低压配电柜三相电源设备防护。适用高山或郊区(B/C级保护)，380V交流，最大持续工作电压范围Uc=385-460V、额定通流In=40KA、最大通流Imax=100KA(8/20s)、保护水平UP:小于1.8KV
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三相电源电涌保护器TH78LAYBX100-380E
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