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Surge Protection Device

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CYS1 Surge Protection Device (SPD)

1. Introduction of CYS1 Surge Protection Device:
CYS 1 Surge Protection Devices (referred as SPD) provides 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 resumes its high electricity resistance to secure normal operation of the protected power network without presence of the surge voltage.

2. Features of CYS1 Surge Protection Device:
~ Plug-in type function unit makes easy replacement
~ On-off indicating window
~ Quick response less than 25ms

3. Technical Data of CYS1 Surge Protection Device:

Pole No. l, 2, 3, 4
Frequency 50/60Hz
Connection terminal O Pillar terminal with clamp
On-Off indicating window O Green: normal function
O Red: functionless, immediate replacement required
Connection capacity Rigid conductor 25m2
4. Parameters of Surge Protection Device:
Category CYS 1 -A CYS1-B CYS1-C CYS1-D CYS1-E
Rated voltage Un: 220 220 220 380 380
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) 5104-10% 5104-10% 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) 300 390 I 640 I 1500 I 1580
Ambient temperature -40-+80
Function unit colour deep yellow light yellow I light grey brown red
Min. terminal connection (mm~): phase, neutral 2.5, earth 4
4. Overall Installation Dimensions of Surge Protection Device:
As a manufacturer of high quality electronic components, our miniature circuit breaker, earth leakage circuit breaker, AC contactor, Power relay, etc. can meet your needs.
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