LYD1-C Surge suppression mounted in distribution boxes of different floors, computer center, telecommunication room, etc.

LYD1-C Surge suppression :

SPD have only one side terminal, able to prevent from being electric touching, indoor fixedly mounted, limiting voltage.SPD has built in disconnector, when SPD is invalid due to overheating or breakdown, the disconnector can automatically separate SPD from the network, meanwhile send an indication signal. The visible window show white color in normal service, if to be separated from net work. it will show red color.1P+N,2P+N,3P+N SPD consist of 1P,2P,3P SPD and NPE neutral and earthing protection modules, used in the power supply system of TN-S,TN-C-S and etc.

Technical parameter

Model and specification	LYD1-C
No. of poles	1P	2P	3P	4P
Network service voltage Un(V)	220		380
Max. continuous operating voltage Uc(V)	220/320		385/450
Voltage protection level Up(KV) Less than	0.8/1.5		1.8/2.0
Max.discharging current(8/20 us) (KA)	40
Normal discharging current (8/20 us) (KA)	20
Response time(ns)	Less than 25
Protection grade	IP20
Application	Secondary protection for in line

LYD1-C Surge suppression