Lightning guard

Lightning guard LYD1-D series surge protective device (SPD) is usually be used in the IT, TT, TN-C, TN-S, TN-C-S and etc power supply system of AC 50/60Hz, rated voltage up to 380V, to protect from direct and indirect lightning impulse and other transient over voltage. As the conditions of IEC61643-1:1998-02 standard, Class III surge protective device, it is category C surge protective device. SPD has two protection modes: MC and MD, SPD is in compliance with GB18802.1/IEC61643-1 standards. Technical parameter Model and specification LYD1-DNo. of poles 1P 1P+N 2P 2P+N 3P 3P+N 4P Network service voltage Un(V) 220/380 380380 380Max. continuous operating voltage Uc(V) 320/385/420385/420320/385/420220/385Voltage protection level Up(KV) Less than 1.5/1.8/2.01.8/2.01.5/1.8/2.01.0/1.8Max.discharging current(8/20 us) (KA) 10/20Normal discharging current (8/20 us) (KA) 5/10Response time(ns) Less than 25Protection grade IP20Application Several protection for in line