3 Phase Lightning Protection Box 220V 100kA Sound / Light Alarm Surge Suppressor
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.
Get in Touch
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