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Mid-mounted Cabinet KYN28A-24: 10kV Armored Enclosed Switchgear from China Suppliers and Factory
The product features a 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 through multiple positioning states including working, testing, isolation, and removal.
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Cabinet Structure & Compartments
The cabinet is constructed from high-quality aluminum-zinc coated steel plates through multiple bending processes, forming a fully enclosed metal armor structure. It is divided into four isolated compartments, ensuring operational safety and preventing fault escalation.
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Busbar Room
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Circuit Breaker Cart Room
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Cable Room
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Instrument Relay Room
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Key Features
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Highly Modular Design
Circuit breaker and isolation carriage are mounted on a removable cart, enabling flexible operation and easy maintenance.
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Five-Prevention Locking
Comprehensive "five-prevention" interlocking mechanism prevents accidental operation and ensures personnel safety.
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Fully Enclosed Metal Armor
High-quality aluminum-zinc coated steel plates form a robust, fully enclosed metal armor structure.
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Optional Intelligent Protection
Integrated protection devices available for intelligent measurement and protection capabilities.
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Core Technical Specifications
| Parameter | Specification |
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| Rated Current | 1250A – 3150A |
| Short-Circuit Breaking Capacity | 25kA – 40kA |
| Cart Operation States | Working / Testing / Isolation / Removal |
| Cabinet Material | Aluminum-Zinc Coated Steel Plate (Multi-Bend Process) |
| Compliance Standards | GB / IEC International Standards |
✅ Standards & Advantages: Designed in strict compliance with domestic and international standards including GB and IEC. This product stands out with high reliability, compact structure, user-friendly operation, and safe maintenance — making it the preferred equipment for modern distribution network construction.
❓ Frequently Asked Questions
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What is the rated current range of this mid-mounted cabinet?
The mid-mounted cabinet supports a rated current range of 1250A to 3150A, covering a wide spectrum of medium and high-power distribution applications in modern power networks.
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What does the "five-prevention" locking mechanism protect against?
The "five-prevention" mechanism is a comprehensive safety interlocking system designed to prevent five common types of accidental operations — such as closing onto a live busbar or withdrawing a closed circuit breaker — protecting both equipment integrity and personnel safety during operation and maintenance.
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What are the different positioning states of the removable cart?
The removable cart supports four positioning states: Working (fully engaged for normal operation), Testing (isolated from the busbar for circuit testing), Isolation (fully disconnected for safe inspection), and Removal (cart physically extracted for maintenance or replacement).
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What international standards does this product comply with?
This mid-mounted cabinet is designed in strict compliance with both Chinese domestic standards (GB) and international standards (IEC), ensuring the product meets globally recognized quality, safety, and performance benchmarks for medium-voltage switchgear.
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What are the isolated compartments inside the cabinet?
The cabinet is divided into four fully isolated compartments: the Busbar Room, the Circuit Breaker Cart Room, the Cable Room, and the Instrument Relay Room. This compartmentalization prevents fault escalation between sections and ensures overall operational safety.
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Does this cabinet support intelligent protection and measurement?
Yes. The mid-mounted cabinet offers optional integrated protection devices that enable intelligent measurement and protection. This makes it compatible with smart grid and digital substation environments, supporting automated fault detection and real-time monitoring needs.