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A voltage sensitive relay (VSR) is a relay. It is used for automotive, truck and marine applications. A voltage sensitive relay senses the input voltage generated and automatically connects/disconnects the appliance or circuit at pre-set voltages for a variety of applications. It is typically used to prevent over-discharging of car battery and is very common in a dual battery system. A VSR is usually classified into 12V / 24V range with varying amperage. A single sense relay only detects voltage at one pole while a dual sense relay detects voltage at both poles. An ignition-protected voltage sensitive relay can withstand repetitive engine cranking transients without significant effect. VSRs are inexpensive and offer little or no voltage drop. However, the relay may chatter (repeatedly open/close at very short intervals) if the voltage is not stable. 〔(BATTEK )〕 ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Voltage Sensitive Relay」の詳細全文を読む スポンサード リンク
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