Lightning Protection 3 Phase AC Whole House Surge Protectors 220V 20kA 40kA T2 SPD
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Benefits
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 Industrial-Grade Stability: Features optional mode protection and a reliable PCB design for stable, interference-resistant performance in harsh industrial environments. |
 Precise Surge Counting: Built-in lightning stroke counter (0.5kA–80kA, 0–999 digits) records surge occurrences for predictive maintenance. |
 Remote Monitoring: Remote signaling and status indication enable real-time operational monitoring and centralized management. |
Applications
Product Specification
| Standards | IEC 61643.11 |
| SPD type | T2 |
| Models | LPX-40C, LPX-80C |
| Nominal operating voltage Un | 220Vac(50Hz) |
| Maximum continuous operating voltage Uc | 385Vac(50Hz) |
| Nominal discharge current (8/20μs) In | 20kA, 40kA |
| Maximum discharge current (8/20μs) Imax | 40kA, 80kA |
| Voltage protection level Up | ≤1.25kV, ≤1.8kV |
| Response time tA | ≤25ns |
| Protection Circuit | L1,L2,L3-N,N-E |
| Lightning stroke range | 0.9kA(8/20μs)~80kA(8/20μs) |
| Counting digit | 0~999 |
Mechanical Parameters
| Installation method | 4 fixed holes, DIN Rail 35mm |
| Screw torque | 5N·m |
| Strip length | 12mm |
| Wiring cross-sectional area | 2.5mm²~10mm² |
| Product size | 178mm×116mm×75mm, 197mm×139mm×90mm |
| Shell material and surface technology | Cold rolled steel plate painted black |
| Alarm system - Deterioration indication | LED green: OK; Off: 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 |
1.Install the lightning protection box in a dry, well-ventilated indoor environment, and keep it away from flammable materials.
2.Use wires with a cross-sectional area of 2.5mm²~10mm², and tighten the screws to a torque of 5N·m.
3.Ensure reliable earthing, with a ground resistance ≤4Ω, to achieve optimal surge discharge effect.
4.Regularly check the lightning count and status indicator: if the product fails, the indicator will turn off. Replace the faulty device in a timely manner.
5.Do not connect the product to a power supply that exceeds its rated voltage and current.
6.Avoid using the product beyond the specified temperature and humidity ranges.
FAQ
A1: The counter can record lightning strikes with a discharge current ranging from 3kA(8/20μs) to 80kA(8/20μs), with a digital display range of 0 to 999.
A2: Yes. It is equipped with normally closed and normally open remote signaling contacts, allowing connection to a monitoring system for remote status tracking.
A3: The core difference lies in the maximum discharge current (Imax): LPX-40C has an Imax of 40kA, while LPX-80C has an Imax of 80kA, making them suitable for different system protection requirements.
A4: No. This product is designed for indoor use only. For outdoor applications, please select products with an IP67 protection level.
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