Surge Protector

NYKU1-I series Class T1 (15-50KA)

NYKU1 series Class T2 (10-160KA)

Concise Efficient Safe Comprehensive

PRODUCT OVERVIEW

NYKU1 series surge protector, also known as lightning protector, is an electrical component capable of suppressing transient overvoltage and lightning strikes. It is mainly installed in circuits to protect electronic equipment from overvoltage and overcurrent.

PRODUCT CHARACTERISTICS

Fast response

Surge protectors are able to react in a very short time (nanoseconds) to ensure that voltage surges are blocked or attenuated before they damage the equipment.

Low residual voltage,
high withstand voltage

It’s conducive to prevent electrical fires caused by excessive voltage by limiting voltage spikes.

High-energy contacts
for long service life

Frequent voltage fluctuations can gradually damage the internal components of load electronic equipment, and surge protectors can minimize the damage and extend the service life of the equipment.

Small size, full range
of specification, easy to use

Modular module meets the mounting requirements of general 35mm guide rail, which is easy to use and maintain.

Technical Parameters

NYKU1-I Series Surge Protector Technical Parameters

Main characteristics
Execution standard GB/T18802.11/IEC61643-11
Rated operating voltage Un 230V/400V
Number of poles 1P, 2P, 3P, 4P
Experimental type Class I （T1）
Waveform 10/350us
Model NYKU1-I 15kA NYKU1-I 25kA NYKU1-I 50kA
Impulse current limp 15kA 25kA 50kA
Nominal discharge current In 50kA 50kA 50kA
Response time Ta ≤100ns ≤100ns ≤100ns
Maximum continuous operating voltage Uc（V） 275 320 385 440 460 275 320 385 440 460 275 320 385 440 460
Voltage protection level Up（kV） ≤1.5 ≤1.6 ≤2.0 ≤2.2 ≤2.5 ≤1.8 ≤2.0 ≤2.2 ≤2.4 ≤2.5 ≤2.3 ≤2.5 ≤2.5 ≤3.0 ≤3.2

NYKU1 Series Surge Protector Technical Parameters

Main characteristics
Execution standard GB/T18802.11/IEC61643-11
Rated operating voltage Un 230V/400V
Number of poles 1P,1P+N,2P,3P,3P+N,4P
Experimental type Class II(T2)
Waveform 8/20us
Model NYKU1 10kA NYKU1 20kA NYKU1 40kA NYKU1 60kA
Maximum discharge current Imax 10kA 20kA 40kA 60kA
Nominal discharge current In 5kA 10kA 20kA 30kA
Response time Ta ＜25ns ＜25ns ＜25ns ＜25ns
Maximum continuous operating voltage Uc（V） 275 320 385 460 275 320 385 460 275 320 385 460 275 320 385 460
Voltage protection level Up（kV） ≤0.8 ≤1.2 ≤1.2 ≤1.2 ≤1.0 ≤1.2 ≤1.4 ≤1.6 ≤1.2 ≤1.4 ≤1.6 ≤2.0 ≤1.5 ≤1.8 ≤1.8 ≤2.2
Protection degree IP20
Ambient temperature limit -40℃~80℃
Installation method 35mm standard electrical guide rail mounted
Casing color Light grey

NYKU1 Series Surge Protector Technical Parameters

Main characteristics
Execution standard GB/T18802.11/IEC61643-11
Rated operating voltage Un 230V/400V
Number of poles 1P,1P+N,2P,3P,3P+N,4P
Experimental type Class II(T2)
Waveform 8/20us
Model NYKU1 80kA NYKU1 100kA NYKU1 120kA NYKU1 160kA
Maximum discharge current Imax 80kA 100kA 120kA 160kA
Nominal discharge current In 40kA 50kA 60kA 80kA
Response time Ta ＜25ns ＜25ns ＜25ns ＜25ns
Maximum continuous operating voltage Uc（V） 275 320 385 460 385 420 385 420 385 420
Voltage protection level Up（kV） ≤0.8 ≤1.2 ≤1.2 ≤1.2 ≤2.4 ≤2.5 ≤2.5 ≤2.65 ≤3.0 ≤3.2
Protection degree IP20
Ambient temperature limit -40℃~80℃
Installation method 35mm standard electrical guide rail mounted
Casing color Light grey
Selection table

NYKU1-I Series Surge Protector

NYKU1 I 15kA 4P 385V Additional features
Product code Use category Maximum impulse current Number of poles Maximum operating voltage Additional features
NYKU1：
Surge Protector 		I:Class T1 15kA
25kA
50kA		 1P:1 pole
2P:2 pole
3P:3 pole
4P:4 pole		 275V
320V
385V
440V
460V		 X:Remote signaling

Note: • NYKU1-I series conventional discharge components are graphite clearance, of which NYKU1-I-15 can be made into two types of discharge components: chip and graphite.
            • Remote signaling function is optional for chip type, but not for graphite type. X means remote signaling function, C stands for chip.

NYKU1 Series Surge Protector

NYKU1 40kA 4P 385V Additional features
Product code Maximum discharge current Number of poles Maximum operating voltage Additional features
NYKU1：
Surge Protector 		10kA 20kA 40kA 60kA 80kA 100kA 120kA 160kA 1P:1 pole
1PN:1 pole+N
2P:2 pole
3P:3 pole
3PN:3 pole+N
4P:4 pole		 275V
320V
385V
460V		 X:Remote signaling

Technical Parameters


  • Execution standard：GB/T18802.11/IEC61643-11

    Rated operating voltage Un：230V/400V

    Number of poles：1P,2P,3P,4P

    Experimental type：Class I （T1）

    Waveform：10/350us

    Model：NYKU1-I 15kA/NYKU1-I 25kA/NYKU1-I 50kA

    Impulse current limp：15kA/25kA/50kA

    Nominal discharge current In：50kA

    Response time Ta：≤100ns

    Maximum continuous operating voltage Uc（V）：275,320,385,440,460

    Voltage protection level Up（kV）：≤1.5(275V),≤1.6(320V) ,≤2.0(385V) ,≤2.2(440V) ,≤2.5(460V) /≤1.8(275V) ,≤2.0(320V) ,≤2.2(385V) ,≤2.4(440V) ,≤2.5(460V) /≤2.3(275V) ,≤2.5(320V) ,≤2.5(385V) ,≤3.0(440V) ,≤3.2(460V)

  • Execution standard：GB/T18802.11/IEC61643-11

    Rated operating voltage Un：230V/400V

    Number of poles：1P,1P+N,2P,3P,3P+N,4P

    Experimental type：IClass I （T2）

    Waveform：8/20us

    Model：NYKU1- 10kA/NYKU1-20kA/NYKU1-40kA/NYKU1-60kA

    Maximum discharge current Imax：10kA/20kA/40kA/60kA

    Nominal discharge current In：5kA/10kA/20kA/30kA

    Response time Ta：＜25ns

    Maximum continuous operating voltage Uc（V）：275/320/385/460

    Voltage protection level Up（kV）：≤0.8(275V),≤1.2(320V),≤1.2(385V),≤1.2(460V)/≤1.0(275V),≤1.2(320V),≤1.4(385V),≤1.6(460V)/≤1.2(275V),≤1.4(320V),≤1.6(385V),≤2.0(460V)/≤1.5(275V),≤1.8(320V),≤1.8(385V),≤2.2(460V)

    Protection degree：IP20

    Ambient temperature limit：-40℃～80℃

    Installation method：35mm standard electrical guide rail mounted

    Casing color：Light grey

  • Execution standard：GB/T18802.11/IEC61643-11

    Rated operating voltage Un：230V/400V

    Number of poles：1P,1P+N,2P,3P,3P+N,4P

    Experimental type：Class II （T2）

    Waveform：8/20us

    Model：NYKU1- 80kA/NYKU1-100kA/NYKU1-120kA/NYKU1-160kA

    Maximum discharge current Imax：80kA/100kA/120kA/160kA

    Nominal discharge current In：40kA/50kA/60kA/80kA

    Response time Ta：＜25ns

    Maximum continuous operating voltage Uc（V）：275/320/385/420/460

    Voltage protection level Up（KV）：≤0.8(275V),≤1.2(320V),≤1.2(385V),≤1.2(460V)/≤2.4(385V),≤2.5(420V)/≤2.5(385V),≤2.65(420V)/≤3.0(385V),≤3.2(420V)

    Protection degree：IP20级

    Ambient temperature limit：-40℃～80℃

    Installation method：35mm standard electrical guide rail mounted

    Casing color：Light grey

Selection table


  • Product code ：NYKU1: Surge Protector

    Use category：I:Class T1

    Maximum impulse current：15kA,25kA,50kA

    Number of poles：1P:1 pole,2P:2 pole,3P:3 pole,4P:4 pole

    Maximum operating voltage：275V,320V,385V,440V,460V

    Additional features：X:Remote signaling

Note:NYKU1-I series conventional discharge components are graphite clearance, of which NYKU1-I-15 can be made into two types of discharge components: chip and graphite.
Remote signaling function is optional for chip type, but not for graphite type. X means remote signaling function, C stands for chip.

  • Product code ：NYKU1: Surge Protector

    Maximum discharge current ：10kA,20kA,40kA,60kA,80kA,100kA,120kA,160kA

    Number of poles：1P:1 pole,1PN:1 pole+N,2P:2 pole,3P:3 pole,3PN:3 pole+N,4P:4 pole

    Maximum operating voltage：275V,320V,385V,460V

    Additional features：X:Remote signaling