EKU4-T2-40kA-AC-SPD
EKU4-T2-40kA-AC-SPD
EKU4-T2-40kA-AC-SPD
EKU4-T2-40kA-AC-SPD
EKU4-T2-40kA-AC-SPD
EKU4-T2-40kA-AC-SPD
EKU4-T2-40kA-AC-SPD

Type 2 AC SPD, Imax 40kA, Class II AC Surge Protection Device

EKU4-T2-40 Type 2 Imax 40kA 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.

● Standard: IEC/EN 61643-11
● Surge Rating: Imax=40kA (8/20 µs)
● IEC/EN Category: Type 2/Class II
● Max. continuous operating voltage: 275, 320, 385, 440V
● Housing: Pluggable Design

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Type 2 AC SPD, Imax 40kA, Class II AC Surge Protection Device

Inquire NOW PDF

Porduct Overview

EKU4-T2-40 Type 2 Imax 40kA 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 20kA
Maximum discharge current (8/20μs) (L-N)/(N-PE) Imax 40kA
Voltage protection level (L-N)/(N-PE) Up 1.3kV/1.5kV 1.5kV/1.5kV 1.8kV/1.5kV 2.0kV/1.5kV
Voltage protection level 5kA Up 1.0kV 1.2kV 1.4kV 1.6kV
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
  275V 320V 385V 440V
1P EKU5-T2-40-1P275 EKU5-T2-40-1P320 EKU5-T2-40-1P385 EKU5-T2-40-1P440
2P EKU5-T2-40-2P275 EKU5-T2-40-2P320 EKU5-T2-40-2P385 EKU5-T2-40-2P440
3P EKU5-T2-40-3P275 EKU5-T2-40-3P320 EKU5-T2-40-3P385 EKU5-T2-40-3P440
4P EKU5-T2-40-4P275 EKU5-T2-40-4P320 EKU5-T2-40-4P385 EKU5-T2-40-4P440
1P+NPE EKU5-T2-40-1PN275 EKU5-T2-40-1PN320 EKU5-T2-40-1PN385 EKU5-T2-40-1PN440
3P+NPE EKU5-T2-40-3PN275 EKU5-T2-40-3PN320 EKU5-T2-40-3PN385 EKU5-T2-40-3PN440
With Remote Signaling
1P EKU5-T2-40-1P275S EKU5-T2-40-1P320S EKU5-T2-40-1P385S EKU5-T2-40-1P440S
2P EKU5-T2-40-2P275S EKU5-T2-40-2P320S EKU5-T2-40-2P385S EKU5-T2-40-2P440S
3P EKU5-T2-40-3P275S EKU5-T2-40-3P320S EKU5-T2-40-3P385S EKU5-T2-40-3P440S
4P EKU5-T2-40-4P275S EKU5-T2-40-4P320S EKU5-T2-40-4P385S EKU5-T2-40-4P440S
1P+NPE EKU5-T2-40-1PN275S EKU5-T2-40-1PN320S EKU5-T2-40-1PN385S EKU5-T2-40-1PN440S
3P+NPE EKU5-T2-40-3PN275S EKU5-T2-40-3PN320S EKU5-T2-40-3PN385S EKU5-T2-40-3PN440S

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Porduct Overview

EKU4-T2-40 Type 2 Imax 40kA 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

Download Files

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