LT-25T T1+T2 Wind power surge protection device
Mainly used for providing T1 lightning protection for various electronic and electrical equipment susceptible to lightning overvoltage in buildings.Mainly used as Tl protection for the main distribution system.
Characteristic
Location of Use: main distribution cabinet, JP cabinet etc. Rated Voltage Systems: TN-S, TN-C, TT
Mode of Protection： L-PE, N-PE, L-N
Protective Elements: High Energy Graphite
Chinese Standard: GB/T 18802.11-2020
IECstandard: IEC61643-11:2011
European standard： EN 61643-11： 2011 Certificates: TUV, CE, CQC
Technical Dara
| Max Continuous Operating Voltage | (AC) Uc | 275V | 320V | 385V | 440V |
| Rated Voltage | (AC) Un | 220V | 220V | 220V | 220V |
| Maximum impact current(T1) | limp | 15kA | 15kA | 15kA | 15kA |
| Protection level | Up(L-N) | 1.2 kV | 1.4kV | 1.6kV | 2.0kV |
| Protection level | Up(N-PE) | 1.6kV | 1.6kV | 1.6kV | 1.6kV |
| Follow Current Interrupt Rating | 300A | ||||
| Response Time | tA | 25ns | |||
| Back up fuse | LT-SSD15X | ||||
| TOV | N-PE | 1200V | |||
| Residual current-Leakage current at Uc | lpe | NONE | |||
| Admissible short-circuit current | Isccr | 50000A | |||
| Remote communication | With | ||||
| Remote communication connection | 1411:NO,1112:NC | ||||
| Remote contact rated current | 220V/0.5A | ||||
Associated disconnectors
| Thermal disconnector | internal |
| ground fault breaker | None |
Mechnical characteristics
| Connection | By screw terminals:6-25 mm² |
| Terminal Screw Torque | 2.5 Nm |
| Recommended Cable cross Section | ≥16mm2 |
| Insert wire length | 15mm |
| Mounting | DIN rail 35mm(EN60715) |
| Degree of Protection | IP20 |
| Housing | PS |
| Flame retardant grade | UL94 V0 |
| Operating temperature | 40℃~+70℃ |
| Operating relative humidity | 5%-95% |
| Working atmospheric pressure | 70kPa～ 106kPa |
Size
| Poles | 1P | 1+NPE | 2P | 3P | 4P | 3+NPE |
| Size(mm) | 36×90×72 | 72×90×72 | 72×90×72 | 108×90×72 | 144×90×72 | 144×90×72 |
| Packing | Inner box | |||||
| Delivery packaging | Carton or Pallet | |||||
Dimensional drawing
