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FZW28-12F/630A 10kV Outdoor Pole-Mounted Smart Vacuum Load Break Switch (Sectionalizer)
Product Overview
The FZW28-12F/630A Outdoor Pole-Mounted Vacuum Load Break Switch is designed for 10kV distribution networks (50Hz). It is widely used as a sectionalizing and protection device in overhead line systems, providing reliable switching, fault isolation, and distribution automation functions.
With a rated voltage of 12kV and rated current of 630A, the FZW28-12F delivers stable performance under long-term outdoor operation, making it an ideal solution for urban and rural power distribution systems, industrial zones, and utility networks.
Key Technical Parameters
| Item | Specification |
|---|---|
| Model | FZW28-12F |
| Rated Voltage | 12kV |
| Rated Frequency | 50Hz |
| Rated Current | 630A |
| Power Frequency Withstand Voltage | 42kV / 48kV |
| Lightning Impulse Withstand Voltage | 75kV / 85kV |
| Peak Withstand Current | 40kA |
| Short-Circuit Making Current | 40kA |
The switch provides excellent insulation strength and short-circuit withstand capability, ensuring safe operation in 10kV distribution systems.
Fully Sealed Insulated Vacuum Structure
The FZW28-12F adopts an advanced fully sealed insulation tank design inspired by international technology (including Toshiba-type gas sealing structure concepts).
Key advantages:
Fully sealed construction prevents moisture, dust, and pollution ingress
Stable internal insulation environment
Explosion-proof and safe operation design
Suitable for harsh outdoor conditions
Long service life with minimal maintenance
This sealed structure significantly improves reliability in humid, dusty, and high-temperature environments.
Intelligent Fault Detection & Automatic Isolation
The switch is equipped with an intelligent fault detection and control system designed for distribution automation applications.
When a single-phase grounding fault occurs on a branch line:
The device automatically trips and isolates the faulted section
Only the faulty feeder loses power
Main line and other branches remain energized
Prevents large-scale power outages
This greatly improves power supply reliability and grid stability.
Fast Fault Location & Smart Grid Operation
The FZW28-12F supports intelligent fault reporting and remote monitoring functions.
Key benefits:
Automatic fault signal upload after operation
Accurate fault location identification
Optional communication module for remote dispatch center integration
Faster troubleshooting and repair response
Reduced maintenance labor and inspection time
Clear responsibility division between utility and users
This significantly improves distribution network operational efficiency.
Robust Structure & Long-Term Outdoor Reliability
The equipment is designed for harsh outdoor environments with strong mechanical and environmental resistance.
Features include:
High-strength sealed enclosure
Anti-corrosion and anti-aging structure
Stable operation under rain, wind, dust, and temperature variations
Long service life in outdoor overhead line systems
Professional Export Packaging
To ensure safe transportation, the product adopts reinforced export packaging:
Double-layer protective wrapping with moisture-proof film
Thickened wooden crate packaging
Internal wooden frame reinforcement
Shockproof and compression-resistant design
Suitable for sea and land transportation
The packaging structure can withstand long-distance logistics and heavy handling conditions, ensuring safe delivery.
Typical Applications
The FZW28-12F Vacuum Load Break Switch is widely used in:
10kV overhead distribution networks
Urban and rural power grids
Industrial and mining power systems
Township substations
Distribution automation projects
Feeder line sectionalizing and protection
Power supply responsibility boundary management
It is an essential device for modern distribution network fault isolation and reliability improvement.
Why Choose FZW28-12F Sectionalizing Load Break Switch?
Reliable 12kV outdoor switching performance
Strong short-circuit and insulation capability
Fully sealed vacuum structure design
Intelligent fault isolation for single-phase grounding
Supports distribution automation systems
Reduces outage scope and improves grid stability
Suitable for harsh outdoor environments
Ideal for smart distribution network upgrades
Custom Service
We provide customized solutions including:
Control cabinet and automation integration
Communication protocol customization (Modbus, IEC 60870-5-101/104)
Protection logic configuration
Pole-mounted accessories
OEM branding
Smart grid system integration
Contact us for technical drawings, quotations, and project support.
