20 kW Three-Phase AC Changeover & Protection Box (Solar Systems)
 
This 20 kW three-phase AC Changeover Box is a pre-wired distribution and switching solution designed for commercial and large residential solar power systems. It provides safe and reliable manual changeover between grid supply and three-phase inverter output, while offering essential AC protection for the installation.
All critical switching and protection components are integrated into a single, professionally wired enclosure, ensuring a neat installation, reduced commissioning time, and long-term system reliability.
 
Key features:
Three-phase main AC circuit breaker
Three-phase grid input circuit breaker
Input surge protection device (SPD) for all phases
Three-phase inverter output circuit breaker
Output surge protection device (SPD)
Heavy-duty three-phase manual changeover switch
Clearly labelled phases and protection devices
Robust enclosure suitable for indoor or protected outdoor installation
 
Suitable for:
20 kW three-phase hybrid or grid-tied solar inverter systems
Commercial, agricultural, and large residential installations
Load-shedding backup and power continuity applications
 
Benefits:
Simplifies three-phase solar installations
Improves electrical and equipment safety
Protects inverters and downstream loads
Ensures a neat and compliant installation when installed by a qualified electrician