SY-AIR-V-12/T630-25, a new generation of green and environmentally friendly switch gear/ring main unit (compact air insulated fixed circuit breaker cabinet, AC metal enclosed switch gear), is a complete set of distribution equipment suitable for 3.6-12kV three-phase AC 50Hz. The main switch is equipped with a vacuum circuit breaker and is protected by a comprehensive relay protection device or a self powered protection device.

This product has a simple structure, is safe, reliable, and maintenance free. It is widely used in 10kV distribution networks, box type substations, industrial and mining enterprises, high-rise buildings, residential areas, and user distribution stations as terminal or ring network power supply equipment.

The product has achieved breakthroughs in the world's three major innovative technologies:

●Innovate to achieve miniaturization and compact structure based on air insulation;

●Innovative air insulated sealed enclosure with self-healing capability;

●Innovative high reliability separated circuit breaker switch operating mechanism.