KYN61-40.5 (Z) armoured removable AC metal-enclosed switchgear (hereinafter referred to as "switchgear") is mainly characterized by: the cabinet is equipped with ZN85-40.5 (joint venture brand circuit breaker) new type fully insulated magnetic or spring operating mechanism vacuum circuit breaker SF6 circuit breaker, and the cabinet body is assembled by aluminum-zinc plating, which improves the matching accuracy of the handcart and the cabinet body. The handcart is very portable and interchangeable.