Type2 Single Phase Surge Protection Device, 20kA Nominal Discharge 2P Indoor Secondary AC Lightning Arrester
About this item
This Class II surge protection device complies with IEC 61643-11, designed for 220Vac single-phase AC power systems in LPZ0B and subsequent secondary lightning protection zones, with independent L-N and N-E dual protection circuits. It features 20kA nominal discharge current and 40kA maximum discharge current under 8/20μs waveform, with multiple Uc ratings from 275Vac to 440Vac to fit grid voltage fluctuations worldwide. ≤25ns fast response clamps transient overvoltage with minimum residual voltage ≤1.25kV. Vibration-resistant pluggable modules integrate ultra-low temperature thermal release, paired with green-red degradation indicator and NO/NC passive remote signalling contacts. PA6 V0 flame retardant housing ensures stable indoor operation from -40℃ to +70℃. Widely applied in residential, retail and small factory single-phase sub-distribution boards to suppress induced surges and switching transients for low-voltage loads.
| 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: Where should Type2 SPD be installed in power distribution systems?
A: It fits secondary LPS zones starting from LPZ0B, installed in household consumer units and workshop single-phase sub-panels.
Q: How to select suitable Uc voltage grade?
A: 275Vac for standard 220V mains; 320/385/440Vac for grids with wide voltage fluctuation or overseas single-phase power supply.
Q: Does remote signalling require external auxiliary power?
A: Passive dry contacts transmit fault signals without additional power supply input.
Q: Do you accept OEM and ODM orders?
A: Yes, we welcome OEM and ODM cooperation to provide customized solutions.
Q: How do you ensure product quality and after-sales service?
A: We prioritize product quality and customer satisfaction, offering excellent after-sales service and ensuring our products meetthe highest standards.
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