依依视频在线观看_亚洲精品av福利_国产华语AV人人澡成人_人人搞人人干人人草_成人电影激情无码舔_亚洲色图动漫五月天精品视频_91嫩草传媒国产性爱王_91国产精品久久一区二区

Used for circuit leakage protection alarm, such as residual leakage circuit breaker, leakage protection switch (RCCB, RCBO), etc.; Epoxy resin potting can be used in harsh environments; Working frequency: 50Hz/60Hz; Primary and secondary power frequency withstand voltage 4KV/Min, insulation resistance ≥1000MΩ/500Vdc; Working temperature range: -20℃～60℃;