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  • Product Name:FDS16
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Product introduction
  FDS16
Construction and Feature
◆Plug-in type function unit makes easy replacement
◆On-off indicating window
◆Quick response less than 25ms

Application
FDS16 Surge protective Devices (referred as SPD) provide protection against surge current resulted from direct or indirect lightning strike or similar surge voltage. SPD is applicable to circuit with rated voltage up to 400V~, rated frequency 50/60Hz.
The product, using metal oxide varistor, designed to protect both phase and neutral line, is of high electricity resistance under normal operations. In case of surge current or voltage caused by lightning strike or similar, SPD functions quickly to conduct the surge voltage/current to earth and thus effectively prevent the downstream equipments of its protected line from destruction. SPD resume its high electricity resistance to secure normal operation of the protected power network without presence of the surge voltage.
 
Overall & installation dimensions

Technical data
◆Pole No. : 1、2、3、4
◆Frequency: 50/60Hz
◆Connection terminal:
◇Pillar terminal with clamp
 
◆On-Off indicating window:
◇Green: normal function
◇Red: functionless, immediate replacement required
◆Connection capacity: rigid conductor 25mm2
 
Category FDS16-A FDS16-B FDS16-C FDS16-D FDS16-E
Rated voltageUn: 220 220 200 380 380
Max. continuous operating voltage Uc(V) 320 320 320 420 460
Voltage protection level Up(Kv) 1 1.2 1.5 2.0 2.3
Norminal discharge current In(kA) 5 10 20 30 40
Rated varistor voltage(V) 510±10% 510±10% 510±10% 680±10% 680±10%
Max. discharge current Imax (kA)(8/20uS) 10 20 40 60 70
Response time (ms) <25
Power withstand (J) (2ms) 300        
Ambient temperature -40~+80
Function unit colour deep yellow light yellow light yellow brown red
Min. terminal connection (mm2): phase, neutral 2.5, earth 4
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