Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
FKN12-24 Air Load Break Switch: 24kV 630A compressed air LBS, FKRN12 fuse combination, spring mechanism, front/side/flip mount, terminal substation, box-type substation, -25°C to +40°C.
Advanced FKN12-24kV Air Load Break Switch Series: Premium FKN12 compressed air load break switch and FKRN12 combination with fuse designed for three-phase AC 50Hz 24kV power distribution systems, providing control and protection for transformers, cables, overhead lines and power equipment, particularly suitable for terminal transformer substations and box-type substations in grid networks, featuring spring operating mechanism with manual or electrical (motor) operation, offering flexible installation options including front-mounted, side-mounted, and flip-mounted configurations with right or left operation capability, designed for -25°C to +40°C ambient temperature at altitudes up to 1000m.
Terminal Box-Type Substation Ready: FKN12/FKRN12 incorporates 95% daily humidity tolerance and 8-degree earthquake resistance, suitable for environments free from fire, explosion, pollution, chemical corrosion and violent vibration, providing reliable compressed air load break switching solution for indoor 24kV switchgear, terminal substations, box-type substations requiring transformer/cable/overhead line protection with proven spring mechanism performance and flexible mounting options.
| Item | FKN12A-24 | FKRN12A-24 | |||
| Rated Voltage | kV | 24 | 24 | ||
| Rated Frequency | Hz | 50 | 50 | ||
| Rated Current | A | 630 | 1250 | ||
| Rated Insulation level | 1min IF Withstand Voltage | To-ground,interphase | kV | 65 | 65 |
| Insulation break | 79 | 79 | |||
| Lightning Impulse Withstand Voltage （peak） | To-ground,interphase | 125 | 125 | ||
| Insulation break | 145 | 145 | |||
| Rated Short-Time Withstand Current
(Thermal Stable Current) |
Load switch | KA | 20 | – | |
| Ground switch | 20 | – | |||
| Rated Short-Time Duration
(Thermal Stable Time) |
Load switch | S | 4 | – | |
| Ground switch | 2 | – | |||
| Rated Short-Time Making Current （peak） | KA | 50 | – | ||
| Rated Breaking Current | Active Load Breaking Current | A | 630 | – | |
| Closed-Ring Breaking Current | 630 | – | |||
| 5% Active Load Breaking Current | 31.5 | – | |||
| Cable Charging Current | 10 | – | |||
| Breaking Idle Load Transformer Capacity | KVA | 1250 | – | ||
| Rated Short-Time Breaking Current
（current limitation fuse） |
KA | – | 31.5 | ||
| Rated Transfer Current | A | – | 1200 | ||
| Mechanical Service Life | cycles | 2000 | 2000 | ||
Bepto is a leading Chinese company in electrical insulation, focused on developing advanced solutions for future power systems. We support transmission and distribution safety and growth, with long-term partners including State Grid, ABB, Schneider, Siemens, and GE. Our services reach clients in over 22 countries.
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Bepto focuses on the global market and provides our clients with products suitable for the local market:
Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
