KYN61-40.5 indoor metal-clad withdrawable AC switchgear is designed for 40.5kV, 50/60Hz three-phase AC power distribution systems. Adopting ABB standardized outline design and human-machine interface concepts, this high-voltage switchgear combines the proven KYN61 compartment structure with ABB-style industrial appearance and advanced operational safety features.
Designed for reliable medium-voltage power distribution applications, the KYN61-40.5 Switchgear provides excellent mechanical strength, electrical performance, and maintenance convenience for substations, power plants, and industrial power systems.
The cabinet body of the KYN61-40.5 Switchgear is manufactured using high-quality aluminum-zinc coated steel plates processed by CNC bending technology. The structure adopts a high-strength bolted assembly method without welding, ensuring excellent cabinet rigidity, dimensional accuracy, and long-term mechanical stability.
The standard cabinet dimensions are:
The enclosure is divided by grounded metal partitions into four independent compartments:
Each compartment features an independent pressure relief channel to effectively release internal arc pressure and improve operational safety.
The front panel of the KYN61-40.5 Switchgear adopts an integrated operation design. The instrument viewing window, mechanical operating handle, handcart position indicator, locking mechanism, and warning labels are arranged in a clear and organized layout, allowing operators to quickly identify equipment status.
Optimized ventilation grilles provide efficient heat dissipation while maintaining a clean and uniform cabinet appearance. The enclosure protection rating reaches IP4X, and the protection level is IP2X when the circuit breaker compartment door is opened.
The KYN61-40.5 Switchgear is fully compatible with ABB HD4 and VD4-40.5 withdrawable vacuum circuit breakers, as well as ABB REF series protection relays. This makes it an ideal solution for projects requiring ABB-compatible switchgear configurations.
The withdrawable handcart adopts a floor-mounted screw propulsion mechanism, providing smooth operation and excellent interchangeability for ABB vacuum circuit breakers. The complete five-prevention interlocking system integrates mechanical and electrical safety protection functions according to ABB safety logic concepts.
The design, insulation clearance, mechanical structure, and electrical performance of the KYN61-40.5 Switchgear comply with international standards including:
The switchgear supports project requirements including temperature rise tests, short-circuit withstand tests, and internal arc classification tests, making it suitable for demanding high-voltage power distribution applications.
The switchgear adopts ABB-style cabinet appearance and standardized operation interface design, providing a professional industrial appearance and convenient operation experience.
The bolted modular assembly structure improves cabinet rigidity, simplifies installation, and allows easier maintenance and future expansion.
Grounded metal partitions create separated functional compartments, improving operator safety and providing effective internal arc pressure relief protection.
The switchgear is specially designed to match ABB 40.5kV vacuum circuit breakers and protection devices, providing excellent interchangeability and system integration.
With IP4X enclosure protection and advanced safety design, the KYN61-40.5 Switchgear is suitable for substations, power generation facilities, industrial plants, and other medium-voltage distribution projects.
The KYN61-40.5 Switchgear is widely used in:
With ABB-compatible design, robust mechanical construction, advanced safety protection, and compliance with IEC standards, the KYN61-40.5 Switchgear provides a reliable solution for medium-voltage power distribution requirements. It delivers long service life, convenient maintenance, and stable operation for critical power applications worldwide.
