Electronic Components Supplier | Transformers, Inductors, Inverters
Vacuum Circuit Breakers
VCB ZN63(VS1)-12 630A Indoor High Voltage Switchgear Circuit Breaker 20KA Breaking Capacity 12KV Three Phase Vacuum
VD4 Type Indoor High Voltage 3 Phase Vacuum Circuit Breaker
12kV 630A 1000A 1250A 1600A 2000A 2500A 3150A Indoor High Voltage Intelligence Vacuum Circuit Breaker
24kV SF6 Gas Circuit Breaker Fixed Type 630A Vacuum Ckt Breaker With Insulated Cylinder For High Voltage Power Distribution
Vacuum Circuit Breaker Pre 6kV 10kV 11kV 12kV Rated Current 630A 1250A
12KV 630A 1250A 1600A 2000A 2500A 3150A VCB VS1 Indoor High Voltage Vacuum Circuit Breaker VS1-12KV/1250-25KA Fixed
ZW32-24kV Outdoor Breaker High-voltage Intelligent Three Phase Pole Mounted Vacuum Circuit Breaker Auto Recloser
100% Original New VD4 CX Series 12kv Vacuum Circuit Breaker Models VD4/CX 12.06.25 12.12.25 12.16.25
ZW43-12 Outdoor AC Vacuum Circuit Breaker 24kV, 35kV VCB
Mv Hv 3Phase Vacuum Circuit Breaker Zw32 10KV Outdoor Vacuum Switch
Durable ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker for Power Distribution
36kV 40.5kV SF6 Gas Circuit Breaker Indoor High And Medium Voltage AC Gas Circuit Breaker Used For High Voltage Switchgear
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.