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Terminal Apparatus ZU30 series surge protector

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ZU30-B surge protector is applicable to the circuit of AC 50Hz/60Hz 380V and below in TN-S TN-C TN-C-S TT IT power system for the equipotential connecting on “SPD-1” position which locates in the figure of SPD to prevent the damage caused by the thunder or surge over-voltage in the electric networks. It is in conformity with the standards of IEC61643-1 GB18802.1. It is equipped with an embedded failure disconnecting device when the surge protector is failed due to overheat or breakdown, the device can automatically disconnect it from the electric networks,and the visible alarm indicator will turn into red instead of green. It is with the function of remote communication and is a N.O contact, if one of the surge protector’s module or more failed, the contact will close, and send out the fault signal to realize remote control. The protective module can be changed even it is on power.