Skip to content CU7N series Surge Protection Device is suitable for TT, IT, TN-S, TN-C, and TN-C-S power systems with rated voltage up to 230/400V and frequency of 50/60Hz. It is typically installed in the incoming low-voltage distribution box of a building and can discharge lightning current up to 80kA.
Standard: IEC/EN 60898-1.
CU7N series Surge Protection Device is suitable for TT, IT, TN-S, TN-C, and TN-C-S power systems with rated voltage
up to 230/400V and frequency of 50/60Hz. It is typically installed in the incoming low-voltage distribution box of a building
and can discharge lightning current up to 80kA.
Standard: IEC/EN 60898-1.
Features
removable protective module 2 and base 1
please replace the removable protective module 2 at once.
| CU7N | – | T2 | 20kA | 2P | 275 |
| Model | Test Class | Lightning Impulse Current | Poles | Max Continuous Operational Voltage | |
| Surge Protective Device | T2 T1+T2 | 12.5kA,15kA,20kA, 40kA,60kA,80kA | 1,2,3,4, 1P+N,3P+N | T2: 150/275/385/440 T1+T2: 255/275/385/440 |
| Model | CU7N | ||||||
| Standard | IEC61643-1 | ||||||
| Rated operating voltage (Un) | 220V/380V | ||||||
| Test class | T2(8/20μs) | T1(10/350μs)+T2(8/20μs) | |||||
| Max continuous operating voltage Uc(V) | 150 | 275 | 385 | 440 | 440 | 255/275/385 | |
| Protection level UP(KV) | 0.6 | 1.2 | 1.8 | 2.4 | 2.5 | 2.0 | 2.0 |
| Nominal dicharge current 8/20µs In (kA) | 5 | 10 | 20 | 30 | 40 | 20 | |
| Maximum dicharge current 8/20µs Imax(kA) | 10 | 20 | 40 | 60 | 80 | 50 | |
| Lightning impulse current 10/350µs Limp(kA) | / | / | / | / | / | 12.5 | 15 |
| Response time (ns) | <2.5 | <100 | |||||
| Operating temperature | -40~+80°C | ||||||
