继电保护装置既有19英寸水平安装式也有减少到3/4的不带面板的垂直安装式。组件化的设计使保护装置升级简便,易于维护。前面板上安装有饺链，易于抽取模块，前面板本身也是可移动的，能够安装深度有限的柜门上。前面板上还安装了一个可移动的挡灰盖，当操作键区或RS232通信端口时，须拆下该挡灰盖。垂直和水平安装的继电器的外壳尺寸分别示于下图，用于装盘时进行开孔，开孔时要确保面板能自由打开,从而不影响将来对继电器进行调整。
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