This high-voltage ACB air circuit breaker is engineered for reliable performance in demanding electrical environments. With a rated voltage of 40.5kV, it is ideal for applications in overhead lines, industrial plants, mining operations, power stations, and substations. The breaker ensures system protection under normal operating conditions and meets grid requirements with automatic re-making, stable operation, and a long electrical life.
Designed to comply with international standards including IEC 62271-100 and GB/T 11022-2011, this circuit breaker offers robust performance and safety. It operates effectively in ambient conditions with altitudes up to 2000 meters, temperatures ranging from -40°C to +40°C, and relative humidity not exceeding 95% daily or 90% monthly. The device is built to withstand pollution level IV and wind speeds up to 34m/s.
Key features include a vacuum arc-extinguishing medium for efficient interruption, electric operation type, and high-speed breaking capacity. It provides comprehensive protection functions such as conventional circuit breaking, circuit-breaker failure protection, overcurrent protection, and overvoltage protection (OVP). The fixed installation structure and three-pole design ensure ease of integration into various power systems.
Certifications include VDE, ISO9001-2000, CE, CB, and CCC, affirming its quality and reliability. The product supports OEM and customization options, with a delivery time of 15 days to one month. A one-year warranty is provided, backed by lifelong technical support and after-sales services to ensure customer satisfaction and uninterrupted operation.




Just received the High Voltage ACB Air Circuit Breaker 40.5kV. The logistics were impressively fast, arriving two days ahead of schedule with secure packaging. The build quality feels robust and durable, clearly suited for demanding industrial environments. Customer service was responsive and helpful during the ordering process, providing clear guidance on specifications. Overall, a smooth and satisfactory experience without any issues. Great job!
Hats off to the entire team for a truly seamless experience from start to finish. The logistics were handled with impeccable precision; the shipment arrived ahead of schedule and was packaged with exceptional care, ensuring the product was perfectly secure. Regarding quality, the construction and finish of the circuit breaker are outstanding, reflecting superior manufacturing standards and robust materials that inspire confidence for industrial applications. The customer service provided was equally commendable, characterized by prompt, clear, and professional communication at every step. They were attentive to details and proactive in providing updates, which made the entire procurement process remarkably smooth and stress-free. This level of execution in logistics, product integrity, and supportive service is precisely what defines a reliable supplier in the high-voltage equipment sector.
The transaction was handled with impressive professionalism. Timely delivery was a key concern for our project timeline, and the logistics team executed flawlessly. The shipment arrived precisely within the estimated window, which is a testament to their efficient coordination and reliable shipping partners. Packaging was robust and secure, ensuring the product was impeccably protected during transit. There were no delays or complications, which is often a challenge with specialized industrial equipment. Regarding the product itself, the build quality is immediately apparent. The materials feel substantial and durable, meeting the high standards required for industrial power systems. Initial inspections reveal excellent craftsmanship and attention to detail, which instills confidence in its long-term performance and safety. The service experience was equally commendable. Communication from the sales and support teams was clear, responsive, and helpful throughout the entire process. They provided necessary documentation promptly and were proactive in offering updates. This level of attentive service makes a significant difference, especially when dealing with complex electrical components. Overall, this was a very satisfactory procurement experience from start to finish. The combination of reliable logistics, evident product quality, and outstanding customer support creates a strong foundation for trust and future business. I would not hesitate to recommend this supplier to other professionals in the industry seeking dependable high-voltage solutions.
Great experience overall with the ordering and delivery process. The logistics were handled exceptionally well, with the shipment arriving ahead of the estimated schedule. The packaging was robust and secure, ensuring the product was well-protected during transit. Regarding the quality, the circuit breaker appears to be manufactured to high standards, with solid construction and premium materials evident upon inspection. The service provided by the team was commendable; they were responsive and professional in all communications, providing clear updates. Generally, a very positive transaction from start to finish, demonstrating a reliable supply chain and a commitment to customer satisfaction. The attention to detail in both the product preparation and the logistical coordination was impressive. This level of service and product assurance makes future purchases highly likely. Everything was managed smoothly without any complications or delays, which is crucial for industrial components. A trustworthy supplier for critical power system components.
Xcellent service from start to finish. The ordering process was straightforward, and the communication was clear. Regarding logistics, the shipment arrived ahead of the estimated schedule, which was a very pleasant surprise. The packaging was exceptionally robust and secure, with no signs of damage whatsoever. Every component was individually protected, demonstrating great care in handling. The quality of the unit is immediately apparent upon inspection. The construction feels solid and premium, with precise machining and high-grade materials used throughout. It has a substantial, reliable feel that inspires confidence for its application in a demanding industrial environment. The overall finish and attention to detail are impressive. Customer service deserves special mention. The support team was responsive and knowledgeable, promptly answering my pre-shipment inquiries. They provided clear documentation and were proactive in providing tracking information. The post-delivery follow-up was also appreciated, ensuring everything was received in order. While I cannot comment on the technical performance yet, as it is awaiting installation, the initial impressions based on physical inspection and the professionalism of the entire transaction are overwhelmingly positive. The combination of efficient logistics, apparent top-tier build quality, and supportive service makes this a highly satisfactory procurement experience. I would certainly consider this supplier for future needs based on this interaction alone. The entire process felt smooth, reliable, and professional.
The delivery was incredibly fast, arriving well ahead of schedule. The packaging was exceptionally secure, with no signs of damage to the robust outer crate. Unpacking revealed the unit itself was impeccably protected with custom foam inserts. Regarding quality, the construction feels solid and premium; the materials and finish are exactly as specified and appear to be of high-grade industrial standard. The communication from the service team was top-notch. They were proactive, providing clear tracking updates and promptly answering my pre-delivery queries. Overall, a very smooth and professional transaction from start to finish. The logistical efficiency and attention to detail in both service and packaging are truly commendable. This level of care in handling such critical equipment is exactly what one hopes for in the industrial sector.
Unbelievably fast delivery! The order arrived much sooner than the estimated timeframe, which was a fantastic surprise. The packaging was exceptionally secure and professional, with every component individually protected. Regarding the quality, the construction feels incredibly robust and precise; it clearly meets the high industrial standards mentioned. The service team was outstanding, providing clear communication and prompt responses to my pre-shipment inquiries. The overall experience from ordering to unboxing was seamless and highly professional. I am thoroughly impressed and would not hesitate to recommend this supplier for such critical industrial components. The attention to detail in both the product presentation and customer support is truly commendable.
I must highlight the impressive logistics involved in delivering this ACB air circuit breaker. The shipping was remarkably fast and well-coordinated, ensuring the item arrived in perfect condition without any delays. Regarding quality, the build of this high voltage circuit breaker is exceptional; it feels robust and durable, clearly designed to withstand industrial demands. The service provided by the team was outstanding—they were responsive, professional, and addressed all my queries promptly. Overall, a seamless experience from start to finish.
Comprehensive and commendable experience from start to finish. Communication was clear and prompt, ensuring all my queries were addressed efficiently. Delivery was remarkably fast, arriving well ahead of schedule without any delays. The packaging was secure and professional, protecting the items impeccably during transit. Product quality appears outstanding, with robust construction and precise finishing that meets high industrial standards. Customer support was exceptionally helpful, providing detailed assistance whenever needed. Overall, a very reliable and satisfying purchase that I would highly recommend to others in need of such equipment.
Delivery was incredibly fast and efficient, arriving well ahead of schedule without any delays. The packaging was secure and protected the item perfectly during transit. Quality-wise, the product appears robust and well-manufactured, meeting high standards for industrial applications. Customer service was responsive and helpful, promptly addressing my inquiries with clear communication. Overall, a very satisfactory experience from start to finish.