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China KYN28A-12 Mid-Mounted Cabinet Suppliers | Factory Direct 10kV Armored Enclosed Switchgear
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Highly Modular Design
Key components such as the circuit breaker and isolation carriage are mounted on a removable cart, enabling flexible operation and easy maintenance.
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Multiple Positioning States
Supports working, testing, isolation, and removal positions, providing versatile operational modes for diverse field requirements.
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Fully Enclosed Metal Armor
Cabinet constructed from high-quality aluminum-zinc coated steel plates through multiple bending processes, forming a robust, fully enclosed metal armor structure.
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"Five-Prevention" Locking Mechanism
A comprehensive interlocking system is integrated to prevent accidental operation, ensuring maximum personnel and equipment safety during all operating conditions.
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Optional Intelligent Protection
Optional integrated protection devices enable intelligent measurement and protection, supporting modern smart grid and distribution automation requirements.
⚡ Core Technical Specifications
| Rated Current | 1,250 A — 3,150 A |
| Short-Circuit Breaking Capacity | 25 kA — 40 kA |
| Cabinet Structure | Fully enclosed metal armor, isolated compartments |
| Compliance Standards | GB (China National Standard) & IEC (International Standard) |
| Protection System | Comprehensive "Five-Prevention" interlocking mechanism |
| Optional Feature | Integrated intelligent measurement & protection devices |
✅ High Reliability
📐 Compact Structure
🖐️ User-Friendly Operation
🔐 Safe Maintenance
🌐 GB & IEC Compliant
💬 Frequently Asked Questions
Q
What does the modular design of the mid-mounted cabinet offer in terms of maintenance?
The highly modular design allows key components such as the circuit breaker and isolation carriage to be mounted on a removable cart. This enables technicians to easily perform maintenance, inspection, or replacement without disrupting the entire system. Multiple positioning states — working, testing, isolation, and removal — further simplify routine service procedures.
Q
What is the purpose of the isolated compartment structure inside the cabinet?
The cabinet is divided into four isolated compartments: the busbar room, circuit breaker cart room, cable room, and instrument relay room. This compartmentalization ensures that any fault occurring in one section is contained and prevented from escalating to other areas, significantly improving overall operational safety and system reliability.
Q
What is the "five-prevention" locking mechanism and why is it important?
The "five-prevention" (五防) locking mechanism is a comprehensive interlocking system designed to prevent five types of accidental operations, such as closing or opening a circuit breaker under load, misoperation of grounding switches, and unauthorized access to live compartments. This mechanism is a critical safety feature that protects both personnel and equipment during switching operations and maintenance.
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What are the rated current and short-circuit breaking capacity of this mid-mounted cabinet?
The core specifications of this mid-mounted cabinet typically include a rated current ranging from 1,250 A to 3,150 A, and a short-circuit breaking capacity of 25 kA to 40 kA. These parameters make it suitable for a wide range of medium-voltage distribution network applications requiring high performance and reliability.
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Does this product support intelligent protection and measurement functions?
Yes. The mid-mounted cabinet offers optional integrated protection devices that enable intelligent measurement and protection capabilities. These optional modules allow the cabinet to meet the demands of modern smart grid infrastructure, supporting real-time monitoring, automated fault detection, and remote operation functions.
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Which international and domestic standards does this mid-mounted cabinet comply with?
This product is designed in strict compliance with both domestic standards (GB — China National Standard) and international standards (IEC — International Electrotechnical Commission). This dual compliance ensures that the cabinet meets globally recognized benchmarks for safety, performance, and interoperability, making it suitable for both domestic and international distribution network projects.