One Time Fusion Column Vacuum Load Switch 12kV Medium Voltage Switching Device

FZW28-12F Vacuum Load Switch One-time Fusion Column

Product Overview
The FZW28-12F Vacuum Load Switch One-time Fusion Column is an advanced outdoor medium-voltage switching device developed by Dongshengyuan Electrical. It is designed for 12kV distribution networks, integrating vacuum load switch technology with a one-time fusion protection column. This switchgear provides reliable breaking and protection functions, ensuring safe and stable power supply for urban, rural, and industrial distribution systems.

Key Features
• Vacuum load switch design – Ensures reliable breaking capability and long electrical life.
• One-time fusion protection – Provides fast and efficient fault isolation.
• Outdoor structure – Resistant to harsh weather conditions, suitable for pole-mounted installation.
• High safety – Equipped with mechanical interlocks and fault-proof operation.
• Compact design – Easy installation and minimal maintenance.
• Flexible application – Suitable for rural networks, industrial facilities, and renewable energy projects.

Technical Specifications
Rated voltage: 12kV
Rated current: 630A
Rated short-circuit breaking current: 20kA
Power frequency withstand voltage: 42kV / 1min
Lightning impulse withstand voltage: 75kV
Insulation type: Vacuum interruption + Fusion protection
Installation type: Outdoor, pole-mounted
Service life: >20 years

Application Fields
• Rural and urban medium-voltage distribution networks
• Industrial power supply systems
• Outdoor substations and pole-mounted installations
• Renewable energy integration (solar and wind power)
• Smart grid and distribution automation

Why Choose FZW28-12F?
• Compliant with IEC & GB international standards.
• Combines vacuum switching with one-time fusion protection.
• Reliable outdoor performance, resistant to harsh conditions.
• Compact, durable, and maintenance-friendly design.
• Cost-effective solution for reliable medium-voltage power distribution.