| Brand | ROCKWILL |
| Numero sa Modelo | Indoor high-voltage load break switch with fuse |
| Naka nga boltahang rated | 6kV |
| Rated Current | 400A |
| Nasodnong peryedyo | 50/60Hz |
| Serye | FN |
Product Overview
Ang FN3 - 12, FN3 - 12R, ug FN3 - 12R/S load break switches mao kini ang mga high-voltage electrical appliances nga gisulod sa indoor. Sila ang suitable para sa AC 50Hz, 6kV o 10kV networks aron mobreak ug moclose og load ug overload currents. Kini usab mahimong gamiton isip mga switch para mobreak ug moclose og no-load long lines, no-load transformers, ug capacitors. Ang load break switches uban RN3-type fuses (FN3 - 12R, FN3 - 12R/S) mahimo mogwara og short circuits ug gamiton isip protection switches. Kini nga load break switch mahimo molihok gamit ang CS3-type ug CS2-type manual operating mechanisms.
Key Features
Multi-scenario Current Control:Suitable para sa 50Hz, 6kV/10kV AC networks. Kini mahimo stably mobreak ug moclose og load ug overload currents, ug support usab ang switching operations sa no-load long lines, no-load transformers, ug capacitors, covering multiple operation ug maintenance scenarios sa distribution network.
Extended Short-circuit Protection:Pagkatapos mopagbutang og RN3-type fuse ( sama sa FN3 - 12R series), adunay ability mogwara og short-circuit currents. Kini mahimo gamiton isip protection switch aron mobantog og short-circuit fault protection alang sa equipment ug lines, simplifying ang protection configuration sa distribution network.
Installation Scenario Adaptation:Uban indoor installation design ug compact structure, kini ang suitable para sa typical indoor power distribution facilities sama sa ring main units ug box-type substations, meeting ang construction ug renovation needs sa indoor power distribution systems sa urban distribution networks, industrial ug mining enterprises, etc.
Operating Mechanism Compatibility:Supports CS3 ug CS2-type manual operating mechanisms, adapts sa different operating habits ug existing equipment support systems, reduces ang cost sa renovation ug replacement, ug improves ang flexibility sa on-site operation ug maintenance.
Mature Technical Architecture:Iterated based sa classic FN3 series, adunay stable arc-extinguishing performance, long mechanical service life, ug high long-term operation reliability, reducing ang frequency sa equipment failures ug operation ug maintenance workload.
Technical Parameters


Altitude: Dili mosugyot sa 1000 meters;
Ambient air temperature: Dili mas taas sa +40°C ug dili mas baba sa -10°C;
Indoor places uban air relative humidity dili mosugyot sa 90% (kon ang temperatura +25°C);
Environments free from conductive dust;
Environments free from corrosive gases nga magdumol sa metals ug insulation;
Places without severe vibration ug impact;
Environments without fire ug explosion hazards.