欧美与日韩亚洲精品中文字幕_五月伊人天天_正在播放金发妇大战黑巨_自拍乱伦欧美综合_日本偷人视频直播网站_校花娇喘呻吟校长陈若雪视频_一女多男同时进6根同时进行_亚洲国产丝袜美腿av_中文字幕一区在线不卡_九九热播精品国产

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℃;