● Standard: IEC/EN 61643-11
● Surge Rating: Iimp=7kA (10/350 µs), In=25kA (8/20 µs)
● IEC/EN Category: Class I+II / Type 1+2
● Max. continuous operating voltage: 150, 275, 320, 385, 440V
● Housing: Pluggable Design
EKU5-T1+T2-7 is a series of Class I+II Iimp 7kA 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.
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 |
Maximum continuous operating voltage (L-N) | Uc | 150V | 275V | 320V | 385V | 440V |
Maximum continuous operating voltage (N-PE) | Uc | 255V | ||||
Impulse discharge current (10/350μs) | Iimp | 7kA | ||||
Norminal discharge current (8/20μs) | In | 25kA | ||||
Maximum discharge current (8/20μs) | Imax | 50kA | ||||
Voltage protection level (L-N)/(N-PE) | Up | 1.2kV/1.5kV | 1.4kV/1.5kV | 1.6kV/1.5kV | 1.8kV/1.5kV | 2.0kV/1.5kV |
Voltage protection level 5kA | Up | 1.0kV | 1.2kV | 1.4kV | 1.5kV | 1.6kV |
Response time (L-N)/(N-PE) | tA | ≤25ns/≤100ns | ||||
Operating temperature range | Tu | -40℃ to +80℃ | ||||
Max. Back-up fuse | 160 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) |
No. of Poles |
Max. Continuous Operating AC Voltage |
||||
150V | 275V | 320V | 385V | 440V | |
1P |
EKU5-T1+T2-7-1P150 |
EKU5-T1+T2-7-1P275 |
EKU5-T1+T2-7-1P320 |
EKU5-T1+T2-7-1P385 |
EKU5-T1+T2-7-1P440 |
2P |
EKU5-T1+T2-7-2P150 |
EKU5-T1+T2-7-2P275 |
EKU5-T1+T2-7-2P320 |
EKU5-T1+T2-7-2P385 |
EKU5-T1+T2-7-2P440 |
3P |
EKU5-T1+T2-7-3P150 |
EKU5-T1+T2-7-3P275 |
EKU5-T1+T2-7-3P320 |
EKU5-T1+T2-7-3P385 |
EKU5-T1+T2-7-3P440 |
4P |
EKU5-T1+T2-7-4P150 |
EKU5-T1+T2-7-4P275 |
EKU5-T1+T2-7-4P320 |
EKU5-T1+T2-7-4P385 |
EKU5-T1+T2-7-4P440 |
1P+NPE |
EKU5-T1+T2-7-1PN150 |
EKU5-T1+T2-7-1PN275 |
EKU5-T1+T2-7-1PN320 |
EKU5-T1+T2-7-1PN385 |
EKU5-T1+T2-7-1PN440 |
3P+NPE |
EKU5-T1+T2-7-3PN150 |
EKU5-T1+T2-7-3PN275 |
EKU5-T1+T2-7-3PN320 |
EKU5-T1+T2-7-3PN385 |
EKU5-T1+T2-7-3PN440 |
With Remote Signaling | |||||
1P |
EKU5-T1+T2-7-1P150S |
EKU5-T1+T2-7-1P275S |
EKU5-T1+T2-7-1P320S |
EKU5-T1+T2-7-1P385S |
EKU5-T1+T2-7-1P440S |
2P |
EKU5-T1+T2-7-2P150S |
EKU5-T1+T2-7-2P275S |
EKU5-T1+T2-7-2P320S |
EKU5-T1+T2-7-2P385S |
EKU5-T1+T2-7-2P440S |
3P |
EKU5-T1+T2-7-3P150S |
EKU5-T1+T2-7-3P275S |
EKU5-T1+T2-7-3P320S |
EKU5-T1+T2-7-3P385S |
EKU5-T1+T2-7-3P440S |
4P |
EKU5-T1+T2-7-4P150S |
EKU5-T1+T2-7-4P275S |
EKU5-T1+T2-7-4P320S |
EKU5-T1+T2-7-4P385S |
EKU5-T1+T2-7-4P440S |
1P+NPE |
EKU5-T1+T2-7-1PN150S |
EKU5-T1+T2-7-1PN275S |
EKU5-T1+T2-7-1PN320S |
EKU5-T1+T2-7-1PN385S |
EKU5-T1+T2-7-1PN440S |
3P+NPE |
EKU5-T1+T2-7-3PN150S |
EKU5-T1+T2-7-3PN275S |
EKU5-T1+T2-7-3PN320S |
EKU5-T1+T2-7-3PN385S |
EKU5-T1+T2-7-3PN440S |
EKU5-T1+T2-7 is a series of Class I+II Iimp 7kA 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.