Wide Temperature Single Phase Surge Arrester, -40℃~+70℃ 2P Indoor Type2 Cold Resistant AC Lightning Protector
About this item
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 |
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| 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.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.