Dehler
Dehler
In the era of Industry 4.0, the Molded Case Circuit Breaker (MCCB) has transitioned from a simple mechanical safety device to a sophisticated node in the smart electrical ecosystem. As a premier Mold Case Circuit Breaker Supplier, we recognize that high-quality circuit protection is the bedrock of industrial uptime, equipment longevity, and personnel safety.
Molded Case Circuit Breakers are designed to provide protection for circuits and equipment in case of overload, short circuit, and under-voltage conditions. Our manufacturing process integrates thermal-magnetic and electronic trip units to ensure precision response times. By adhering to international standards such as IEC 60947-2, we ensure that every MCCB leaving our facility meets the most rigorous safety benchmarks.
A short circuit can unleash catastrophic energy. High-quality MCCBs utilize advanced arc-extinguishing chambers to quench electrical arcs within milliseconds. Our design optimizes the contact system and the magnetic blowout effect, significantly reducing the "Let-Through Energy" (I²t) and protecting downstream components from thermal and mechanical stress.
Modern MCCBs are increasingly integrated with IoT sensors. This allows for real-time monitoring of current, voltage, and contact wear. Predictive maintenance is no longer a luxury; it is a necessity for data centers and critical infrastructure where downtime costs thousands of dollars per minute.
Dehler Technology Co., Ltd., established in 2016, is a technology enterprise integrating R&D, production, sales, and service, specializing in the high and low voltage power equipment industry. Based in Yueqing City—the "Electrical Capital of China"—we operate from advanced facilities at No. 271 Weishiqi Road and No. 178 Jingba Road.
Our specialization spans from Molded Case Circuit Breakers to high-voltage switchgear, prefabricated substations, and intelligent automation components. We serve critical sectors including power generation, railway electrification, steel mills, and renewable energy (wind and solar).
Established
Global Partners
Certified Quality
Located in Yueqing, we benefit from the world's most dense electrical component supply chain. This allow us to source premium raw materials—from high-conductivity copper to UL-rated plastics—at competitive prices, passing the value directly to our global clients.
Our internal R&D team can prototype and test custom MCCB configurations within weeks, not months. This agility is vital for international projects with unique voltage or environmental requirements.
As per the E-E-A-T principle, our reliability is backed by systematic testing. Every MCCB undergoes mechanical endurance tests, thermal calibration, and dielectric strength verification before shipment.
| Industry Sector | Critical Requirement | Our Solution |
|---|---|---|
| Renewable Energy (Solar/Wind) | High DC voltages & fluctuating loads. | Specialized DC MCCBs and Photovoltaic Combiner Boxes designed for 1000V/1500V systems. |
| Industrial Automation | Precision coordination and compact size. | Electronic trip MCCBs with adjustable settings to ensure selective coordination. |
| Heavy Industry (Steel/Mining) | Harsh environments, dust, and vibration. | High-endurance MCCBs with reinforced housings and high breaking capacities (Icu). |
| Commercial Buildings | Reliable service entrance protection. | Standardized MCCB ranges (16A to 1600A) for XL-21 distribution panels. |
Over the years, Dehler has diversified its product offerings and continuously upgraded its services. We have established long-term, stable partnerships with numerous suppliers and distributors globally. Our systematic and standardized quality management system serves as a strong foundation to advance our capabilities and cultivate a positive corporate image.
“High-quality products, superior technology, and impeccable service" are our core goals. Facing the challenges of international industrial electrical development, we have formulated a new strategy to innovate business philosophies, enhance management capabilities, and accelerate resource integration to compete globally.
While both are circuit breakers, an MCB (Miniature Circuit Breaker) is typically used for low-current applications (up to 125A), whereas an MCCB (Molded Case Circuit Breaker) handles higher currents (up to 2500A) and offers adjustable trip settings for professional industrial use.
Yes. As a leading factory-exporter, we can customize trip units, breaking capacities (Icu), and auxiliary attachments (shunt trips, auxiliary contacts) to meet specific project specifications in different countries.
Our products are designed to meet IEC 60947 standards. We also adhere to national quality systems and can facilitate third-party testing (CE, CB, RoHS) based on the procurement requirements of the region.
Standard MCCBs are calibrated for 40°C. In high-temperature environments like steel mills or desert solar farms, we apply a de-rating factor or provide high-temperature resistant components to ensure reliable protection.
Absolutely. We have a dedicated export department that handles everything from secure packaging to customs documentation, ensuring your electrical equipment arrives safely anywhere in the world.
