Shenzhen LLH Electrical Co., Ltd.
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability | 5000-10000 pieces/mouth |
| Delivery Time | 7-15 days |
| Packaging Details | box |
| Model | LPM 40-760/4 / LPM 50-760/4 |
| SPD Type | T2 (IEC 61643.11) |
| Nominal Operating Voltage (Un) | 690Vac(50Hz) |
| Maximum Continuous Operating Voltage (Uc) | 760Vac(50Hz) |
| Nominal Discharge Current (In) | 40kA/ 50kA |
| Maximum Discharge Current (Imax) | 80kA/ 100kA |
| Voltage Protection Level (Up) | ≤3.0kV (LPM 40) / ≤3.2kV (LPM 50) |
| Response Time | ≤25ns |
| Brand Name | LLH |
| Model Number | LPM 40-760/4 |
| Place of Origin | Guangdong Province.China |
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Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union | Supply Ability | 5000-10000 pieces/mouth |
| Delivery Time | 7-15 days | Packaging Details | box |
| Model | LPM 40-760/4 / LPM 50-760/4 | SPD Type | T2 (IEC 61643.11) |
| Nominal Operating Voltage (Un) | 690Vac(50Hz) | Maximum Continuous Operating Voltage (Uc) | 760Vac(50Hz) |
| Nominal Discharge Current (In) | 40kA/ 50kA | Maximum Discharge Current (Imax) | 80kA/ 100kA |
| Voltage Protection Level (Up) | ≤3.0kV (LPM 40) / ≤3.2kV (LPM 50) | Response Time | ≤25ns |
| Brand Name | LLH | Model Number | LPM 40-760/4 |
| Place of Origin | Guangdong Province.China | ||
| High Light | T2 SPD 690V ，Industrial T2 SPD ，T2 Surge Protector 40kA | ||
LPM 40-760/4/LPM 50-760/4 is a T2 level power surge protector specifically designed for wind power generation systems. It is engineered to withstand the high-voltage requirements of wind power systems (690Vac nominal voltage), providing reliable protection against transient overvoltages caused by lightning strikes and power grid fluctuations.
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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
Product Specification
| Standards | IEC 61643-11 |
| SPD type | T2 |
| Models |
LPM 40-760/4 LPM 50-760/4 |
| Nominal operating voltage Un | 690Vac(50Hz) |
| Maximum continuous operating voltage Uc | 760Vac(50Hz) |
| Nominal discharge current (8/20μs)In | 40kA/50kA |
| Maximum discharge current (8/20μs) Imax | 80kA/100kA |
| Voltage protection level In@Up | ≤3.0kV/≤3.2kV |
| 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 |
| Installation position | Indoor |
| Degrees of protection provided by enclosure | IP20 |
| Temperature range | -40℃…+80℃ |
| Humidity range | Relative humidity ≤ 95% (max 40 ℃) |
Notices
● Confirm the wind power system voltage matches 690Vac(50Hz) before installation.
● 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 wind power industry requirements (ground resistance ≤4Ω).
● The product is designed for indoor use in wind turbine control cabinets; avoid outdoor exposure.
● Select the appropriate model based on the required discharge current (40kA/50kA).
FAQ
Q1: What is the maximum continuous operating voltage of this product?
A1: The maximum continuous operating voltage (Uc) is 760Vac, suitable for 690Vac wind power systems.
Q2: Can it be used in solar power systems?
A2: No, this model is designed for high-voltage AC wind power systems. For solar PV systems, choose LPM PV series DC SPDs.
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.
Company Details
Business Type:
Manufacturer
Year Established:
2018
Total Annual:
1000000-10000000
Employee Number:
20~100
Ecer Certification：
Verified Supplier
Shenzhen Leilihai Electric Co., Ltd We are a high-tech enterprise that integrates the research and development, manufacturing, sales, and installation services of lightning protection devices and lightning protection system supporting products. The company has successively passed the German TUV cer... Shenzhen Leilihai Electric Co., Ltd We are a high-tech enterprise that integrates the research and development, manufacturing, sales, and installation services of lightning protection devices and lightning protection system supporting products. The company has successively passed the German TUV cer...
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