Product Description
The FN5 indoor load break switch is a high-performance, highly reliable device designed specifically for three-phase high-voltage power distribution (12 kV, 50 Hz). It is widely used in power distribution systems for industrial and commercial buildings, as well as in switchgear retrofit projects.
The FN5 Indoor Load Break Switch Manufactured in strict accordance with IEC standards, the product is suitable for international grid operating environments and meets all technical specifications and parameters required for indoor power distribution systems.
The FN5 Indoor Load Break Switch features precise breaking capabilities, allowing for safe operation under normal conditions. It is typically paired with high-voltage current-limiting fuses to provide effective isolation and dual protection against overloads, short circuits, and surges, thereby safeguarding downstream electrical equipment and distribution lines.
The switch's contact gap is clearly visible, enabling maintenance personnel to visually verify the isolation of circuits and eliminate potential safety hazards, ensuring safety during routine maintenance and equipment upgrades.
The switch features a proven mechanical design that ensures reliable operation and straightforward installation, making it compatible with various types of high-capacity switchgear.
Combining high performance with extensive industry experience, the FN5 is a trusted, preferred solution for a wide range of medium-voltage switchgear projects.
Product Specifications
|
Item |
Parameter |
|
Model |
FN5 Indoor High Voltage Load Switch |
|
Rated Voltage |
12kV |
|
Rated Frequency |
50Hz |
|
Rated Current |
400A / 630A |
|
Short-time Withstand Current |
12.5kA / 16kA, 2s |
|
Application Environment |
Indoor, installed inside high voltage switchgear |
|
Operation Type |
Manual operating mechanism |
Product Features
Visible isolation gap for safer maintenance
Equipped with split manual operating structure. The open and closed status can be clearly identified on site. The visible break point helps staff confirm power-off status effectively and greatly improves safety during equipment inspection and maintenance.
Reliable load switching with fuse linkage protection
The switch is capable of making and breaking normal rated load current steadily. When short-circuit failure occurs in the circuit, the matching high voltage current-limiting fuse will operate instantly and trigger the switch trip, quickly isolating the faulty section to protect the whole system.
Mechanical interlock design prevents wrong operation
Built-in mechanical interlock structure avoids dangerous operations such as closing switch with live line or closing under earthing status. It fully meets standard five-prevention safety requirements for high voltage switchgear.
Manual operation with low maintenance cost
Adopts external independent manual operating mechanism. No external power supply is needed for switching actions. The overall mechanical structure is simple, stable and durable, requiring very little daily maintenance.
Modular structure for easy installation
Designed with standard modular structure and unified mounting holes. It fits perfectly for new switchgear assembly and also supports replacement and upgrading of old-type high voltage cabinets.
Certification
FAQ
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