Outdoor HV Vacuum Circuit Breaker

ZW32-40.5FG Outdoor HV Vacuum Circuit Breaker is supplied by China's leading manufacturer Jinhand Electrical. Featuring a compact steel design with configurable current transformers, this factory-direct solution reliably interrupts load, overload, and short-circuit currents in medium-voltage overhead grids. With growing global influence, we welcome worldwide partnerships.

Advantages

1.Miniaturized Design: The ZW32-40.5FG features a compact design, making it suitable for installations in areas with limited space while maintaining effective performance.
2.Robust Construction: Built with high-quality steel casing, ensuring durability and protection against harsh outdoor conditions.
3.Customization Options: Offers flexibility with selectable current transformers based on user requirements, allowing for tailored applications.

MAIN TECHNICAL PARAMETERS

Main Features

1.Integrated Components: Comprises an integrated sealed pole, current transformer, operating mechanism, and protective box, providing a complete and efficient solution.
2.Versatile Usage: Designed for medium voltage overhead power grids, capable of breaking and closing load currents, overload currents, and short-circuit currents effectively.
3.Isolation Switch Compatibility: Can be equipped with an isolation switch, enhancing operational safety and functionality for various power distribution needs.

Product Highlights

1.Compact Design for High Voltage Applications: Suitable for 40.5kV medium-voltage overhead lines, with a compact structure that minimizes space requirements, ideal for outdoor substations with limited space.
2.Highly Integrated Structure: Combines sealed poles, current transformers, operating mechanism, and protective enclosure into one unit for easy installation and high overall reliability.
3.Strong Breaking and Withstand Capability: Rated short-circuit breaking current up to 25/31.5kA, rated peak withstand current 63/80kA, suitable for systems with high short-circuit currents.
4.Flexible Current Transformer Configuration: Current transformers with different ratios and accuracy classes can be selected based on user requirements, supporting both measurement and protection functions.
5.Expandable Disconnector Functionality: Can be equipped with an auxiliary disconnector to provide visible isolation, enhancing safety during maintenance operations.

Optimized Operational Costs

1.Maintenance-Free Sealed Pole Design: Vacuum interrupter and insulation structure fully sealed for life, eliminating maintenance needs and reducing operational costs.
2.Modular Component Replacement: Core modules such as mechanism, current transformers, and controllers can be replaced independently, shortening repair time.
3.Optional Intelligent Condition Monitoring: Supports addition of online monitoring modules for real-time tracking of mechanical characteristics, electrical life, and other data to enable predictive maintenance.

Logistics & Installation Support

1.Professional Packaging for Heavy Equipment: Uses steel-wood structure packaging that is shockproof and moisture-resistant, suitable for long-distance sea and land transport.
2.Standardized Installation Accessories: Complete set of mounting brackets, connectors, and grounding devices provided, supporting various foundation installation methods.
3.Global Project Delivery Experience: Products exported to over 30 countries, familiar with international shipping and customs clearance processes, with on-site technical guidance available.

Durability & Stability

1.Fully Sealed Steel Enclosure: Made of welded high-quality steel plates with anti-corrosion surface treatment, protection rating up to IP67, with strong weather resistance.
2.Wide Frequency Adaptability: Supports both 50Hz and 60Hz systems, suitable for different grid frequency requirements domestically and internationally.
3.High Insulation Performance: Wet withstand voltage 80/95kV, dry withstand voltage 95kV, lightning impulse withstand voltage 185kV, ensuring reliable insulation.

Production Process Advantages

1.In-House Vacuum Interrupter Sealing: Uses copper-chromium contact materials and automated one-time sealing processes to ensure breaking performance and lifespan.
2.Integrated Casting of Current Transformers: Transformers and poles are vacuum-cast with epoxy resin for high insulation strength, resistance to moisture, and contamination.
3.Fully Automated Mechanical Characteristic Testing: Each unit undergoes mechanical characteristic tests including closing/opening time, speed, and travel to ensure reliable operation.

Supply Chain Advantages

1.Self-Controlled Core Components: Key components such as vacuum interrupters, operating mechanisms, and intelligent controllers are independently developed, ensuring supply chain stability and security.
2.Partnerships with Global Quality Suppliers: Long-term cooperation with international component suppliers like ABB and Siemens ensures quality of critical parts.
3.Flexible Production and Quick Response: Supports customization of rated current, CT ratio, operating power supply, etc., for rapid response to special project requirements.

Why Choose Us?

1.Specialized Manufacturer of Medium-High Voltage Outdoor Circuit Breakers: Proven R&D and mass production capabilities for 40.5kV vacuum circuit breakers.
2.Complete Product Certification System: Type-tested by national authoritative testing institutions, with international certifications such as KEMA and CE.
3.System Integration and Engineering Support Capability: Provides complete outdoor distribution equipment including circuit breakers, disconnectors, surge arresters, and intelligent terminals.
4.Global Service Network: Service points in multiple countries offering localized installation guidance, training, and after-sales support.

Contact us

With more than a decade of hands-on expertise, Jinhand has become one of China’s top manufacturers and suppliers of electrical equipment. Our factory utilizes numerous advanced technologies and equipment, and we invite you to procure our high-grade, competitively priced products made in China.