Electronic Components Supplier | Transformers, Inductors, Inverters
Vacuum Circuit Breakers
VS1 ZN63-12 12 KV Indoor High Voltage Vacuum Circuit Breaker(VCB) Vs1 Vcb 12kv 24KV
ZN63A(VS1)-12 50Hz 630A 1250A 1600A Fixed Type Indoor High Voltage Vacuum Circuit Breaker for Transformer Protection
35kV 33kV Outdoor VCB High And Medium Voltage Withdrawable Recloser Vacuum Circuit Breakers
630A High-Power Outdoor Circuit Breaker V1-12/630-25 Vacuum Circuit Breaker 12KV High Voltage Circuit Breaker 20KA Breaking
High And Medium Voltage 630A 1250A Vacuum Circuit Breakers 12kV 11kV 10kV VCB Indoor VD4 Vacuum Circuit Breakers
11kV 12kV 24kV Medium & High Voltage Indoor Standard Vacuum Circuit Breaker with Quality Assurance
Outdoor Vacuum Circuit Breaker Certified Recloser 3 Phase Auto Recloser
Indoor ZN63 Series Withdrawable Vacuum Circuit Breaker For Various Metal Armored Center Cabinets
Source Outdoor Vacuum Circuit Breaker Primary and Secondary Fuse Complete Set of Column Switches
Outdoor VCB 35kV High Voltage Withdrawable Recloser Vacuum Circuit Breakers
VCB ZN63(VS1)-12 630A High Voltage Switchgear Indoor Vacuum Circuit Breaker 630A VCB
11KV 12KV Circuit Breaker Vacuum Circuit Breaker 3 Pole VCB Fixed Type Vcb For High Voltage Switchgear Electrical Panel
Overview of Vacuum Circuit Breakers
Vacuum circuit breakers (VCB) are widely used in medium-voltage electrical systems for reliable switching and protection. They utilize vacuum interrupters to extinguish arcs, ensuring safe, efficient, and long-lasting performance.
VCBs are commonly applied in power distribution networks, substations, industrial plants, and renewable energy systems, offering superior reliability compared to traditional breakers.
How Vacuum Circuit Breakers Work
Vacuum circuit breakers interrupt current by separating contacts inside a vacuum chamber.
| Component | Function |
|---|---|
| Vacuum Interrupter | Extinguishes arc in vacuum |
| Moving & Fixed Contacts | Open/close electrical circuit |
| Operating Mechanism | Controls switching operation |
| Insulation Housing | Provides electrical insulation |
Types of Vacuum Circuit Breakers
- Indoor VCB – Used in switchgear panels
- Outdoor VCB – Suitable for substations
- Fixed Type VCB – Permanent installation
- Withdrawable Type VCB – Easy maintenance and replacement
Advantages of Vacuum Circuit Breakers
- High Arc Quenching Efficiency
- Long Electrical and Mechanical Life
- Low Maintenance Requirements
- Environmentally Friendly (No Gas or Oil)
- Reliable Operation in Medium Voltage Systems
Company Profile
Luoyang Datang Energy Technology Co., Ltd. is a high-tech enterprise integrating R&D, manufacturing, and supply of power equipment and renewable energy solutions. Specializing in transformers, new energy components, distribution cabinets, and inverters, we have expanded our portfolio to include solar power systems, energy storage solutions, and air source heat pumps. With technological innovation as our core, we focus on creating high-reliability and high-performance power and energy efficiency solutions to serve global customers. Through a strict quality control system and international standard certification, we continuously deliver excellent products that empower our customers to build safe, stable, and sustainable power systems.
Payment Methods for Vacuum Circuit Breakers
L/C, T/T, Western Union, Paypal, Credit Card etc.
Shipment of Vacuum Circuit Breakers
Once payment is received, by sea, by air, or by express as soon as possible.
FAQs of Vacuum Circuit Breakers
1. What is a vacuum circuit breaker?
A breaker that uses vacuum to extinguish electrical arcs.
2. What voltage levels are VCBs used for?
Typically used in 3.3kV to 36kV systems.
3. Why choose vacuum circuit breakers?
They offer high reliability and low maintenance.
4. Are VCBs better than SF6 breakers?
VCBs are more environmentally friendly and require less maintenance.
5. Where are VCBs used?
In substations, industrial plants, and power distribution systems.