ترحيل المراقبة ، 350-580VAC للتأخير ، فقدان الطور/التسلسل/عدم التوازن فوق الجهد ، 1SVR750487R8300
وصف
ABB 1SVR750487R8300 Monitoring Relay, 3-phase 350-580VAC Trip delay Phase loss/sequence/unbalance over/undervoltage
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