T2 T3 Lightning Surge Protection Device 3 Phase AC SPD 220V 20kA 40kA
| Product features |
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● Full mode protection
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● No leakage current, no afterflow
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● Large flow capacity and super low residual pressure
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● Suitable for installation in LPZ 1-2 and subsequent lightning protection zones, suitable for fine lightning protection devices in three-phase power supply systems.
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Product Specification
| Standards | IEC 61643.11 |
| SPD type | T2,T3 |
| Models |
SLV-40T SLV-80T |
| Nominal operating voltage Un | 220Vac(50Hz) |
| Maximum continuous operating voltage Uc | 320Vac(50Hz) |
| Nominal discharge current (8/20μs) In | 20kA/40kA |
| Maximum discharge current (8/20μs) Imax | 40kA/80kA |
| Voltage protection level In@Up | ≤1.25kV/≤1.8kV |
| L123-N,L123-E,N-E(3kA&6kV) Uoc | ≤650V |
| Response time tA | ≤25ns |
| Protection Circuit | L1,L2,L3-N,L1,L2,L3-E,N-E |
| Counting current range | 0.5kA(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 |
SLV-40T:178mmx116mmx75mm SLV-80T:197mmx139mmx90mm |
| Shell material and surface technology | Cold rolled steel plate painted black |
| Deterioration indication | LED green: OK; Off: Fail |
| Remote signaling contact type | Normally closed and normally open switching contacts |
| Remote signaling contact switching ability | 125 Vac / 1 A, 125 Vdc A / 0.2 |
| Maximum connection capacity of remote signaling | 2.5mm² |
| Installation position | Indoor |
| Degrees of protection provided by enclosure | IP20 |
| Temperature range | -40℃…+80℃ |
| Humidity range | Relative humidity ≤ 95% (max 40 ℃) |
Notices
1.Install the SPD in LPZ 1-2 or subsequent lightning protection zones, ensuring the distance to protected equipment does not exceed 10 meters.
2.Use wiring with cross-sectional area 2.5mm²-10mm² and tighten screws to 5N·m torque for secure connections.
3.Ensure reliable grounding with a ground resistance ≤4Ω to guarantee surge current diversion efficiency.
4.Replace the SPD immediately if the LED indicator turns off (failed status) or after experiencing a severe surge impact.
5.Do not disassemble the product by yourself; improper operation may damage internal components and cause safety risks.
6.Avoid using the product in environments beyond the specified temperature (-40℃~+80℃) and humidity range
FAQ
Q1: What is the difference between SLV-40T and SLV-80T?
A1: The core difference is nominal discharge current (In) and maximum discharge current (Imax): SLV-40T has In=20kA/Imax=40kA, while SLV-80T has In=40kA/Imax=80kA. Other performance parameters and structural design are consistent.
Q2: Can this SPD be used for single-phase power systems?
A2: No, SLV-40T/SLV-80T is specifically designed for three-phase systems. For single-phase applications, choose SLV-40S/SLV-80S series products.
Q3: What is the function of remote signaling contacts?
A3: The normally closed and normally open switching contacts allow connection to monitoring systems, enabling remote alerts when the SPD fails.
Q4: Does the product require regular maintenance?
A4: Regular visual inspection is recommended (quarterly): check LED status and wiring tightness. No additional maintenance is needed under normal operating conditions.
Q5: Is the SPD compatible with different grounding systems?
A5: Yes, it is compatible with TN, TT, and IT grounding systems, as long as the grounding resistance meets the requirement (≤4Ω).
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