Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
FW11-12 Air Load Break Switch: 12kV 630A outdoor disconnector with cutout fuse, tropical zone design, rocking insulator, 1800m altitude, 0-100% humidity, vertical/horizontal mounting, 40°C max.
Advanced FW11-12 Air Load Break Switch Series: Premium off-load isolator switch designed for tropical zone continuous operation on 3-phase 3-wire 11kV/15kV/22kV/24kV/27kV/33kV/36kV, 50/60Hz distribution systems with star-point source transformer earthed through arc suppression coil or earthing resistor, featuring air insulated “rocking insulator” design with two fixed insulator posts and one moving insulator post per phase, delivering 400-630A rated continuous current, 20-25kA short-time withstand, compliant with IEC62271-102, IEC60129, IEC60265-1, IEC60694, IEC60815, BS EN ISO 1461 standards.
Tropical Zone and Overhead Line Ready: FW11-12 incorporates vertical/horizontal mounting for single or H-pole structures on overhead lines/feeders, compatible with tubular steel poles and spun concrete poles, strong arcing ability, reliable performance, long service life, operating at maximum 40°C ambient (28°C average), 0-100% humidity, altitudes up to 1800m, providing reliable air load break switching solution with cutout fuse for tropical zone distribution systems.
| FW11-12 Air Load Break Switch Specifications | FW11-12 | FW11-24 | FW11-36 | Unit |
|---|---|---|---|---|
| Model Number | FW11-12 | FW11-24 | FW11-36 | – |
| Alternative Voltage | 11/15kV | 22/24/27kV | 33/36kV | – |
| Brand | Bepto Insulation Systems | Bepto Insulation Systems | Bepto Insulation Systems | – |
| Product Type | Outdoor Air Load Break Switch (Off-Load Isolator Switch with Cutout Fuse) | Outdoor Air Load Break Switch (Off-Load Isolator Switch with Cutout Fuse) | Outdoor Air Load Break Switch (Off-Load Isolator Switch with Cutout Fuse) | – |
| Core Technology | Air Insulated “Rocking Insulator” Design + Cutout Fuse + Tropical Zone Optimization | Air Insulated “Rocking Insulator” Design + Cutout Fuse + Tropical Zone Optimization | Air Insulated “Rocking Insulator” Design + Cutout Fuse + Tropical Zone Optimization | – |
| Rated Voltage | 12 | 24 | 36 | kV |
| Rated Frequency | 50/60 | 50/60 | 50/60 | Hz |
| Electrical System | 3-Phase 3-Wire Distribution System | 3-Phase 3-Wire Distribution System | 3-Phase 3-Wire Distribution System | – |
| Neutral Point Grounding | Star-Point Earthed Through Arc Suppression Coil or Earthing Resistor | Star-Point Earthed Through Arc Suppression Coil or Earthing Resistor | Star-Point Earthed Through Arc Suppression Coil or Earthing Resistor | – |
| Rated Continuous Current Carrying Capacity | 400-630 | 400-630 | 400-630 | A |
| Rated Short-Time Withstand Current (r.m.s.) | ≥20 / 3s | ≥20 / 3s | ≥25 / 3s | kA |
| Lightning Impulse Withstand (To Earth/Between Poles, Peak) | 60-75 | 95-125 | 145-170 | kV |
| Lightning Impulse Withstand (Across Isolating Distance, Peak) | 70-85 | 110-145 | 165-195 | kV |
| Power Frequency Withstand (To Earth/Between Poles, r.m.s.) | 28 | 50 | 70 | kV |
| Power Frequency Withstand (Across Isolating Distance, r.m.s.) | 32 | 60 | 80 | kV |
| Insulator Design | Air Insulated “Rocking Insulator” Type | Air Insulated “Rocking Insulator” Type | Air Insulated “Rocking Insulator” Type | – |
| Insulator Configuration | Two Fixed Insulator Posts + One Moving Insulator Post Per Phase | Two Fixed Insulator Posts + One Moving Insulator Post Per Phase | Two Fixed Insulator Posts + One Moving Insulator Post Per Phase | – |
| Mounting Type | Vertical/Horizontal Mounting | Vertical/Horizontal Mounting | Vertical/Horizontal Mounting | – |
| Pole Structure Compatibility | Single Pole or H-Pole Structure | Single Pole or H-Pole Structure | Single Pole or H-Pole Structure | – |
| Pole Type Compatibility | Tubular Steel Poles + Spun Concrete Poles | Tubular Steel Poles + Spun Concrete Poles | Tubular Steel Poles + Spun Concrete Poles | – |
| Application | Overhead Lines/Feeders from Energized Sections | Overhead Lines/Feeders from Energized Sections | Overhead Lines/Feeders from Energized Sections | – |
| Tropical Zone Design | Yes (Maximum 40°C, Average 28°C, High Humidity, Heavy Rainfall) | Yes (Maximum 40°C, Average 28°C, High Humidity, Heavy Rainfall) | Yes (Maximum 40°C, Average 28°C, High Humidity, Heavy Rainfall) | – |
| Average Ambient Temperature (Max) | 28 (40) | 28 (40) | 28 (40) | °C |
| Humidity Range | 0-100 | 0-100 | 0-100 | % |
| Preferred Altitude | ≤1800 | ≤1800 | ≤1800 | m |
| Max Creepage Distance | 500 | 800 | 900 | mm |
| Standards Compliance | IEC62271-102:2003, IEC60129:1984, IEC60265-1:1998, IEC60694:1996, IEC60815:1986, BS EN ISO 1461 | IEC62271-102:2003, IEC60129:1984, IEC60265-1:1998, IEC60694:1996, IEC60815:1986, BS EN ISO 1461 | IEC62271-102:2003, IEC60129:1984, IEC60265-1:1998, IEC60694:1996, IEC60815:1986, BS EN ISO 1461 | – |
| Key Advantages | Strong Arcing Ability, Reliable Performance, Long Service Life, Tropical Zone Optimization, Rocking Insulator, Vertical/Horizontal Mounting, High Humidity Resistance | Strong Arcing Ability, Reliable Performance, Long Service Life, Tropical Zone Optimization, Rocking Insulator, Vertical/Horizontal Mounting, High Humidity Resistance | Strong Arcing Ability, Reliable Performance, Long Service Life, Tropical Zone Optimization, Rocking Insulator, Vertical/Horizontal Mounting, High Humidity Resistance | – |
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.
