High Voltage 12kv Indoor Vacuum Circuit Breaker Vcb

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Model NO.: ZN63(VS1)
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: Vcb
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB
• Certification: CE, CCC, RoHS
• Transport Package: Carton or Wooden Crate
• Trademark: Mingtuo
• Origin: Zhejiang, China
• HS Code: 8536200000
• Production Capacity: 5000pieces/Year

Product Description

 

Product Description

 FIXED TYPE

working principle:


     When an overloaded circuit or short-circuit current occurs, the current sensor transmits the collected current signals to the intelligent controller.

      The intelligent controller then issues a trip command to energize the tripping coil, which releases the energy-stored spring in the operating mechanism.

     This causes the contacts to rapidly separate,Create a vacuum environment within the vacuum tube. extinguishing the arc.
 

HANDCART TYPE

The difference between handcart type and fixed type

      Handcart-type vacuum circuit breaker: Installed on the handcart cabinet, it has a chassis cart and contact arm, allowing for convenient movement and extraction. This design makes the handcart-type circuit breaker more flexible during maintenance and inspection.
      Fixed-type vacuum circuit breaker: Installed directly in the fixed cabinet, without a chassis cart and contact arm, thus unable to move.

HANDCART TYPE

 

Product Parameters

Detailed Photos

 

        Internal constitutions:

 

1. Operating Mechanism→  Mechanical device controlling the opening and closing of the circuit breaker

2. Terminals (Fixed Type) → Electrical interface for fixed connections

3.  Vacuum Interrupter → Core arc-extinguishing component containing contacts and ceramic insulator

4. Contact Arm (Drawout Type)→  Movable current-carrying component in drawout circuit breakers

5. Silver-Plated Copper Contacts→  Enhances conductivity and oxidation resistance

6. Drawout Chassis→  Frame structure supporting the movable parts of drawout circuit breakers

7. Insulating Cylinder→  Insulating housing encapsulating the vacuum interrupter

8. Aviation Connector→  High-reliability quick-disconnect interface

9. Finger Cluster Contacts→  Multi-finger contact design ensuring stable electrical connection

   
   

   Product size

   

Company Profile

 

Mingtuo Electrical Technology Co., Ltd specializes in plastic case/frame circuit breakers, switch disconnectors, VS1 vacuum breakers, and OEM/ODM services.

Guided by "Technology-Driven Innovation, Quality-First Branding", we integrate advanced manufacturing, expert engineering, and digital management to deliver cutting-edge solutions.
 

Serving power systems, smart infrastructure, transportation, medical, finance, and commercial sectors, our globally certified (CE/ROSH) products are exported to 50+ countries.

 

 

Certifications

 

 

Packaging & Shipping

 

 

FAQ

Q: What is the product voltage/current range? What's the breaking ability?
A:Please consult customer service for details
Q: What is the MOQ? Do you support sample ordering?
A:The minimum order quantity is 1 set, which can support sample ordering
Q: How long is the warranty period? How to apply for warranty?
A: Product warranty for one to two years. Apply directly to customer service
Q: Do you have CE, RoHS, UL and other certifications? Can you provide a certificate?
A: We have CE and RoHS certificates and can provide certificates
Q: Does the price include tax/shipping?
A: The price does not include shipping/tax.
Q: What famous clients or project cases have you worked with?
A:State Grid of China, Chint Group, Xiaomi Group