FN7-12DXLRAF 12kV Indoor High-Voltage Load Break Switch with Fuse and Motorized Device
The FN7-12DXLRAF is an advanced indoor AC high-voltage gas-producing load break switch designed for 12kV three-phase power systems. This combination unit features a motorized switching device for automated control and an integrated impact fuse for superior circuit protection. With its innovative side-operating mechanism, it offers simpler installation and greater flexibility to meet diverse user requirements in industrial and utility applications.
FN7-12 Series Indoor High-Voltage AC Load Break Switch (LBS)
Product Overview
The FN7-12 series is a new type of gas-producing indoor high-voltage load break switch designed for 12kV three-phase AC 50Hz power systems. It is primarily used for the reliable opening and closing of load currents and short-circuit currents.
Building on the classic FN7-12 design, this series introduces a side-operation mechanism, making installation simpler and more convenient while meeting the diverse requirements of modern power distribution.
Available Models & Configurations
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FN7-12DXLRAF (Advanced Type): Equipped with an impact fuse and a motorized switching device for automated and remote operations.
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FN7-12C (Manual Type): Designed for panel manual operation, offering a reliable and cost-effective solution for manual switching requirements.
Technical Parameters
| Item | Unit | Data |
| Rated Voltage | kV | 12 |
| Rated Current | A | 400 / 630 |
| 1min Power Frequency Withstand Voltage | kV | 42 / 48 |
| 4S Thermal Stable Rated Current (Effective) | kA | 12.5 / 20 |
| Dynamic Stable Current (Peak) | kA | 31.5 / 50 |
| Short Circuit Making Current | kA | 31.5 / 50 |
| Rated Breaking Current | A | 400 / 630 |
| Rated Transfer Current | A | 1000 |
Key Performance Features
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Gas-Producing Arc Extinguishing: High efficiency in breaking load currents.
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Integrated Fuse Protection: The DXLRAF model provides superior short-circuit protection via an impact fuse.
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Flexible Installation: The side-operating mechanism allows for easy integration into various switchgear cabinets.
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Automated Readiness: Motorized options allow for seamless integration into smart grid and remote-control systems.
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