The LW34-12/T630-20 outdoor pole-mounted SF6 circuit breaker is a new generation of complete pole-mounted switchgear products developed by our company in accordance with the national grid's first and second-level technical integration standards. The switch configuration fully complies with the requirements of the national grid's first and second-level technical integration standards. The switch has a compact structure, reasonable layout, comprehensive functions, and all indicators meet the requirements of the national grid's first and second-level integration. It adopts unified parameter protection electronic CT, electronic zero-sequence CT, and electronic zero-sequence voltage sensor, with a wide measurement range, high measurement accuracy, stable reliability, and low power loss. The analog quantity is complete, facilitating accurate determination of various faults in the line.