KYN550-12 Compact Metal-Clad Switchgear – 12kV Indoor Withdrawable Vacuum Circuit Breaker (VCB) Cabinet for Space-Limited Power Substations
The KYN550-12 is a high-performance, ultra-compact indoor metal-clad switchgear designed for 12kV three-phase AC power systems. Featuring a specialized 550mm narrow-body design, this unit provides the same robust protection and control as traditional cabinets while significantly reducing the footprint of the distribution room. It is equipped with a withdrawable vacuum circuit breaker (VCB) handcart for easy maintenance and a comprehensive mechanical “Five-Preventions” interlocking system to ensure maximum operator safety. With integrated microcomputer protection and real-time status monitoring, the KYN550-12 is the premier choice for urban substations, high-rise buildings, and industrial facilities requiring high-density power distribution.
KYN550-12 Indoor Compact Metal-Clad Withdrawable Switchgear (12kV)
Product Overview
The KYN550-12 is a next-generation, ultra-compact indoor metal-clad switchgear designed for 12kV three-phase AC power systems. By utilizing a specialized 550mm narrow-body design, this cabinet drastically reduces the required footprint for power distribution rooms without compromising on safety or performance. It serves as a centralized solution for receiving and distributing electrical energy, providing advanced protection and control for modern urban and industrial grids.
Core Features & Technical Advantages
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Space-Saving 550mm Profile: The compact width allows for high-density installation in space-restricted environments like underground substations and high-rise commercial buildings.
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Withdrawable VCB Handcart: Equipped with a removable vacuum circuit breaker (VCB) mounted on a dedicated transport trolley, enabling rapid offline maintenance and replacement.
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Intelligent Digital Monitoring: The top-mounted instrument compartment features microcomputer protection terminals, high-precision digital meters, and status indicators for comprehensive system oversight.
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Visual Operational Interface: Includes integrated tempered glass observation windows and front-panel circuit mimic diagrams for instant verification of internal switch positions.
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Robust “Five-Preventions” Interlock: Implements a strict mechanical interlocking system to prevent operational errors, ensuring maximum safety for onsite technical personnel.
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Industrial Safety Standards: Features clearly marked high-voltage danger warning labels and a high-strength steel enclosure to protect against dust and accidental contact.
Technical Specifications
| Item | Description |
| Model | KYN550-12 |
| Rated Voltage | 12kV |
| Cabinet Width | 550mm (Ultra-Narrow Design) |
| Circuit Breaker | Withdrawable Vacuum Circuit Breaker (VCB) |
| Protection Type | Microcomputer-based Integrated Protection |
| Installation | Indoor, Floor-standing lineup |
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