VACUUM CIRCUIT BREAKER
Available in versatile specifications: 630A, 1250A, 1600A, 2000A, 2500A, 3150A, and 4000A
Rated Voltage Options: 12kV, 24kV, 35kV
Model: ZN63(VS1) This series of vacuum circuit breakers serves as ideal solutions for rated voltage isolators Ranging from 12kV to 35kV, this 3-phase switching device isperfectly suited for indoor grid equipment, industrial settings, and mining enterprises,offering power equipment control and protection unit functionalities. Thanks to its exceptional advantages, this vacuum circuit breaker is adept for current requirements with a rated frequent operation, or multiple short-circuit current interruptions.With an integral layout, the breakers boast a matured spring operation mechanism, ensuring a simple structure and unwavering reliability.The thoughtful design provides clarity to every component, facilitating functional units for streamlined maintenance.
ZN63(VS1) vacuum circuit breaker is designed for installation within the switch and can be fixedor removed as needed. Offering rated current capacities from 630A to 4000A and short-circuit current ratings from 20KA to 31.5KA,this circuit breaker is a real serialized masterpiece.Highlighting Core Features
Vacuum Arc Extinguishing Technology
Utilizes cutting-edge, high-performance
vacuum arc extinguishing chambers, offeringpowerful breaking capacity, no explosion risks, and is both environmentally friendly and pollution-free. The rated short-circuit breaking currentcan reach an impressive
20kA to 31.5kA, depending on the model. Innovative Modular Design Equipped with a fast spring energy storage operating mechanism and a remarkable mechanical lifespan of 10,000 to 30,000
cycles.
It can be customized with manual or
electric controls to support remote automation operations. Advanced Safety Protection Its fully enclosed insulation structure boasts a protection level of IP3X,
ensuring
dustproof and moisture-proof capabilities. Enjoy enhanced durability for reliable performance.Trust the VCB High Voltage Circuit Breaker to deliver unparalleled protection and efficiency for your power systems.
Incorporating advanced built-in mechanical interlocking systems, this product is expertly engineered to ensure maximum safety by preventing any unintended operations.
Standards
Meticulously designed to comply with both international and domestic standards, including the following renowned specifications: GB/T 1984 and IEC 62271-100.
Technical Data for Opening and Closing Coils: Explore the meticulous craftsmanship behind our high-performance coils, crafted for precision and efficiency. These coils are engineered to provide seamless operation, ensuring optimal function and longevity of your VCB High Voltage Circuit Breaker.
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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 |
Intricate Internal Structures:
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Sophisticated Operating Mechanism→ A precision-engineered mechanical device for seamless circuit breaker operation and control.
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Fixed Terminals → Robust electrical interfaces for secure and permanent connections.
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Advanced Vacuum Interrupter → The pivotal component for efficient arc-extinguishing, featuring durable contacts and a protective ceramic insulator.
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Dynamic Contact Arm (Drawout Type)→ A versatile, movable element facilitating reliable current flow in drawout circuit breakers.
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Premium Silver-Plated Copper Contacts→ Designed to significantly enhance electrical conductivity and resist oxidation for long-lasting performance.
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Innovative Drawout Chassis→ A robust frame structure that securely supports all movable components in drawout circuit breakers.
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High-Performance Insulating Cylinder→ A protective insulating housing that completely encapsulates the vacuum interrupter for optimal safety.
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Reliable Aviation Connector→ A high-reliability interface enabling quick and secure disconnection, perfect for fast-paced environments.
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Precision Finger Cluster Contacts→ Designed with a multi-finger approach to ensure stable and consistent electrical connections.
Comprehensive Array of Internal Components
Extensive Range of Internal Parts

*Please note that the images provided are intended solely for reference purposes. For comprehensive and precise details, we warmly invite you to reach out to our dedicated customer service team.
Outer Packaging:
Our packaging solution employs robust wooden boxes to ensure optimal mechanical strength and protection.
These wooden crates are ideal for housing large circuit breakers and are perfectly suited for international shipping needs.
Inner Packaging:
To shield the circuit breaker from potential harm, we wrap it meticulously with protective buffers like foam pads, bubble film or pearl cotton, effectively preventing vibrations and collisions.
For more extensive circuit breakers, the packaging box can feature a layered design. Accessories including manuals, tools, and spare partsare neatly organized on the upper layer.
Our Production Line
Transport
Domestic Transportation:
For destinations within China, with a designated freight forwarder, our products are swiftly delivered to your chosen location using road transportation or domestic express services post-production.
International Transport:
For smaller consignments requiring expedited delivery to an international destination, we engage the renowned international couriers,
DHL, FEDEX, and UPS.
Sea Freight/Air Freight:
In scenarios involving larger shipments where timelines are more flexible, sea freight is our preferred choice. We collaborate with a reliable freight companyto arrange truck pickup, ensuring the goods reach the designated port for warehousing.Subsequently, the goods embark on a sea journey to the customer's specified port. Upon arrival, customers can collect their goods using a bill of lading.
Mingtuo Electric Zhejiang Mingtuo Electric Technology Co., Ltd. not only holds a prominent and strategic position in the domestic market but is also dynamically expanding its footprint across international borders. Our products are integral to the construction, industrial, and energy sectors, earning the trust and preference of numerous prestigious engineering projects.
The company adheres to the principle ofcustomer first, quality first, service first, reputation first,and continually embraces the philosophy of innovation and development. The company boasts robust technical expertise, cutting-edge production capabilities, and extensive experience in research and development, establishing itself as a beacon of professionalism and technological leadership. It is equipped with a comprehensive suite of state-of-the-art production, testing, and inspection equipment in China.
FAQ
Q: What is the product voltage/current range? What's the breaking ability?
A: For specific details on product voltage, current range, and breaking capability, please reach out to our customer service team for personalized assistance.
Q: What is the MOQ? Do you support sample ordering?
A: Our minimum order quantity is just 1 set, and we are pleased to offer support for sample orders to suit your needs.
Q: How long is the warranty period? How to apply for warranty?
A: We offer a product warranty ranging from one to two years. Warranty claims can be made directly through our responsive customer service team.
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 readily able to provide these documents upon request.
Q: Does the price include tax/shipping?
A: Please note that prices are exclusive of shipping and tax charges.
Q: What famous clients or project cases have you worked with?
A: We are proud to have collaborated with esteemed clients such as the State Grid of China, Chint Group, and Xiaomi Group.