VACUUM CIRCUIT BREAKER
630A/1250A/1600A/2000A/2500A/3150A/4000A
12kV/24kV/35kV
ZN63(VS1) This series of vacuum circuit breakers is crafted for rated voltage isolators, operating at 12kV-35kV. These sophisticated 3-phase switch devices areideal for indoor grid equipment, and are perfect for industrial andmining enterprises power equipment control and protection units. Thanks to its unique advantages, our vacuum circuit breaker products meet the current requirements for frequent operation and multiple open short-circuit currents.With an integrated layout structure, these breakers employ a mature spring operation mechanism with a simple structure and reliable performance.The thoughtful and reasonable construction makes every point clear, facilitating functional units for streamlined maintenance.
The ZN63(VS1) vacuum circuit breaker can be installed within the switchgear as fixedor can be drawn out. It accommodates current ratings from 630A - 4000A with short-circuit current ratings ranging from 20KA-31.5KAin a truly serialized form.Core Features
Vacuum arc extinguishing technology
Our advanced high-performance
vacuum arc extinguishing chambers ensure strong breakingability, with no risk of explosion, making it environmentally friendly and pollution-free. The ratedshort-circuit breaking current
can reach an impressive 20kA~31.5kA (model dependent). Modular design The spring energy storage operating mechanism features
fast opening and closing speeds with a mechanical lifespan between
10000 to 30000 cycles. For added flexibility, it can be equipped with
manual or electric control, enabling support for remote automation operation. Safety protection
The fully enclosed insulation structure offers a protection level of IP3X, ensuring it is
dustproof and moisture-proof. Additionally, built-in mechanical interlocking safeguards against misoperation,providing peace of mind.
This robust design is perfect for those seeking reliability and longevity in their electrical systems.
Standards
Our Robust Vacuum Circuit Breaker proudly adheres to a comprehensive range of international and domestic standards, ensuring top-tier quality and safety. GB/T 1984 and IEC 62271-100.
Technical Data for Opening and Closing Coils: Delve into the meticulously crafted specifications of our state-of-the-art opening and closing coils, designed for supreme efficiency and reliability. These technical parameters ensure that our Robust Vacuum Circuit Breaker operates at peak performance, delivering unparalleled precision and safety in every use.
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Closing Coil |
Opening Coil |
Remarks |
Rated Operating Voltage(V) |
DC220,DC110
AC220,AC110 |
DC220,DC110
AC220,AC110 |
Opening coil current must not be less than 30% of the rated
operating voltage. |
Coil Power(W) |
245 |
320 |
Normal Operating Voltage Range |
85% - 110% of Rated Voltage |
85%-120% of Rated Voltage |
Innovative Internal Constitutions:
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Advanced Operating Mechanism→ A sophisticated mechanical device expertly orchestrating the seamless opening and closing of the circuit breaker.
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Fixed Type Terminals → Reliable electrical interface meticulously designed for secure fixed connections.
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State-of-the-Art Vacuum Interrupter → The essential core component for arc-extinguishing, featuring expertly crafted contacts and a premium ceramic insulator.
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Drawout Type Contact Arm→ Dynamic, movable component ensuring smooth current flow in drawout circuit breakers.
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High-Quality Silver-Plated Copper Contacts→ Brilliantly enhances conductivity while offering superior oxidation resistance.
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Versatile Drawout Chassis→ Robust frame structure designed to support the movable parts of drawout circuit breakers with flexibility and strength.
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Durable Insulating Cylinder→ Protective insulating housing that securely encapsulates the vacuum interrupter.
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Reliable Aviation Connector→ A highly dependable quick-disconnect interface providing maximum reliability.
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Precision Finger Cluster Contacts→ Ingenious multi-finger contact design ensuring consistent and stable electrical connections.
Sophisticated Internal Parts
Sophisticated Internal Parts

*Please note, the images provided are solely for illustrative purposes. For precise details and further information, our dedicated customer service team is ready to assist you.
Outer packaging:
Our outer packaging ensures maximum protection, featuring strong wooden boxes that are meticulously crafted to deliver exceptional mechanical strength and durability.
These wooden crates are ideally suited for accommodating large circuit breakers, particularly when international transportation is required.
Inner packaging:
We envelop the circuit breaker in layers of protective buffer materials, such as foam pads, bubble film or pearl cotton , ensuring optimal protection against any potential vibrations and collisions.
For the larger circuit breakers, the packaging design incorporates a sophisticated layered approach. Accessories, including manuals, tools, and spare parts, are strategically placed on the upper layer for easy access and organization.
Our production line
Transport
Domestic transportation
In instances where a designated freight forwarder is within China, we seamlessly transport the products to the specified location utilizing road transportation or domestic express delivery services, executed promptly after production completion.
International transport
When the volume of goods is minimal and timing is critical, requiring swift transport to an internationally designated location, we entrust the task to one of the top three international express delivery giants
DHL, FEDEX, or UPS
Sea freight/air freight
For significant quantities where time constraints are relaxed, sea freight becomes the choice. We select an appropriate freight company, which expertly coordinates the collection of goods by truck, transporting them to the designated port for warehousing. Ultimately, the goods are shipped by sea to the customer's specified port, where the customer retrieves them using a bill of lading.
Mingtuo Electric Mingtuo Electric has established itself as a pivotal force in the domestic market, while steadily carving a niche in the global arena. Our diverse range of products is extensively utilized across construction, industrial sectors, and energy fields, earning the unwavering trust and admiration of numerous prestigious engineering projects around the world.
The company adheres to the principle of prioritizing customers, ensuring unmatched quality, delivering exceptional service, and maintaining an esteemed reputation. Relentlessly pursuing innovation and development, Mingtuo Electric has amassed formidable technical prowess, coupled with cutting-edge production technology and rich experiential knowledge. in research and development. We pride ourselves on professionalism and being at the forefront of technological advancement. Our facilities boast the most sophisticated production, testing, and inspection equipment available in China.
FAQ
Q: What is the product voltage/current range? What's the breaking ability?
A: For detailed specifications, we encourage you to reach out to our customer service team.
Q: What is the MOQ? Do you support sample ordering?
A: The minimum order quantity is one complete set, and we are pleased to offer support for sample orders.
Q: How long is the warranty period? How to apply for warranty?
A: Our products come with a warranty ranging from one to two years. Please contact customer service directly for warranty applications.
Q: Do you have CE, RoHS, UL, and other certifications? Can you provide a certificate?
A: Yes, we possess CE and RoHS certifications, and are ready to provide these certificates upon request.
Q: Does the price include tax/shipping?
A: Please note, the listed price excludes shipping and tax charges.
Q: What famous clients or project cases have you worked with?
A: Our esteemed clientele includes the State Grid of China, Chint Group, and Xiaomi Group, among others.