3 Phase Whole House Surge Protection Device 220V 40kA 50KA 80kA 100KA DIN Rail
LPM 40-385/4 Series is a T2 level power surge protector designed for three-phase power supply systems. It is specifically tailored for industrial and commercial power systems, providing reliable protection against transient overvoltages caused by lightning strikes and power grid fluctuations.
Product features
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● Independent integrated module for each pole
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● Built-in ultra-low temperature release mechanism
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● Equipped with indication windows and remote signaling contacts
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| ● Application scenarios:Suitable for installation in LPZ 0B-1 and subsequent lightning protection zones, used as lightning arrester for wind powergeneration systems. |
Product Features
| Standards | IEC 61643-11 |
| SPD type | T2 |
| Models |
LPM 40-385/4 LPM 50-385/4 LPM 80-385/4
LPM 100-385/4
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| Nominal operating voltage Un | 230Vac(50Hz) |
| Maximum continuous operating voltage Uc | 385Vac(50Hz) |
| Nominal discharge current (8/20μs)In | 40kA/50kA/80kA/100kA |
| Maximum discharge current (8/20μs) Imax | 80kA/100kA/160kA/200kA |
| Voltage protection level In@Up | ≤2.0kV/≤2.2kV/≤2.2kV/≤2.2kV |
| Response time tA | ≤25ns |
| Protection Circuit | L1,L2,L3,N-E |
Mechanical parameters
| Installation method | DIN Rail 35mm |
| Screw torque | 5N*m |
| Strip length | 12mm |
| Wiring cross-sectional area | 2.5mm²-32mm² |
| Product size | 90mmx144mmx68mm |
| Shell material and flame retardant grade | Mineral nylon PA6, V0 |
| Deterioration indication | Window red: Fail |
| Remote signaling contact type | Normally closed and normally open switching contacts |
| Remote signaling contact switching ability | 125Vac/1A,125Vdc/0.2A |
| Maximum connection capacity of remote signaling | 2.5mm² |
Notices
● Install the SPD in LPZ 0B-1 or subsequent lightning protection zones to ensure effective T2 protection.
● Use wiring with cross-sectional area 2.5mm²-32mm² and tighten screws to 5N·m torque.
● Regularly check the indication window—replace the product immediately if it turns red (failure status).
● Ensure the grounding system meets requirements (ground resistance ≤4Ω) for optimal surge diversion.
● Select the appropriate model based on the required discharge current (40kA/50kA/80kA/100kA).
● Avoid using the product beyond the specified temperature (-40℃~+80℃) and humidity range.
FAQ
Q1: What is the difference between the models in the series?
A1: The main difference is nominal discharge current (In) and maximum discharge current (Imax): LPM 40-385/4 (40kA/80kA), LPM 50-385/4 (50kA/100kA), LPM 80-385/4 (80kA/160kA), LPM 100-385/4 (100kA/200kA).
Q2: Does the product support remote monitoring?
A2: Yes, it is equipped with normally closed and normally open remote signaling contacts, enabling connection to monitoring systems for remote status tracking.
Q3: What is the function of the built-in ultra-low temperature release mechanism?
A3: It ensures the product operates safely in low-temperature environments (-40℃) and disconnects faulty modules to avoid hazards.
Q4: Can it be used in 400V three-phase systems?
A4: Yes, with maximum continuous operating voltage 385Vac, it is compatible with 400V three-phase systems (230V phase-neutral).
Q5: What is the flame-retardant grade of the housing?
A5: The housing is made of mineral nylon PA6 with V0 flame-retardant grade, which self-extinguishes within 10 seconds after ignition.
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