LOVATO Electric公司推出新型PVM10 A440，在17.5mm寬的模塊中組裝，完成用于三相系統(tǒng)的電壓檢測保護繼電器生產。 PVM10 A440電壓檢測繼電器由其控制的電壓供電，用于斷相和錯誤相序，帶有一個配置片式快速接插件的輸出繼電器，用于電壓<70%額定值時檢測斷相。 一般特性 • 模塊化，寬度17.5mm • 50/60Hz額定電壓控制Ue，相間電壓：208-440VAC • 被檢測電壓提供動力 • 配置一個片式快速接插件的繼電器輸出，額定8A 250VAC AC1 • 斷相跳閘時間：60秒 • 綠色LED提示加電 • 紅色LED提示功能 • 保護等級：IP40 on（裝配在室內或電路板），IP20 on terminals original text： [COLOR=#708090]VOLTAGE MONITORING PROTECTION RELAY, PMV10 A440 TYPE LOVATO Electric completes the rated of voltage monitoring protection relays for three-phase systems, without neutral, by introducing the new PVM10 A440 type, modular housing in one 17.5mm wide module. PVM10 A440 is a voltage monitoring relay, powered by the same voltage it controls, for phase loss and incorrect phase sequence. It has an output relay with one changeover contact and detects phase loss if one of the voltages is <70% rated value. General characteristics • Modular version, one 17.5mm wide module • Rated voltage to control Ue at 50/60Hz, phase to phase: 208-440VAC • Powered by the monitored voltage • Relay output with 1 changeover contact, rated 8A 250VAC AC1 • Tripping time for phase loss: 60msec • Green LED indicator for power on • Red LED indicator for functions • Degree of protection: IP40 on front （only when mounted in housing or electric board with IP40）; IP20 on terminals.[/COLOR]