Core Applications：
Suitable for 12kV power distribution systems in factories, residences, high-rise buildings, industrial parks, etc., for power reception/distribution, line overload and short circuit protection, especially suitable for oil-free, low-maintenance, frequent operation and automation transformation scenarios.
Core Structure and Characteristics：
Insulation and Sealing: All live components are sealed within an SF₆ gas tank, achieving an IP67 protection rating. Unaffected by condensation, dirt, or salt spray, it requires no maintenance.
Main Switch Configuration: Standard configuration includes an FLN series SF₆ three-position load switch (integrated load/isolation/grounding), replaceable with VS1/VD4 vacuum circuit breakers or SF₆ circuit breakers, supporting manual/electric operation.
Safety Design: Built-in pressure relief channel and mechanical "five-proof" interlocking protect against accidental opening/closing, live grounding, and accidental entry into live compartments, ensuring personal and equipment safety.
Modular Expansion: Basic modules include load switches, combined electrical appliances, circuit breakers, etc., connected by insulated busbars between cabinets, providing strong fault isolation and allowing for flexible combination and expansion. Automation Adaptation: Reserves PT/CT/FTU/DTU interfaces to support remote monitoring, fault location and self-healing, meeting the needs of distribution network automation.
