• Indoor high-voltage load break switch with fuse
Indoor high-voltage load break switch with fuse
discuss personally
Model
FN3-6/400
Basic info
Brand ROCKWILL
Model NO. Indoor high-voltage load break switch with fuse
Rated voltage 6kV
Rated normal current 400A
Rated frequency 50/60Hz
Series FN
Product Detail

Product Overview

The FN3 - 12, FN3 - 12R, and FN3 - 12R/S load break switches are high - voltage electrical appliances installed indoors. They are suitable for AC 50Hz, 6kV or 10kV networks to break and close load and overload currents. They can also be used as switches for breaking and closing no - load long lines, no - load transformers, and capacitors. The load break switches with RN3 - type fuses (FN3 - 12R, FN3 - 12R/S) can cut off short circuits and be used as protection switches.This load break switch can be operated with CS3 - type and CS2 - type manual operating mechanisms.

Key Features

  • Multi - scenario Current Control:Suitable for 50Hz, 6kV/10kV AC networks. It can stably break and close load and overload currents, and also support the switching operations of no - load long lines, no - load transformers, and capacitors, covering multiple operation and maintenance scenarios of the distribution network.

  • Extended Short - circuit Protection:After being equipped with an RN3 - type fuse (such as the FN3 - 12R series), it has the ability to cut off short - circuit currents. It can be used as a protection switch to provide short - circuit fault protection for equipment and lines, simplifying the protection configuration of the distribution network.

  • Installation Scenario Adaptation:With an indoor installation design and a compact structure, it is suitable for typical indoor power distribution facilities such as ring main units and box - type substations, meeting the construction and renovation needs of indoor power distribution systems in urban distribution networks, industrial and mining enterprises, etc.

  • Operating Mechanism Compatibility:It supports CS3 and CS2 - type manual operating mechanisms, adapts to different operating habits and existing equipment support systems, reduces the cost of renovation and replacement, and improves the flexibility of on - site operation and maintenance.

  • Mature Technical Architecture:Iterated based on the classic FN3 series, it has stable arc - extinguishing performance, a long mechanical service life, and high long - term operation reliability, reducing the frequency of equipment failures and operation and maintenance workload.

Technical Parameters

Operating Environmental Conditions

  • Altitude: Not exceeding 1000 meters;

  • Ambient air temperature: Not higher than +40°C and not lower than -10°C;

  • Indoor places with air relative humidity not exceeding 90% (when the temperature is +25°C);

  • Environments free from conductive dust;

  • Environments free from corrosive gases that damage metals and insulation;

  • Places without severe vibration and impact;

  • Environments without fire and explosion hazards.

Know your supplier
ROCKWILL
Rockwill Electric Group Global Manufacturer of High voltage and medium-voltage power equipment and smart grid solutions. Headquartered in Wenzhou, China. Serving 100+ countries with quality, innovation, and trust. What We Offer: • HV-MV switchgear (VCB, SF₆ circuit breakers, RMU, GIS) • Distribution transformers and substations • Smart grid and monitoring systems • Solar, wind, EV charging, and energy storage solutions • EPC turnkey power projects Certified: ISO 9001 / ISO 14001 / ISO 45001
Main Categories
High voltage
Business Type
Design/Manufacture/Sales
Highest Annual Export (USD)
$150,000,000
Professional Experience
16 years
Workplace
108000m²m²
占位
占位
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