VD4 Vacuum Circuit Breaker (UL Standard) Used in primary and secondary power distribution systems, up to 40.5 kV, 5000 A, 95 kA.

The VD4 vacuum circuit breaker is designed and manufactured in accordance with relevant standards such as GB and DL. It utilizes ABB's renowned vacuum interrupter and advanced insulation materials in the poles, along with a reliable operating mechanism. It represents a perfect combination of ABB Group's global R&D, design, and manufacturing technologies, possessing extensive global operating experience and widely used in power distribution in public utilities, industry, transportation, and construction.

The VD4 vacuum circuit breaker employs solid-sealed pole technology to ensure reliable protection of the vacuum interrupter, preventing the effects of mechanical impact, dust, and moisture. Its innovative modular design results in a compact size, spring-loaded operating mechanism, standard anti-pumping function, stable performance, and long service life. Fixed or removable installation is available, with a complete range of secondary accessories and safety interlocking options. Furthermore, its energy-saving and low-carbon manufacturing, operation, and recycling processes are environmentally friendly.

Based on its extremely high reliability, superior performance, and long service life. Circuit breakers can be integrated into your own switchgear or used in maintenance, improvement, and upgrade projects. ABB provides global technical support and rapid response services.

Key Advantages

Utilizes over 35 years of global operating experience with up to 2 million units.

Original German ABB vacuum interrupter and solid-sealed poles, maintenance-free for life.

PT solid-sealed poles using recyclable environmentally friendly insulation materials, with carbon emissions during production only about 40% of epoxy resin.

Online monitoring of circuit breaker temperature, electrical, and mechanical characteristics, allowing for precise control of switch status and reducing customer maintenance time and costs.

Integrated solution, ready to install and easy to maintain, reducing workload for panel manufacturers.

Reduces accident risk, improves response speed, and reduces operation and maintenance costs.

Key Features

Rated voltage range: 4.16kV…40.5kV, with 12kV, 630…4000 A, 25…40 kA solutions available.

Rated current range: 200…5000 A

Rated short-circuit breaking capacity:…50 kA

Modular design, mechanical life up to 40,000 cycles, higher operating life, lower initial cost, reliable service for 30 years.

Up to 50 Secondary full-capacity breaking capacity up to 52% DC component; main circuit temperature monitoring, secondary device monitoring, circuit breaker mechanism status monitoring, and intelligent trolley drive.