本系列装置（以下简称综合装置）用于煤矿井下127V手持式煤电钻或岩石电钻的远方控制，具有短路、过载、漏电保护及电缆绝缘低危险指示。系统是隔爆外壳、干式变压器、控制及保护三合一式的隔爆综合保护装置。

1.2适用条件

a、海拔高度不超过2000m；

b、环境大气压力80～110kPa；

c、周围介质温度为-20℃～+40℃；

d、空气相对湿度不大于95%（+25℃时）；

e、周围空气中含有爆炸性气体（甲烷类）和煤尘的煤矿井下；

f、在无显著摇动和冲击振动的地方，垂直倾斜不超过15 °；

g、在无足以腐蚀金属及破坏绝缘的气体和蒸气的环境中；

h、能防止水和液体浸入的地方；

i、电源电压允许波动范围：额定电压-1

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