Final Level Surge Protection Device Spd 12Vdc 2kA 3kA T2 T3 Sensitive Electronics Precision Device
Product Summary
LS-P Series is a T2+T3 level power surge protection device designed for final-level equipment lightning protection in AC and DC power systems, suitable for installation in LPZ 2-3 and subsequent lightning protection zones. As a series-installed fine arrester at the front end of equipment, it ...
Product Custom Attributes
Surge Protection Device Spd 12Vdc
,Final Level Surge Protector
,T3 Surge Protection Device Spd
Basic Properties
Trading Properties
Product Description
LS-P Series is a T2+T3 level power surge protection device designed for final-level equipment lightning protection in AC and DC power systems, suitable for installation in LPZ 2-3 and subsequent lightning protection zones. As a series-installed fine arrester at the front end of equipment, it provides targeted protection for sensitive electronics and precision devices.
Featuring two ports and full-mode protection, the product offers comprehensive shielding against surges in line-line and line-earth paths. The compact size (90mmx36mmx68mm) and 35mm DIN Rail mounting make it suitable for space-constrained environments such as equipment cabinets and control panels. The PA66 housing (V0 flame-retardant grade) offers excellent fire resistance and durability.
| Product Features |
● Two ports, full mode protection |
● Small size and easy installation |
● Suitable for installation in LPZ 2-3 and subsequent lightning protection zones, used for lightning protection of final level equipment in AC and DC power systems, and a fine lightning arrester installed in series at the front level of the equipment. |
Product Specification
Standards | IEC 61643-11 | ||||
SPD type | T2,T3 | ||||
Models | LS-P12 | LS-P24 | LS-P48 | LS-P110 | LS-P220 |
Electrical parameters | |||||
Nominal operating voltage Un | 12Vdc | 24Vdc | 482Vdc | 110Vdc | 220Vdc |
Maximum continuous operating voltage Uc | 18Vdc | 32Vdc | 60Vdc | 160Vdc | 320Vac |
Nominal discharge current (8/20μs)In | 2kA | 5kA | |||
Maximum discharge current (8/20μs) Imax | 3kA | 10kA | |||
Voltage protection level In@Up | ≤150V | ≤200V | ≤300V | ≤500V | ≤1.25kV |
Response time tA | ≤25ns | ||||
Load current IL | 5A | ||||
failure mode | open circuit | ||||
Deterioration indication | LED green: OK; Off: Fail | ||||
Protection Circuit | L1-L2,L1-E,L2-E | ||||
Installation method | DIN Rail 35mm |
Screw torque | 1N*m |
Strip length | 10mm |
Wiring cross-sectional area | 0.75mm²-2.5mm² |
Product size | 90mmx36mmx68mm |
Shell material and flame retardant grade | PA66,VO |
Installation position | Indoor |
Degrees of protection provided by enclosure | IP20 |
Temperature range | -40℃…+80℃ |
Humidity range | Relative humidity ≤ 95% (max 40 ℃) |
Notices
●This product is a final-level protector, should be installed as close as possible to the protected equipment (distance ≤5m).
●Use wiring with cross-sectional area 0.75mm²-2.5mm² and tighten screws to 1N·m torque.
●Ensure reliable grounding with ground resistance ≤4Ω to guarantee protection effect.
●Do not exceed the maximum load current (5A) to avoid overheating or equipment damage.
●Replace the SPD immediately if the LED indicator is off (failure status) or after severe surge impact.
●Select the appropriate model based on the power system type (DC/AC) and voltage.
FAQ
Q1: What is the load current capacity of LS-P Series?
A1: The maximum load current is 5A, suitable for low-power sensitive equipment and electronics.
Q2: Can LS-P220 be used for DC 220V systems?
A2: No, LS-P220 is specifically designed for AC 220Vac systems. For DC 220V applications, consult technical support for dedicated models.
Q3: What is the failure mode of this SPD?
A3: It adopts open-circuit failure mode, which automatically disconnects from the circuit when faulty to avoid short circuits or other hazards.
Q4: Is the product compatible with smart home systems?
A4: Yes, its compact size and low leakage current make it suitable for integration into smart home control systems.
Q5: How to test if the SPD is working normally?
A5: Use a surge generator to simulate transient overvoltage; if the SPD diverts the surge current and limits the voltage to the specified level, it is working normally. Regular visual inspection of the product (no physical damage) is also recommended.
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