PowerBull provides high-quality, cost-effective complete 10kV & 35kV Vacuum Circuit Breaker (VCB) products and core components supply solutions, dedicated to helping VCB manufacturers, switchgear factories and power equipment brands enhance product performance, optimize cost structure, and strengthen long-term market competitiveness for power distribution substations, industrial power systems, mining and infrastructure applications.

We rely on strict quality control, mature supply chain management and professional technical support to become your reliable long-term partner, helping you improve product breaking capacity, insulation safety, operation stability and profitability.

Our Complete VCB Products

- 10kV Indoor Vacuum Circuit Breaker (Fixed & Handcart Type)

- 35kV High-Voltage Vacuum Circuit Breaker

- Spring Operating Mechanism VCB

- Permanent Magnet Operating Mechanism VCB

- Indoor/Outdoor VCB for Distribution Switchgear

- Special VCB for Frequent Operation & Protection Scenarios

Our Core VCB Components

- Vacuum Interrupter (Vacuum Bottle) – High vacuum tightness, strong arc extinguishing performance, long mechanical life, stable breaking capacity

- Fixed & Moving Contact System – CuCr alloy material, anti-welding, low arcing loss, reliable current conduction

- Operating Mechanism (Spring/Permanent Magnet) – Stable energy storage, accurate opening/closing action, long service life, low failure rate

- Insulation Support Parts – High-strength epoxy resin or ceramic insulators, excellent insulation performance, anti-aging and high reliability

- Insulation Pull Rod & Transmission Parts – Stable mechanical transmission, high insulation strength, safe and durable

- Bellows & Sealing Components – High precision, good elasticity, maintain long-term vacuum sealing

- Shield Cover & Electric Field Uniformity Parts – Improve insulation distribution, prevent metal vapor pollution, extend service life

- Conductive Rod & Connection Parts – High conductivity, low temperature rise, good thermal stability

- Opening/Closing Coil & Control Module – Sensitive action, stable control, compatible with automatic control systems

- Chassis Truck & Structural Parts – Precise positioning, reliable interlock, easy installation and maintenance

- Safety Interlock & Protection Devices – Complete interlock design, in line with international high-voltage safety standards

Value to VCB Manufacturers

- Stable and certified component quality

- Optimized cost structure for better price competitiveness

- Reliable supply chain and on-time delivery

- Professional technical support and quality assurance

- Help you produce safer, more reliable and more competitive 10kV & 35kV VCB products

PowerBull – Your trusted component partner for vacuum circuit breaker manufacturing success.