3 Phase Lightning Protection Box 220V 100kA Sound / Light Alarm Surge Suppressor
Product Summary
Lightning protection box Featuring high current capacity (up to 100kA impulse current) and low residual voltage, M-LBS 5000 adopts pluggable lightning protection modules for easy maintenance and replacement. The built-in lightning status monitoring (counting) system accurately records lightning ...
Product Custom Attributes
3 Phase Lightning Protection Box
,Lightning Protection Box 220V
,Light Alarm Surge Suppressor
Basic Properties
Trading Properties
Product Description
Lightning protection box
Featuring high current capacity (up to 100kA impulse current) and low residual voltage, M-LBS 5000 adopts pluggable lightning protection modules for easy maintenance and replacement.
The built-in lightning status monitoring (counting) system accurately records lightning strikes, while the sound and light alarm function provides real-time alerts for SPD failures.
Wide-Range Application Scenarios
M-LBS 5000 is a high-performance three-phase AC power lightning protection box designed for LPZ 0B-1 and subsequent partitions.
It is specifically installed in equipment-intensive rooms such as communication base stations, broadcasting and television system rooms, computer rooms,
and medical equipment rooms to provide comprehensive lightning protection for three-phase AC distribution systems.

Product Features
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Pluggable Lightning Protection Modules |
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Modular Layered Protection |
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Intelligent Monitoring & Alarm System Built-in lightning strike counter and visual status indicators for real-time fault alerts. |
Product Specification

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Standards
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IEC 61643.11
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Models
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M-LBS 5000
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Parameter
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Nominal operating voltage Un
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220Vac(50Hz)
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Maximum continuous operating voltage Uc
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L-N:385Vac(50Hz),N-E:255Vac(50Hz)
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Power W
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30KW,45A(Line)
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L-N Impulse current(8/20μs)
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20kA
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50kA
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100kA
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Voltage protection level Up
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≤1000V
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≤1150V
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≤1250V
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Response time tA
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≤25ns
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Protection Circuit
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L1,L2,L3-N,N-E
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Auxiliary functions
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Number of lightning strikes, sound and light alarms, remote
signaling dry contacts
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Lightning stroke count
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Counting current range
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0.5A(8/20μs)-100kA(8/20μs)
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Counting digit
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0-999
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Installation method
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Auxiliary installation bracket; Hole spacing 330mmx263mm
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Screw torque
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5N*m
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Strip length
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12mm
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Wiring cross-sectional area
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6mm2-32mm2
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Product size
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510mmx370mmx140mm
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Shell material and flame retardant grade
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Cold rolled steel plate painted orange
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Deterioration indication
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LED green: OK; Red: Fail; SPD failure buzzer alarm
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Remote signaling contact type
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Normally closed and normally open switching contacts
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Remote signaling contact switching ability
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125 Vac / 1 A, 125 Vdc A / 0.2
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Maximum connection capacity of remote signaling
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2.5mm2
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Installation position
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Indoor
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Temperature range
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-40℃…+80℃
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Humidity range
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Relative humidity ≤ 95% (max 40 ℃)
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Notices
●Install the lightning protection box in a well-ventilated, dry indoor environment away from flammable and explosive materials.
●Use wiring with cross-sectional area 6mm²-32mm² and tighten screws to 5N·m torque.
●Ensure the grounding system meets requirements (ground resistance ≤4Ω) for optimal surge diversion.
●Regularly check the lightning strike count and status indicator—replace faulty modules immediately.
●The product is heavy; ensure the installation surface can bear its weight (product size: 510mmx370mmx140mm).
●Only qualified electricians are allowed to install, maintain, or replace modules to avoid electrical hazards.
FAQ
Q1: What is the maximum impulse current capacity of M-LBS 5000?
A1: It supports three impulse current levels: 20kA, 50kA, and 100kA (8/20μs waveform) to meet different protection requirements.
Q2: Does the product have a lightning strike counting function?
A2: Yes, it has a built-in lightning strike counting system with a counting range of 0.5A-100kA and counting digit of 0-999.
Q3: What is the alarm method for SPD failure?
A3: It adopts dual alarm methods: LED red indicator and buzzer alarm, and supports remote signaling through dry contacts.
Q4: Can the modules be replaced without power outage?
A4: The pluggable module design allows for hot-swapping, enabling module replacement without disconnecting the entire power supply.
Q5: What is the power capacity of M-LBS 5000?
A5: It has a power capacity of 30KW and a line current of 45A, suitable for large-scale three-phase power systems.
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