Porduct Overview

The EKU5-T1+T2-12 is a series of Class I+II Iimp 12.5kA AC Surge Protective Devices designed to protect against indirect and low-intensity direct lightning strikes. These SPDs are equipped with high-energy Metal Oxide Varistors, ensuring low response time and characteristics suitable for both Class I and II protection. The modular design with plug-in inserts allows for easy and quick replacement of function modules in case the MOV reaches the end of its lifespan due to high intensity or frequent overvoltage peaks.

Technical parameters

Technical Data

Table 1

No.of poles	1P	2P	3P	4P	1P+NPE	3P+NPE
Network systems	TN-S,TN-C,TT(only L-N)	TN-S	TN-C	TN-S	TT,TN-S
Mode of protection	L-PE,N-PE(onlyTN-S), L-PEN,L-N	L-PE,N-PE	L-PEN	L-PE,N-PE	L-N,N-PE
Protective elements	High Energy MOV				High Energy MOV and GDT

Table 2

Max. continuous operating a.c.voltage	Uc(L-N)	150V	275V	320V	385V
Max. continuous operating a.c.voltage	Uc(N-PE)	255V
Impulse discharge current (10/350μs)	limp	12.5kA
Norminal discharge current (8/20μs)	In	30kA
Maximum discharge current (8/20μs)	Imax	60kA
Voltage protection level (L-N)/(N-PE)	Up	1.2kV/1.5kV	1.5kV/1.5kV	1.6kV/1.5kV	1.8kV/1.5kV
Voltage protection level 5kA	Up	≤0.6kV	≤1.0kV	≤1.2kV	≤1.3kV
Response time (L-N)/(N-PE)	tA	≤25ns/≤100ns
Operating temperature range	Tu	-40℃ to +80℃
Max. backup fuse		160A gL/gG
Operating State/Fault Indication		Green/Red(L-N),Yellow(N-PE)
Cross-section area (Min.)/(Max.)		4mm²/35mm²
For mounting on		35mm Din rail
Enclosed material		Thermal Plastic UL94-V0
Degree of Protection		IP20 (built-in)

Dimensions

Basic circuit diagram

Installation Size

Product selection form

No. of Poles	Max. Continuous Operating AC Voltage
No. of Poles	150V	275V	320V	385V
1P	EKU5-T1+T2-12-1P150	EKU5-T1+T2-12-1P275	EKU5-T1+T2-12-1P320	EKU5-T1+T2-12-1P385
2P	EKU5-T1+T2-12-2P150	EKU5-T1+T2-12-2P275	EKU5-T1+T2-12-2P320	EKU5-T1+T2-12-2P385
3P	EKU5-T1+T2-12-3P150	EKU5-T1+T2-12-3P275	EKU5-T1+T2-12-3P320	EKU5-T1+T2-12-3P385
4P	EKU5-T1+T2-12-4P150	EKU5-T1+T2-12-4P275	EKU5-T1+T2-12-4P320	EKU5-T1+T2-12-4P385
1P+NPE	EKU5-T1+T2-12-1PN150	EKU5-T1+T2-12-1PN275	EKU5-T1+T2-12-1PN320	EKU5-T1+T2-12-1PN385
3P+NPE	EKU5-T1+T2-12-3PN150	EKU5-T1+T2-12-3PN275	EKU5-T1+T2-12-3PN320	EKU5-T1+T2-12-3PN385
With Remote Signaling
1P	EKU5-T1+T2-12-1P150S	EKU5-T1+T2-12-1P275S	EKU5-T1+T2-12-1P320S	EKU5-T1+T2-12-1P385S
2P	EKU5-T1+T2-12-2P150S	EKU5-T1+T2-12-2P275S	EKU5-T1+T2-12-2P320S	EKU5-T1+T2-12-2P385S
3P	EKU5-T1+T2-12-3P150S	EKU5-T1+T2-12-3P275S	EKU5-T1+T2-12-3P320S	EKU5-T1+T2-12-3P385S
4P	EKU5-T1+T2-12-4P150S	EKU5-T1+T2-12-4P275S	EKU5-T1+T2-12-4P320S	EKU5-T1+T2-12-4P385S
1P+NPE	EKU5-T1+T2-12-1PN150S	EKU5-T1+T2-12-1PN275S	EKU5-T1+T2-12-1PN320S	EKU5-T1+T2-12-1PN385S
3P+NPE	EKU5-T1+T2-12-3PN150S	EKU5-T1+T2-12-3PN275S	EKU5-T1+T2-12-3PN320S	EKU5-T1+T2-12-3PN385S

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Porduct Overview

Technical parameters

Technical Data

Table 1

No.of poles	1P	2P	3P	4P	1P+NPE	3P+NPE
Network systems	TN-S,TN-C,TT(only L-N)	TN-S	TN-C	TN-S	TT,TN-S
Mode of protection	L-PE,N-PE(onlyTN-S), L-PEN,L-N	L-PE,N-PE	L-PEN	L-PE,N-PE	L-N,N-PE
Protective elements	High Energy MOV				High Energy MOV and GDT

Table 2

Max. continuous operating a.c.voltage	Uc(L-N)	150V	275V	320V	385V
Max. continuous operating a.c.voltage	Uc(N-PE)	255V
Impulse discharge current (10/350μs)	limp	12.5kA
Norminal discharge current (8/20μs)	In	30kA
Maximum discharge current (8/20μs)	Imax	60kA
Voltage protection level (L-N)/(N-PE)	Up	1.2kV/1.5kV	1.5kV/1.5kV	1.6kV/1.5kV	1.8kV/1.5kV
Voltage protection level 5kA	Up	≤0.6kV	≤1.0kV	≤1.2kV	≤1.3kV
Response time (L-N)/(N-PE)	tA	≤25ns/≤100ns
Operating temperature range	Tu	-40℃ to +80℃
Max. backup fuse		160A gL/gG
Operating State/Fault Indication		Green/Red(L-N),Yellow(N-PE)
Cross-section area (Min.)/(Max.)		4mm²/35mm²
For mounting on		35mm Din rail
Enclosed material		Thermal Plastic UL94-V0
Degree of Protection		IP20 (built-in)

Dimensions

Basic circuit diagram

Installation Size

Product selection form

No. of Poles	Max. Continuous Operating AC Voltage
No. of Poles	150V	275V	320V	385V
1P	EKU5-T1+T2-12-1P150	EKU5-T1+T2-12-1P275	EKU5-T1+T2-12-1P320	EKU5-T1+T2-12-1P385
2P	EKU5-T1+T2-12-2P150	EKU5-T1+T2-12-2P275	EKU5-T1+T2-12-2P320	EKU5-T1+T2-12-2P385
3P	EKU5-T1+T2-12-3P150	EKU5-T1+T2-12-3P275	EKU5-T1+T2-12-3P320	EKU5-T1+T2-12-3P385
4P	EKU5-T1+T2-12-4P150	EKU5-T1+T2-12-4P275	EKU5-T1+T2-12-4P320	EKU5-T1+T2-12-4P385
1P+NPE	EKU5-T1+T2-12-1PN150	EKU5-T1+T2-12-1PN275	EKU5-T1+T2-12-1PN320	EKU5-T1+T2-12-1PN385
3P+NPE	EKU5-T1+T2-12-3PN150	EKU5-T1+T2-12-3PN275	EKU5-T1+T2-12-3PN320	EKU5-T1+T2-12-3PN385
With Remote Signaling
1P	EKU5-T1+T2-12-1P150S	EKU5-T1+T2-12-1P275S	EKU5-T1+T2-12-1P320S	EKU5-T1+T2-12-1P385S
2P	EKU5-T1+T2-12-2P150S	EKU5-T1+T2-12-2P275S	EKU5-T1+T2-12-2P320S	EKU5-T1+T2-12-2P385S
3P	EKU5-T1+T2-12-3P150S	EKU5-T1+T2-12-3P275S	EKU5-T1+T2-12-3P320S	EKU5-T1+T2-12-3P385S
4P	EKU5-T1+T2-12-4P150S	EKU5-T1+T2-12-4P275S	EKU5-T1+T2-12-4P320S	EKU5-T1+T2-12-4P385S
1P+NPE	EKU5-T1+T2-12-1PN150S	EKU5-T1+T2-12-1PN275S	EKU5-T1+T2-12-1PN320S	EKU5-T1+T2-12-1PN385S
3P+NPE	EKU5-T1+T2-12-3PN150S	EKU5-T1+T2-12-3PN275S	EKU5-T1+T2-12-3PN320S	EKU5-T1+T2-12-3PN385S

AC SPD Type 1+2, Iimp 12.5kA, Class I+II Surge Protective Device

AC SPD Type 1+2, Iimp 12.5kA, Class I+II Surge Protective Device

Porduct Overview

Technical parameters

Technical Data

Table 1

Table 2

Dimensions

Basic circuit diagram

Installation Size

Product selection form

Download Files

Porduct Overview

Technical parameters

Technical Data

Table 1

Table 2

Dimensions

Basic circuit diagram

Installation Size

Product selection form

Download Files

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Porduct Overview

Technical parameters

Technical Data

Table 1

Table 2

Dimensions

Basic circuit diagram

Installation Size

Product selection form

Download Files

Porduct Overview

Technical parameters

Technical Data

Table 1

Table 2

Dimensions

Basic circuit diagram

Installation Size

Product selection form

Download Files

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