LT-7T 1T-12.5T T1+T2+T3 multi-purpose ,high energy MOV and GDT for AC surge protector
The surge protection device belongs to T1+T2+T3 AC power surge protector,which is installed between the power supply network and the equipment to drain,suppress and reduce the overcurrent and overvoltage caused by induced lightning strikes or the power grid system,so as to reduce the karm to the olectrical eguipment
Characteristic
Location of Use:sub-distribution cabinet,JP cabinet etc.
Network Systems:TN-S,TN-C,TT
Mode of Protection:L-PE,N-PE,L-PEN,L-N
Protective Elements:High Energy MOV,Gas Discharge tube
Chinese Standard:GB/T 18802.11-2020
IEC standard:IEC 61643-11:2011
European standard:EN 61643-11: 2012
Certificates:CE
| Technical Data | L-N | N-PE | ||
| Max Continuous Operating Voltage | (AC)Uc | 255V | 255V | 255V |
| Rated Voltage | (AC)Un | 220V | 220V | 220V |
| Maximum impact current(T1) | Iimp | 7 kA | 12.5 kA | 25 kA |
| Nominal discharge current(T2) | In | 7 kA | 12.5 kA | 25 kA |
| open circuit voltage(T3 | Uoc | 20 kV | 20 kV | 20 kV |
| Protection level | Up | 1.25kV | 1.25kV | 1.5kV |
| Eolow Current Interrupt Rating | Ifi | 300A | 300A | 100A |
| Response Time | tA | 25ns | 25ns | 100ns |
| SPD Special disconnector | Recommend | LT-SSD15X | ||
| TOV | N-PE | 1200V | ||
| Residual current-Leakage current at | lpe | NONE | ||
| Remote communication | With | |||
| Remote contact rated current | 220V/0.5A | |||
| Associated disconnector | |
| Thermal | disconnector internal |
Mechnical characteristics
| Connection By screw terminals | 6-35 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 | PBT/PA |
| Flame retardant grade | UL94 V0 |
| Operating temperature | -40℃~+70℃ |
| Operating relative humidity | 5%-95% |
| Working atmospheric pressure | 70kPa ～106kPa |
Size
| Poles | 1+NPE |
| Size (mm) | 36×83×70.5 |
| Packing | Inner box |
| Delivery packaging | Carton or Pallet |
Dimensional drawing
