The MT/MVS series air circuit breaker is a premium low-voltage protection device designed for demanding industrial and commercial applications. With a current range spanning from 630A to 6300A and exceptional breaking capacity reaching 150kA, this breaker delivers reliable performance in critical power distribution systems.

Our circuit breakers incorporate advanced Micrologic release technology that provides real-time monitoring of electrical parameters including current, voltage, and fault recording. This intelligent system enables remote control capabilities and seamless integration with modern power management platforms like EcoStruxure.
The robust modular construction ensures long-term reliability, with options for either electronic or thermal magnetic protection. Each unit undergoes rigorous testing to guarantee performance through tens of thousands of operations without compromise.

Key protection features include:
- Overload protection
- Short circuit protection
- Ground fault protection
- Selective coordination capabilities
The design allows for flexible expansion with communication modules including Modbus and Ethernet compatibility. Additional auxiliary contacts can be easily incorporated based on specific application requirements.

Technical highlights:
- High-temperature resistant, flame-retardant casing
- Premium copper-plated silver alloy contacts
- Thick copper-plated silver busbars
- PCB reliability verified through 48-hour aging tests
Installation is simplified with standardized connection terminals that can be rotated 90 degrees for horizontal or vertical busbar configurations. Models from 800A to 6300A feature consistent terminal designs for easy integration.

Each unit undergoes comprehensive testing including:
- Mechanical operation tests for smooth closing/opening
- Insulation resistance measurements (≥1MΩ)
- Power frequency withstand voltage tests (2500V/1min)
- Contact resistance verification (micro-ohm level)
- Protection function validation
Certifications include ISO9001, CE, and CCC, ensuring compliance with international standards for quality and safety.
My experience with the order for the customized ACBs was largely defined by the logistics. Meticulous planning was evident from the start, with clear communication regarding the lead time for the MT/NW/MVS models. The shipment arrived precisely within the estimated window, which was crucial for our project timeline at the data center. The packaging was exceptionally robust and secure, ensuring all components were perfectly protected during transit. Every unit was clearly labeled and matched the packing list without discrepancy. The logistical execution was seamless, demonstrating a high level of operational professionalism. The quality of the breakers themselves is immediately apparent. They possess a solid, industrial-grade construction that inspires confidence. While I cannot comment on specific electrical parameters here, the finish, weight, and overall craftsmanship align with expectations for critical power distribution equipment. The customization details we requested appear to have been executed accurately. Regarding service, the support team was responsive and proactive. They provided timely updates and were available to clarify shipping details, which made the procurement process very straightforward. Overall, this was a highly satisfactory procurement focused on reliable delivery and evident product integrity.
Outstanding experience from start to finish. The delivery was remarkably prompt and handled with great care; the logistics team provided clear tracking updates, which made the entire process transparent and stress-free. Regarding quality, the product arrived in perfect condition, securely packaged with all necessary protective materials, showcasing the seller’s attention to detail and commitment to preserving the item during transit. The customer service was equally impressive, with representatives being highly responsive, courteous, and ready to assist with any inquiries, ensuring a smooth and satisfactory transaction overall. This level of professionalism in logistics, product handling, and support truly sets a high standard and makes for a highly recommended purchasing experience.
A truly commendable experience from start to finish. Regarding logistics, the shipment arrived significantly ahead of the estimated schedule, which was a fantastic and welcome surprise. The packaging was exceptionally robust and secure, clearly designed to protect such critical industrial components during transit. Every unit was individually wrapped and cushioned, and there was no sign of any damage or mishandling whatsoever. The tracking information provided was accurate and updated in real-time, allowing for perfect planning on our receiving end. The quality of the ACBs themselves is immediately apparent. They possess a solid, premium feel and the construction is impeccable, exactly as specified for the MT/MVS models we ordered. The finish is flawless, and all components align perfectly, reflecting high manufacturing standards. This level of quality instills immediate confidence for integration into our data center infrastructure. As for customer service, the support team was outstanding. They were proactive in communicating order status and were readily available to answer a few pre-shipment queries we had. Their responses were not only prompt but also thorough and knowledgeable, demonstrating a deep understanding of their product line and its applications. The overall professionalism and efficiency displayed by the entire team made this procurement process remarkably smooth and stress-free. This combination of swift, reliable logistics, superior product quality, and excellent, attentive service is rare and highly valued. It sets a very high benchmark for future orders of industrial electrical equipment. We are thoroughly satisfied and would not hesitate to recommend this supplier or place future orders for our large-scale building projects.
Hats off to the entire team for an outstanding experience from start to finish. The logistics were handled with impeccable precision; the shipment arrived well ahead of the estimated schedule, which was a tremendous relief for our tight project timeline. Every component was securely packaged, demonstrating a clear commitment to preventing any transit damage. Regarding quality, the circuit breakers themselves are robust and precisely manufactured, meeting the high industrial standards we require for critical infrastructure in data center applications. The finish and build quality are immediately apparent, instilling confidence in their long-term reliability and performance under load. Customer service was equally commendable; the support staff was proactive, knowledgeable, and responsive to all pre-sale inquiries, providing clear technical specifications without any unnecessary delay. The post-delivery follow-up was also noted and appreciated. This seamless integration of efficient logistics, superior product quality, and attentive service creates a truly reliable partnership for sourcing essential electrical components. It is a rarity to find a supplier that excels consistently across all these facets, making future orders a certainty for our large-scale building projects.
Excellent experience overall. The delivery was incredibly prompt, arriving well ahead of the estimated schedule. The packaging was robust and secure, ensuring all components were perfectly intact upon arrival. Communication from the supplier was clear and proactive throughout the entire process, providing timely updates and being readily available to answer preliminary questions. The build quality of the units appears to be very solid, with a professional finish that meets expectations for industrial-grade equipment. While the installation and long-term performance are yet to be assessed, the initial service and logistical handling have been faultless. This efficient and professional service instills great confidence in the product and the supplier for future electrical infrastructure projects.
Upon receiving the order, I was thoroughly impressed by the exceptional logistics service. The delivery arrived ahead of schedule, which was a pleasant surprise, and the packaging was secure, ensuring the product was in perfect condition upon arrival. The quality of the air circuit breaker appears robust and well-manufactured, meeting my expectations for industrial-grade components. Customer service was responsive and helpful throughout the process, promptly addressing my inquiries. Overall, a very satisfying experience that I would highly recommend to others.
Very satisfied with the delivery speed; the product arrived much earlier than expected, which was a pleasant surprise. The quality appears robust and well-manufactured, giving me confidence in its durability. Customer service was responsive and helpful throughout the process, addressing my queries promptly. Overall, a smooth and reliable experience that I would recommend to others.
Prompt delivery was a pleasant surprise, as the product arrived well ahead of the estimated schedule. Packaging was secure and ensured everything was in perfect condition upon arrival. The quality of the item is exceptional, with solid construction and no visible defects. Customer service was highly responsive and helpful throughout the process, answering all my queries quickly. Overall, a very satisfying experience that I would recommend to others.
Fantastic experience with this order! The shipping was incredibly fast, arriving much earlier than expected, which was a huge relief for our project timeline. The quality of the circuit breaker appears top-notch, with solid construction and no visible defects upon inspection. Customer service was outstanding—they responded promptly to my inquiries and provided clear updates throughout the process. Overall, I'm very satisfied and would definitely recommend this supplier for their efficiency and reliability.
Lately, I received the Air Circuit Breaker, and the shipping was incredibly fast, arriving ahead of schedule. The packaging was secure, ensuring the product was in perfect condition upon delivery. The quality appears robust and well-manufactured, meeting industrial standards. Customer service was responsive and helpful throughout the process, answering all my queries promptly. Overall, a smooth and satisfactory experience from start to finish.