Product introduction
LK-SPD50K420A/4/J voltage switch modularity high energy lightning module have followed IEC standard design , single module’s surge current can up to 50kA(10/350μs),which is applicable to first level lightning protection of high risk area and assembles 380V power distribution system
Our product adopts module design with good leakproofness, matches 35mm electric guide rail with easy installation, which owns low residual voltage, fast response speed, big discharge current capacity ,long life ,complete range and simple maintenance. We can provide customization service to customers if they need
◆35mm electric guide rail
◆High energy SPD
◆10/350μS waveform
◆ no follow current
Technical Parameter
Model | LK-SPD50K420A/4/J |
Housing protection material | PBT/PA-F |
Housing flame retardant rating | UL94-V0 |
Housing protection class | IP20 |
Color | grey white |
Install Standard | 35mm DIN guide rail |
Wiring port quantity | 4PIN |
Operation temperature | -45~+85℃ |
Relative humidity | ≤95% |
Damage state | turnoff state |
Protection mode | L-PE、N-PE |
Dimension | 140×101×77 |
Weight(kg) | 0.9 |
Main reference standard | IEC61643-1和GB 18802.1—2002 |
Lightning protection level | A level |
SPD type | one port |
Applicable power supply system type | TT,TN,IT |
Rated voltage | 380V AC |
Maximum continuous –running voltage | 420V AC |
Operation voltage | ≥620V DC |
Rated work frequency | 50Hz(60Hz) |
Leakage current | ≤10μA |
Nominal discharge current (10/350)μs | 25kA |
Maximum discharge current(10/350)μs | 50kA |
Voltage protection level(10/350)μs Up | ≤3.0kV |
Response time | <100nS |
Main circuit connection parameter | |
L(N)interface type | Bolt fixed terminal |
Bolt standard | M5 |
SPD connection lead minimum section | BVR-10mm2 |
SPD connection lead maximum section | BVR-25mm2 |
PE interface type | Bolt fixed terminal |
Bolt specification | M5 |
PE connection lead minimum section | BVR-10mm2 |
PE connection lead maximum section | BVR-25mm2 |
Product application range
◆Construction low voltage power distribution cabinet \ distribution board
◆Outdoor power distribution cabinet
◆Lightning discharge record environment
◆Applicable power supply system type :TT,TN