GENYINTL
Product Details
LPEP385-3/R/SMA-4 Combined Lightning Protection Junction Box
The LPEP385-3/R/SMA-4 Combined Lightning Protection Junction Box is primarily designed for joint wiring and surge overvoltage protection in power transformer load metering terminals, energy collection terminal boxes, and smart energy acquisition terminals.
Features & Applications
■ Integrated wiring transfer and distribution functionality.
■ Combined surge protection for power lines, RS485 signals, and GPRS antenna feeds.
■ Compatibility with both three-phase three-wire and three-phase four-wire terminal designs, simplifying inventory and installation.
■ Mounting hole positions consistent with existing energy metering junction boxes, enabling easy replacement or retrofitting.
■ Anti-tampering design: The bottom is sealed with PCB potting to deter unauthorized access.
Operating Conditions
Temperature: -40°C to +85°C
Humidity: 20%–95% RH (at 25°C)
Atmospheric Pressure: 86kPa~106kPa
Technical Specifications
|
Model Parameter |
LPEP385-3/R/SMA-4 |
||
|
POWER |
RS485 |
SMA |
|
|
Max. Continuous Voltage “Uc” |
385V |
8V |
27V |
|
Rated Voltage “Uo” |
220V |
5V |
5V |
|
“In” (8/20uS) |
10kA |
3kA |
3kA |
|
“Imax” |
20kA |
5kA |
5kA |
|
Protection Level “Up” |
＜1.5kV(8/20μs) |
＜25V(1kV/μs), ＜600V(1kV/μs) |
＜600V(1kV/μs) |
|
Protection Model |
L/N-PE |
line-line, line-PE |
Core-PE |
|
Connect Mode |
Series connection |
||
|
Wire cross-sectional area |
≥4mm2(Multi strand line) |
||
|
Insertion loss “Ae” |
- |
≤0.3dB |
≤0.3dB |
|
Response time “tA” |
≤100ns |
≤1ns |
≤100ns |
|
Transmission rate |
- |
10Mbit/S |
2000MHz |
|
Standard |
IEC61643、GB18802.1-2011、YD/T1235.1-2002、YD/T1542-2006 |
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|
Load Current “IL” |
10A |
500mA |
2A |
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