Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
FW9-12 Outdoor Load Break Switch: 12kV 630A overhead line isolator disconnector, 20kA/3s, rocking insulator, pole mounting, IEC compliant, tropical zone, 1800m altitude, 0-100% humidity.
Advanced FW9 Outdoor Off-Load Isolator Switch Series: Premium FW9-12 off-load isolator switch designed for continuous operation on three-phase 3-wire 11-36kV 50/60Hz distribution systems with star-point transformer earthed through Arc Suppression Coil or Earthing Resistor, featuring air-insulated rocking insulator design with two fixed and one moving insulator post per phase, delivering 400-630A continuous current carrying capacity with 20kA (3s) short-time withstand current for 12kV systems, 75kV lightning impulse withstand (ground/phase), 28kV power frequency withstand, compliant with IEC62271-102, IEC60129, IEC60265-1, IEC60694, IEC60815, BS EN ISO 1461 standards.
Overhead Line and Pole Mounting Ready: FW9-12 incorporates vertical/horizontal mounting configuration compatible with single or H-pole structures, tubular steel poles and spun concrete poles for overhead lines and feeders from energized sections, suitable for tropical zones with 40°C maximum ambient temperature, 28°C average temperature, 0-100% humidity range, altitudes up to 1800m above sea level, providing reliable outdoor off-load isolation solution for 12kV overhead distribution networks.
| FW9-12 Outdoor Load Break Switch Specifications | FW9-12 | FW9-24 | FW9-36 | Unit |
|---|---|---|---|---|
| Model Number | FW9-12 | FW9-24 | FW9-36 | – |
| Brand | Bepto Insulation Systems | Bepto Insulation Systems | Bepto Insulation Systems | – |
| Product Type | Outdoor Off-Load Isolator Switch (Overhead Line Disconnector) | Outdoor Off-Load Isolator Switch (Overhead Line Disconnector) | Outdoor Off-Load Isolator Switch (Overhead Line Disconnector) | – |
| Design Type | Air-Insulated Rocking Insulator Type | Air-Insulated Rocking Insulator Type | Air-Insulated Rocking Insulator Type | – |
| Rated Voltage | 12 | 24 | 36 | kV |
| Applicable Voltage Range | 11-15 | 22-27 | 33-36 | kV |
| Rated Frequency | 50/60 | 50/60 | 50/60 | Hz |
| Rated Continuous Current Carrying Capacity | 400-630 | 400-630 | 400-630 | A |
| Rated Short-Time Withstand Current (r.m.s.) | 20kA / 3s | 20kA / 3s | 25kA / 3s | – |
| Lightning Impulse Withstand (Ground/Phase) | 60-75 | 95-125 | 145-170 | kV |
| Lightning Impulse Withstand (Isolating Distance) | 70-85 | 110-145 | 165-195 | kV |
| Power Frequency Withstand (Ground/Phase) | 28 | 50 | 70 | kV |
| Power Frequency Withstand (Isolating Distance) | 32 | 60 | 80 | kV |
| Insulator Posts per Phase | 2 Fixed + 1 Moving | 2 Fixed + 1 Moving | 2 Fixed + 1 Moving | – |
| Mounting Type | Vertical / Horizontal | Vertical / Horizontal | Vertical / Horizontal | – |
| Pole Structure Compatibility | Single Pole, H-Pole, Tubular Steel Poles, Spun Concrete Poles | Single Pole, H-Pole, Tubular Steel Poles, Spun Concrete Poles | Single Pole, H-Pole, Tubular Steel Poles, Spun Concrete Poles | – |
| Max Ambient Temperature | 40 | 40 | 40 | °C |
| Average Ambient Temperature | 28 | 28 | 28 | °C |
| Humidity Range | 0-100% | 0-100% | 0-100% | – |
| Preferred Altitude | ≤1800 | ≤1800 | ≤1800 | m |
| Max Creepage Distance | 500 | 800 | 900 | mm |
| Earthing System | Arc Suppression Coil or Earthing Resistor | Arc Suppression Coil or Earthing Resistor | Arc Suppression Coil or Earthing Resistor | – |
| Standards Compliance | IEC62271-102, IEC60129, IEC60265-1, IEC60694, IEC60815, BS EN ISO 1461 | IEC62271-102, IEC60129, IEC60265-1, IEC60694, IEC60815, BS EN ISO 1461 | IEC62271-102, IEC60129, IEC60265-1, IEC60694, IEC60815, BS EN ISO 1461 | – |
| Application | Overhead Distribution Lines, Feeders from Energized Sections, 3-Phase 3-Wire 11-15kV Systems, Tropical Zones | Overhead Distribution Lines, Feeders from Energized Sections, 3-Phase 3-Wire 22-27kV Systems, Tropical Zones | Overhead Distribution Lines, Feeders from Energized Sections, 3-Phase 3-Wire 33-36kV Systems, Tropical Zones | – |
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.
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.
