FZ(R)N16 Series Vacuum Load Breaker Switch – Advanced Indoor Medium-Voltage Switching Solution

Engineered for dependable performance in compact Power Systems, the FZ(R)N16 Series Vacuum Load Breaker Switch is designed for indoor use in 12kV, 50/60Hz three-phase AC distribution networks. This switch excels in applications requiring frequent load switching, safe isolation, and integration within ring main units (RMUs), transformer chambers, and prefabricated substations.

Featuring a sealed **vacuum interrupter chamber**, the FZ(R)N16 ensures arc-free current interruption, minimal contact erosion, and immunity to environmental contaminants—eliminating the need for gas refills or routine maintenance. Its robust mechanical design supports over **10,000 load-breaking operations**, delivering long-term reliability even under demanding duty cycles.

• Vacuum-insulated ring main switch – optimized for urban underground networks with space-efficient, high-safety switching in RMUs

• 12kV indoor load disconnect unit – provides clear visual isolation and secure operation in metal-enclosed switchgear environments

• Long-life medium voltage breaker – engineered for extended service intervals with stable dielectric and thermal performance

The FZ(R)N16 series meets IEC 62271-102 standards and offers optional integrated earthing switches for enhanced personnel safety during maintenance. With a power frequency withstand voltage of up to **42kV** and short-time withstand current ratings of **20–31.5kA**, it ensures system integrity during transient faults while maintaining compact dimensions for easy panel installation.

Ideal for utilities, industrial plants, and commercial infrastructure, this vacuum load breaker combines modern insulation technology with user-focused safety features—making it a future-ready choice for efficient, low-maintenance medium-voltage power management.