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Type 2 Surge Arrester – SPA103
The SPA103 is for installation at LPZ 0B -1 or higher, protecting low voltage equipment from surge damage.
Designed according to IEC 61643-11 / GB 18802.1. This device has a pluggable modular SPD Class II (Class C) for TT and TN-S power supply system.
According to the lightning protection zones concept, this device is for installation at LPZ 0B -1 or higher. This surge protective device is usually installed in the distribution-box or feeder bus of the UPS, protecting devices or equipment downstream.
A fuse must be installed at the upstream of the SPD / lightning arrester to make sure that the protected system has double protection.