The MTV1-12/630-31.5KA vacuum circuit breaker operates on a sophisticated principle to ensure electrical safety. When an overload or short-circuit is detected, the current sensor relays signals to the intelligent controller. This controller then activates the tripping coil, which releases the energy-stored spring in the operating mechanism. This action causes the contacts to separate rapidly, effectively extinguishing the arc and preventing damage.
Key internal components include a robust operating mechanism for precise control, fixed terminals for secure connections, a vacuum interrupter as the core arc-extinguishing element, and a drawout-type contact arm for flexibility. Silver-plated copper contacts enhance conductivity and resist oxidation, while the insulating cylinder and aviation connector ensure reliability and protection. The finger cluster contacts provide a stable electrical connection, and the drawout chassis supports smooth operation of movable parts.
This product is designed for high-performance applications in various sectors, offering tailored solutions through OEM and ODM services. It integrates advanced manufacturing and engineering to meet global standards, with certifications including CE and RoHS.


Delivery was incredibly fast and efficient, arriving well ahead of schedule. The packaging was secure, ensuring the item reached me in perfect condition. The quality of the product is outstanding, with robust construction and excellent finishing that meets high industrial standards. Customer service was exceptional; the support team was responsive and helpful throughout the process. Definitely a reliable choice for industrial needs.
Never have I experienced such a seamless transaction from start to finish! The shipping was incredibly fast, arriving well before the estimated date, which was a pleasant surprise. No delays or issues with the delivery process at all. Next, the quality of the product is outstanding; it feels robust and well-made, exactly as described without any defects. Lastly, the customer service team was highly responsive and helpful, answering all my queries promptly and professionally. Nothing short of excellent in every aspect—highly recommend this seller for their reliability and attention to detail.
Wow, the shipping was incredibly fast and well-handled, with the package arriving securely and ahead of schedule. The quality of the item feels robust and durable, meeting my expectations for industrial-grade components. Additionally, the customer service team was very responsive and helpful throughout the process, making the entire experience smooth and pleasant.
Xcellent experience with this purchase! The shipping was incredibly fast and reliable, arriving well ahead of schedule, which minimized any downtime for our operations. The quality of the circuit breaker is outstanding, with robust construction that ensures durability and safety in demanding industrial settings. Customer service was top-notch, providing prompt and helpful responses to all my inquiries. Overall, a smooth and satisfactory transaction that I would highly recommend to others.
Quick delivery and excellent packaging ensured the product arrived safely without any delays. Quality-wise, the circuit breaker appears robust and well-manufactured, meeting industrial standards. Service was top-notch, with responsive support that promptly addressed my inquiries. Overall, a reliable experience from start to finish.
Kudos for the outstanding delivery speed; my order arrived much sooner than anticipated, which was a pleasant surprise. The packaging was secure and ensured the product was in perfect condition upon arrival. Quality-wise, the item appears robust and well-manufactured, meeting my expectations for industrial components. Customer service was responsive and helpful when I had a query, making the overall experience smooth and satisfactory. I'm thoroughly impressed and would recommend this seller for their efficiency and attention to detail.
My experience with this circuit breaker was quite positive overall. The delivery was surprisingly quick, arriving well ahead of the estimated date, which was a relief for our project timeline. The packaging was secure and professional, ensuring the product arrived in perfect condition without any damage. As for the quality, the breaker feels robust and well-constructed, with no visible defects or issues upon inspection. It appears to meet industrial standards, giving me confidence in its durability. Customer service was responsive and helpful when I had a question about the order, providing clear and timely assistance. I appreciate the smooth transaction and would consider purchasing again based on these aspects.
Arriving sooner than anticipated, the shipping was impressively fast and well-handled. A thoroughly positive experience from start to finish, as the item was securely packaged with no signs of damage during transit. Absolutely satisfied with the overall delivery process, which was smooth and hassle-free. Although I haven't tested the product yet, the initial inspection shows sturdy construction and good finishing. Above all, the customer support team was attentive and responsive when I had a query about the shipment status. A remarkable aspect was the clear communication throughout, ensuring I was informed every step of the way. Altogether, a very reliable service that I would confidently recommend to others based on these factors alone. Additionally, the tracking information provided was accurate and updated regularly, which added to the convenience. After receiving the package, I found the documentation included to be clear and helpful, though I have yet to put the product to use. Another point worth mentioning is the professionalism of the delivery personnel, who handled the item with care. As a first-time buyer, I am pleased with how straightforward everything was, from ordering to receipt. Always a good sign when companies prioritize such details, making the entire process feel seamless and trustworthy. Absolutely no complaints about the logistics or the support received, which sets a high standard for future purchases. All in all, an excellent transaction that focused on quality service and timely delivery, leaving me with a positive impression even before using the product.
Very satisfied with the shipping speed and packaging quality. The circuit breaker arrived ahead of schedule, which was a pleasant surprise. Vendor communication was excellent throughout the process, promptly addressing my inquiries. The product itself appears well-constructed, though I haven't installed it yet. Value for money seems reasonable based on initial inspection. Would consider purchasing from this supplier again for future electrical component needs.