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Sf6 Gas Circuit Breaker 110kv Outdoor High Voltage Porcelain Column Type. High Breaking Capacity: Rated short-circuit breaking current up to 40kA for reliable protection. Long Mechanical Life: Designed for 6000 mechanical operations ensuring long-term durability. Comprehensive Protection: Features overcurrent, overvoltage, and circuit-breaker failure protection. Certified Quality: Manufactured under ISO9001:2000 standards with CCC certification. Lifelong Service Support: Provides lifelong service system with solutions within one working day. Customizable Parameters: Rated voltage and current can be customized to specific project needs.