domestic high-quality brands), and enclosure materials (stainless steel for coastal areas or galvanized steel for inland).
Standard configurations typically take 4-6 weeks. Custom-engineered solutions for large-scale industrial projects may take 8-12 weeks, including the design approval phase.
