20kA Nominal 40kA Max Single Phase Surge Arrester, 2P DIN Rail Secondary Induced Surge Protector
Product Summary
About this item 2-pole single-phase secondary surge arrester with high surge capacity, rated 20kA nominal discharge and 40kA maximum discharge under 8/20μs waveform. It withstands frequent daily grid induced surges and short-term heavy overvoltage impacts. Dual independent L-N and N-E diversion ...
Product Custom Attributes
20kA single phase surge arrester
,2P DIN rail surge protector
,TUV CE certified SPD
Basic Properties
Trading Properties
Product Description
About this item
2-pole single-phase secondary surge arrester with high surge capacity, rated 20kA nominal discharge and 40kA maximum discharge under 8/20μs waveform. It withstands frequent daily grid induced surges and short-term heavy overvoltage impacts. Dual independent L-N and N-E diversion circuits with ≤25ns nanosecond response suppress voltage spikes rapidly, residual voltage controlled from 1.25kV to 2.0kV for different Uc models. Plug-in modular design allows single faulty cartridge replacement on site; built-in low-temperature trip prevents accidental disconnection in cold cabinets. Equipped with green-red status window and passive remote contacts, 35mm DIN rail compatible footprint, PA6 V0 flame retardant housing stable from -40℃ to +70℃ indoors. Suitable for household consumer units, retail panels, small solar single-phase inverter cabinets and EV charger auxiliary circuit lightning protection.
| 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: What working conditions do 20kA and 40kA represent respectively?
A5: 20kA is the repetitive surge capacity for daily operation; 40kA is the one-time peak impulse withstand rating.
Q6:What working conditions do 20kA and 40kA represent respectively?
A: 20kA is the repetitive surge capacity for daily operation; 40kA is the one-time peak impulse withstand rating.
Q7:Is 40kA rating suitable for household consumer units in thunder-prone areas?
A: This capacity is recommended for secondary single-phase panels in frequent lightning zones to enhance long-term surge resistance.
Q8:Is full unit replacement required after heavy surge hits?
A: Only replace the pluggable cartridge once red failure indicator appears, no full disassembly needed.
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