Product Overview
The KYN450-12 is a new-generation compact and modular AC metal-clad withdrawable switchgear designed for 12kV, 50Hz three-phase systems. It supports single busbar or sectionalized busbar configurations and is ideal for industrial and residential cable ring networks and distribution terminal projects. With applications across substations, cable branch boxes, and compact transformer substations, it is particularly suited for space-limited and high-demand environments such as airports, data centers, metro systems, wind farms, hospitals, and commercial complexes.
The system features a simple structure, reliable interlocks, flexible operation, and easy installation. By integrating sensing, automation, and digital technologies, the KYN450-12 delivers advanced performance and intelligent grid compatibility to meet the demands of modern power systems.
Technical Specifications
Rated Voltage: 12kV
Rated Frequency: 50Hz
1min Power Frequency Withstand Voltage: 42kV
Lightning Impulse Withstand Voltage: 75kV
Rated Short-time Withstand Current (4s): 20kA, 25kA, 31.5kA
Rated Peak Withstand Current: Up to 100kA
Main Busbar Current: Up to 4000A
Feeder Busbar Current: 630A / 1250A / 1600A
Cabinet Dimensions (W×D×H): 475×1100×2200 mm
Ingress Protection: IP4X (IP2X with CB compartment door open)
Ambient Temperature: –15°C to +40°C
Altitude: ≤2000m
Humidity: ≤95% (daily average), ≤90% (monthly average)
Weight: 200–350kg (including breaker)
Key Features
Compact Size: Only 475mm wide—half the footprint of traditional KYN28 cabinets.
Air Insulation: Eco-friendly design with no SF₆ gas, eliminating leakage risks.
Vacuum Interruption: Sealed pole-mounted vacuum circuit breakers offer high breaking capacity and visible isolation points.
Modular Structure: Flexible site configuration, easy to expand without transport limitations.
Intelligent Interfaces: Pre-installed sensor slots and digital modules meet smart grid demands.
Low Maintenance: Pressure-free, leak-free, and maintenance-free design with a 30-year service life.
Applications
Power Plants & Substations
Automotive, Steel, Chemical & Mining Industries
Infrastructure: Telecom, Banks, Hospitals, Schools, Ports, Airports
High-Rise & Commercial Buildings
Wind & Solar Energy, Energy Storage, Wastewater Treatment
Data Centers, Rail Transit, Metro & Tunnels
Military, Aerospace, Marine & Scientific Facilities
Customer Benefits
Space Efficiency: Slim footprint frees up valuable floor space.
Flexible Power Supply: Supports remote control and monitoring, multiple incoming schemes.
Reduced Maintenance: No gas, no leakage—safer and easier to operate.
Extreme Durability: Designed to withstand harsh environments for 30 years.
Why Choose Us
Disruptive, modular architecture with independently developed cabinet design
Precisely engineered through simulations and rigorous environmental testing
Flexible supply schemes with automatic fault isolation
High-quality components with silver-plated contacts and precision-machined parts
Maintenance-free air insulation and vacuum technology ensure long-term stability
