RCD 插座 断开火线和零线连接，保持地线连接完整 安装在单组插座上 检测零线连接中断和脉动直流接地故障 背面盒深度最少需要 25mm 当电源临时断电时保持锁定 Timeguard RCD"s Current Rating 13A Voltage Rating 220 - 240Vac Trip Current 30mA Trip Time 40ms Conforms to BS1363 and BS7288 Designed to provide protection against the risk of electrocution and fire hazards. **Passive circuitry