Shenzhen LLH Electrical Co., Ltd.
| Max Continuous Heat Rating | Stable operation at 70℃ sealed cabinet |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Ideal Application | Single-phase secondary indoor panels with large temperature fluctuation |
| Supply Ability | 6000 pieces/month |
| Low Temp Safety Design | Built-in ultra-low temperature thermal release |
| Ingress Protection Grade | IP20 for indoor distribution cabinets |
| Delivery Time | 5-8 work days |
| Housing Flame Standard | Mineral Nylon PA6 UL94 V0 |
| Packaging Details | 1 piece/box |
| Full Operating Temperature Band | -40℃ ~ +70℃ |
| Model Number | LPM 20-275/2 |
| Certification | CE,TUV |
| Place of Origin | China |
| Brand Name | LLH |
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Product Specification
| Max Continuous Heat Rating | Stable operation at 70℃ sealed cabinet | Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Ideal Application | Single-phase secondary indoor panels with large temperature fluctuation | Supply Ability | 6000 pieces/month |
| Low Temp Safety Design | Built-in ultra-low temperature thermal release | Ingress Protection Grade | IP20 for indoor distribution cabinets |
| Delivery Time | 5-8 work days | Housing Flame Standard | Mineral Nylon PA6 UL94 V0 |
| Packaging Details | 1 piece/box | Full Operating Temperature Band | -40℃ ~ +70℃ |
| Model Number | LPM 20-275/2 | Certification | CE,TUV |
| Place of Origin | China | Brand Name | LLH |
| High Light | Single Phase Surge Arrester with TUV CE ，Indoor Type2 Lightning Protector ，Cold Resistant AC Surge Arrester | ||
Wide-temperature 2-pole single-phase Type2 surge arrester designed for indoor cabinets with large temperature fluctuations, rated from -40℃ frigid to 70℃ sealed high-temperature enclosures, different from standard secondary SPDs limited to 60℃ max. Surge capacity, residual voltage and thermal trip performance remain consistent through hot-cold cycling. Dual protection circuit with 20kA nominal and 40kA maximum discharge current, built-in dedicated ultra-low temperature thermal release prevents unnecessary circuit disconnection in cold ambient while isolating faulty modules automatically under high heat overload. Equipped with green-red status window and passive remote contacts, PA6 V0 flame retardant housing, plug-in 35mm DIN rail design with multiple Uc grades, suitable for cold northern retail shops, unventilated summer distribution boxes, warehouse single-phase panels and residential solar inverter cabinets with extreme temperature shifts.
| Product features |
| 1.Module pluggable and anti vibration design |
| 2.Built-in ultra-low temperature release mechanism |
| 3.Application scenarios:Suitable for installation in LPZ 0B-1 and subsequent lightning protection zones, used as a lightning arrester for single-phase power supply systems. |
Product Certificate
Products Description
| Standards | IEC 61643-11 |
| SPD type | T2 |
| Models |
LPM 20-275/2 LPM 20-385/2 LPM 20-440/2 |
| Nominal operating voltage Un | 220Vac(50Hz) |
| Maximum continuous operating voltage Uc | 275Vac/320Vac/385Vac/440Vac(50Hz) |
| Nominal discharge current (8/20μs)In | 20kA |
| Maximum discharge current (8/20μs) Imax | 40kA |
| Voltage protection level In@Up |
LPM 20-275/2:≤1.25kV LPM 20-385/2:≤1.8kV LPM 20-440/2:≤2.0kV |
| Response time tA |
|
| Protection Circuit | L,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 | 90mmx36mmx68mm |
| Shell material and flame retardant grade | Mineral nylon PA6, V0 |
| Deterioration indication | Window green: OK; 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℃…+70℃ |
| Humidity range | Relative humidity ≤ 95% (max 40 ℃) |
| Certification | TUV,CE |
Application Scenario
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| Photovoltaic Power Generation | Wind Power Generation | Wind Power Generation |
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| Data Room | Charging Station | City Highway |
FAQ
Q1: What does your company do?
A1: We are a high-tech enterprise specializing in the research, development, manufacturing, sales,and installation services of lightning arresters and related products.
Q2: What products do you offer?
A2: Our product range includes ultra-low residual voltage lightning arresters, lightning protection boxes, modules,composite lightning arresters, signal lightning arresters, and more.
Q3: Which industries do your products apply to?
A3: Our products are widely used in industries such as telecommunications, power, petroleum, transportation, and security.
Q4: Do you accept OEM and ODM orders?
A4: Yes, we welcome OEM and ODM cooperation to provide customized solutions.
Q5: Can it run continuously at 70℃ inside fully sealed zero-ventilation cabinets?
A5: 70℃ is the maximum rated operating point; basic cabinet ventilation guarantees long-term stable performance.
Q6: Will thermal trip falsely activate in -40℃ cold storage rooms?
A6: Custom low-temperature mechanism only triggers disconnection upon module overheating failure, no false action under normal cold ambient.
Q7: Does wide-temperature construction increase overall module width?
A7: Fixed 36mm standard 2-pole DIN footprint matches regular Type2 SPD dimensions without extra cabinet space occupation.
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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