Summarize
Application
OS16 Surge protective Devices (referred as SPD)provide protection against surge current resulted from direct or indirect lightning strike or similar similar surge voltage. SPD is applicable to circuit witch 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 operation.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 operation of the protected power network without presence of the surge voltage.
Construction features
One-unit type assure the stability of product
On-off indicating window
Quick response less than 25ms
Main technical parameters
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Model & Specification
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OS16－A
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OS16－B
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OS 16－C
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OS16－D
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OS16－E
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Rated Voltage Un
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220
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220
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220
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380
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380
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Maximum continuous operating voltage Uc(V)
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320
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320
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320
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420
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420
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Voltage protection level Up(kV)(8 /20µs)
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1
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1.2
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1.5
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2
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2.3
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Nominal discharge current In(kA)(8 / 20µs )
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5
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10
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20
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30
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40
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Rated varistor voltage
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510±10﹪
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680±10﹪
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Maximum discharge current Imax(kA)(8 / 20µs )
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10
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20
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40
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60
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70
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Response time (ms )
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＜25
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Power withstanding(J) (2ms)
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300
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390
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640
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1500
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1580
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Ambient Temperature
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-40 ～ +80 ℃
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Minimum connection section (mm²)
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2.5 Phase Line, Null Line
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6 Earth Line
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Function unit colour
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deep yellow
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light yellow
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light grey
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brown
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red
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