SUP1-C series surge protector is suitable for AC 50/60Hz,230/400V and below of the TT, IT TN-S,TN-C-S such as power supply system can be used as lightning equipotential connection, its design basis in line with IE C61643-1,GB18802.1 and GB50057. It is mainly used to protect the electrical devices of low-voltage electric users and prevent surge current caused by graceful discharge (lightning tolerance) or operating overvoltage. As a single voltage limiting device, it is equipped with heavy zinc oxide varistor.
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