按柜体结构可分为金属封闭铠装式开关柜、金属封闭间隔式开关柜﹑金属封闭箱式开关柜和敞开式开关柜四大类
According to the cabinet structure, it can be divided into four categories: metal enclosed armoured switchgear, metal enclosed spaced switchgear, metal enclosed box switchgear and open switchgear.
(1)金属封闭铠装式开关柜(用字母K来表示)主要组成部件(例如：断路器、互感器、母线等)分别装在接地的用金属隔板隔开的隔室中的金属封闭开关设备。
(1) Metal-enclosed armoured switchgear (represented by the letter K) The main components (e.g. circuit breakers, transformers, buses, etc.) are respectively installed in grounded metal-enclosed switchgear in compartments separated by metal partitions.
(2)金属封闭间隔式开关柜(用字母J来表示)与铠装式金属封闭开关设备相似，其主要电器元件也分别装于单独的隔室内，但具有一个或多个符合一定防护等级的非金属隔板。
(2) Metal enclosed spacer switchgear (expressed by letter J) is similar to armored metal enclosed switchgear. Its main electrical components are also installed in separate compartments, but it has one or more non-metallic partitions that meet a certain level of protection.
(3)金属封闭箱式开关柜(用字母X来表示)开关柜外壳为金属封闭式的开关设备。
(3) Metal-enclosed box-type switchgear (represented by the letter X) The shell of the switchgear is a metal-enclosed switchgear.
(4)敞开式开关柜，无保护等级要求，外壳有部分是敞开的开关设备。
(4) Open switch cabinet, no protection level requirements, part of the shell is open switchgear