Porduct Overview

EKU4-T2-20 Type 2 Imax 20kA modular surge protection devices offer protection for equipment connected to low voltage AC power supplies, guarding against transient overvoltage caused by local lightning strikes or the switching of electrical inductive or capacitive loads.

The N-PE module and the L-N module make a mechanical distinction provided to prevent incorrect combinations of plug-in SPD modules and sockets comply with the relevant provisions of 7.3.1 in the IEC61643-11 standard. For example, the cartridge of N-PE mode (consists of gas discharge tube) can be plugged in L-N mode (consists of varistor), this can lead to dangerous situations like outbreak of fire.

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

Maximum continuous operating voltage (L-N)	Uc	275V	320V	385V	440V
Maximum continuous operating voltage (N-PE)	Uc	255V
Norminal discharge current (8/20μs) (L-N)/(N-PE)	In	10kA
Maximum discharge current (8/20μs) (L-N)/(N-PE)	Imax	20kA
Voltage protection level (L-N)/(N-PE)	Up	1.0kV/1.5kV	1.2kV/1.5kV	1.45kV/1.5kV	1.6kV/1.5kV
Voltage protection level 5kA	Up	0.8kV	1.0kV	1.2kV	1.4kV
Response time (L-N)/(N-PE)	tA	≤25ns/≤100ns
Operating temperature range	Tu	-40℃ to +80℃
Max. Back-up fuse		125 A gL/gG
Operating state/fault indication		Green/Red(L-N),Yellow(N-PE)
Cross-section area (Min.)/(Max.)		4mm²/35mm²
Mounting		35 mm DIN Rail, EN 60715
Enclosure 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	275V	320V	385V	440V
1P	EKU5-T2-20-1P275	EKU5-T2-20-1P320	EKU5-T2-20-1P385	EKU5-T2-20-1P440
2P	EKU5-T2-20-2P275	EKU5-T2-20-2P320	EKU5-T2-20-2P385	EKU5-T2-20-2P440
3P	EKU5-T2-20-3P275	EKU5-T2-20-3P320	EKU5-T2-20-3P385	EKU5-T2-20-3P440
4P	EKU5-T2-20-4P275	EKU5-T2-20-4P320	EKU5-T2-20-4P385	EKU5-T2-20-4P440
1P+NPE	EKU5-T2-20-1PN275	EKU5-T2-20-1PN320	EKU5-T2-20-1PN385	EKU5-T2-20-1PN440
3P+NPE	EKU5-T2-20-3PN275	EKU5-T2-20-3PN320	EKU5-T2-20-3PN385	EKU5-T2-20-3PN440
With Remote Signaling
1P	EKU5-T2-20-1P275S	EKU5-T2-20-1P320S	EKU5-T2-20-1P385S	EKU5-T2-20-1P440S
2P	EKU5-T2-20-2P275S	EKU5-T2-20-2P320S	EKU5-T2-20-2P385S	EKU5-T2-20-2P440S
3P	EKU5-T2-20-3P275S	EKU5-T2-20-3P320S	EKU5-T2-20-3P385S	EKU5-T2-20-3P440S
4P	EKU5-T2-20-4P275S	EKU5-T2-20-4P320S	EKU5-T2-20-4P385S	EKU5-T2-20-4P440S
1P+NPE	EKU5-T2-20-1PN275S	EKU5-T2-20-1PN320S	EKU5-T2-20-1PN385S	EKU5-T2-20-1PN440S
3P+NPE	EKU5-T2-20-3PN275S	EKU5-T2-20-3PN320S	EKU5-T2-20-3PN385S	EKU5-T2-20-3PN440S

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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

Maximum continuous operating voltage (L-N)	Uc	275V	320V	385V	440V
Maximum continuous operating voltage (N-PE)	Uc	255V
Norminal discharge current (8/20μs) (L-N)/(N-PE)	In	10kA
Maximum discharge current (8/20μs) (L-N)/(N-PE)	Imax	20kA
Voltage protection level (L-N)/(N-PE)	Up	1.0kV/1.5kV	1.2kV/1.5kV	1.45kV/1.5kV	1.6kV/1.5kV
Voltage protection level 5kA	Up	0.8kV	1.0kV	1.2kV	1.4kV
Response time (L-N)/(N-PE)	tA	≤25ns/≤100ns
Operating temperature range	Tu	-40℃ to +80℃
Max. Back-up fuse		125 A gL/gG
Operating state/fault indication		Green/Red(L-N),Yellow(N-PE)
Cross-section area (Min.)/(Max.)		4mm²/35mm²
Mounting		35 mm DIN Rail, EN 60715
Enclosure 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	275V	320V	385V	440V
1P	EKU5-T2-20-1P275	EKU5-T2-20-1P320	EKU5-T2-20-1P385	EKU5-T2-20-1P440
2P	EKU5-T2-20-2P275	EKU5-T2-20-2P320	EKU5-T2-20-2P385	EKU5-T2-20-2P440
3P	EKU5-T2-20-3P275	EKU5-T2-20-3P320	EKU5-T2-20-3P385	EKU5-T2-20-3P440
4P	EKU5-T2-20-4P275	EKU5-T2-20-4P320	EKU5-T2-20-4P385	EKU5-T2-20-4P440
1P+NPE	EKU5-T2-20-1PN275	EKU5-T2-20-1PN320	EKU5-T2-20-1PN385	EKU5-T2-20-1PN440
3P+NPE	EKU5-T2-20-3PN275	EKU5-T2-20-3PN320	EKU5-T2-20-3PN385	EKU5-T2-20-3PN440
With Remote Signaling
1P	EKU5-T2-20-1P275S	EKU5-T2-20-1P320S	EKU5-T2-20-1P385S	EKU5-T2-20-1P440S
2P	EKU5-T2-20-2P275S	EKU5-T2-20-2P320S	EKU5-T2-20-2P385S	EKU5-T2-20-2P440S
3P	EKU5-T2-20-3P275S	EKU5-T2-20-3P320S	EKU5-T2-20-3P385S	EKU5-T2-20-3P440S
4P	EKU5-T2-20-4P275S	EKU5-T2-20-4P320S	EKU5-T2-20-4P385S	EKU5-T2-20-4P440S
1P+NPE	EKU5-T2-20-1PN275S	EKU5-T2-20-1PN320S	EKU5-T2-20-1PN385S	EKU5-T2-20-1PN440S
3P+NPE	EKU5-T2-20-3PN275S	EKU5-T2-20-3PN320S	EKU5-T2-20-3PN385S	EKU5-T2-20-3PN440S

Type 2 AC Surge Protector, Imax 20kA, Class II AC SPD

EKU4-T2-20 Type 2 Imax 20kA modular surge protection devices offer protection for equipment connected to low voltage AC power supplies, guarding against transient overvoltage caused by local lightning strikes or the switching of electrical inductive or capacitive loads.

Type 2 AC Surge Protector, Imax 20kA, Class II AC SPD

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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Type 2 AC Surge Protector, Imax 20kA, Class II AC SPD

EKU4-T2-20 Type 2 Imax 20kA modular surge protection devices offer protection for equipment connected to low voltage AC power supplies, guarding against transient overvoltage caused by local lightning strikes or the switching of electrical inductive or capacitive loads.

Type 2 AC Surge Protector, Imax 20kA, Class II AC SPD

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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