LT-7T 1T-12.5T T1+T2+T3 multi-purpose ,high energy MOV and GDT for AC surge protector
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： 2012 Certificates: TUV, CE, CQC
Technical Dara
Technical Data | L-N | N-PE | ||
Max Continuous Operating Voltage | (AC)Uc | 255V | 255V | 255V |
Rate Voltage | (AC) Un | 220V | 220V | 220V |
Maximum impact current(T1) | limp | 7kA | 12.5 kA | 25 kA |
Nominal Discharge Current (T2) | In | 7kA | 12.5 kA | 25 kA |
Open circuit voltage(T3) | Uoc | 20kV | 20 kV | 20 kV |
Protection Level | Up | 1.25kV | 1.25kV | 1.5kV |
Follow Current Interrupt Rating | 300A | 300A | 100A | |
Response Time | ta | 25ns | 25ns | 100ns |
Back up fuse | LT-SSD15X | |||
TOV | N-PE | 1200V | ||
Residual current-Leakage current at Uc | lpe | NONE | ||
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+NPE | |||
| Size(mm) | 36×83×70.5 | |||
| Packing | Inner box | |||
| Delivery packaging | Carton or Pallet | |||
Dimensional drawing
