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。安装保护装置时，前面板须处于与屏柜或开关设备门半平齐的位置，以使操作人员可以直接操作键区和 RS232 通信端口。保护装置通过四个螺丝钉（随机附上）安全地安装在屏柜上。
BEI 924-01012-204 ENCODER IN BAG
STAR 1651-414-10 LINEAR BEARING CARRIAGE, NNB
SAMSON 407 201 PUMPMASTER 3, AIR POWERED 66:1/725 RATIO
KENNAMETAL A28U DCLNL4 KC3 KENCLAMP BORING BARS, 1 3/4″
NUMATICS 554BB4321M DUAL SOLENOID PNEUMATIC VALVE, 150
KAWASAKI 50633-1011 DISPLAY ASSY, NIB
GOULD B545-000 I/O HOUSING MODEL NIB
WE ANDERSON L4-TOP FLOTECT FLOAT SWITCH FOR HAZARDOUS L
GENERAL ELECTRIC TH3362 60 A TYPE 1 ENCLOSURE SAFETY SW
INPRO SEAL VBX BEARING ISOLATOR, NIB
SQUARE D 9007CO5 SNAP SWITCH, LOT OF 4, IN BOX
GENERAL ELECTRIC TH3362 60 A TYPE 1 ENCLOSURE SAFETY SW
TELEMECANIQUE INSTANTANEOUS AUXILIARY CONTACT LA1 DN20
ALLEN-BRADLEY 800MS-CPA16 SQUARE PUSH BUTTON, 110/120 V
