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
https://chinamingtuo.en.made-in-china.com/product/LZgGMNWDLbad/China-Vs1-Zn63-Series-10kv-12kv-20kv-24kv-Handcart-Type-Indoor-Insulated-Vcb-Vacuum-Circuit-Breaker.html?pv_id=1imrpuj8qd4a&faw_id=1imrpun48984
Internal constitutions:
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Operating Mechanism→ Mechanical device controlling the opening and closing of the circuit breaker
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Terminals (Fixed Type) → Electrical interface for fixed connections
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Vacuum Interrupter → Core arc-extinguishing component containing contacts and ceramic insulator
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Contact Arm (Drawout Type)→ Movable current-carrying component in drawout circuit breakers
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Silver-Plated Copper Contacts→ Enhances conductivity and oxidation resistance
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Drawout Chassis→ Frame structure supporting the movable parts of drawout circuit breakers
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Insulating Cylinder→ Insulating housing encapsulating the vacuum interrupter
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Aviation Connector→ High-reliability quick-disconnect interface
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Finger Cluster Contacts→ Multi-finger contact design ensuring stable electrical connection
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.
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
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