VP-24 Series Type 3 Signal SPD, VOZWEI
SPD according to EN/IEC 61643-11: Type 3
Max. continuous operating voltage Uc: DC 32 V
Impulse current Iimp (10/350 μs): 0.5 kA
Nominal discharge current In (8/20 μs) : 5 kA
Max. discharge current Imax (8/20 μs): 10 kA
Voltage protection level Up: L-L ≤ 55 V
L-PE ≤ 600 V
Application:
The product series adopts a multi-stage protection architecture. The front stage utilizes gas discharge tubes (GDTs) to withstand high lightning current impulses, while the rear stage employs low-capacitance TVS diodes for fast response speed. It provides protection for 1-pair and 2-pair lines, effectively safeguarding communication signal equipment from transient overvoltage interference and damage.
Featured:
* Normal discharge current In (8/20 s): 5 kA
* Max. dischasrge current Imax (8/20 us): 10 kA
* Max. continuous operating voltage Uc: DC 32 V
* Online hot-swappable capability
* High current-carrying capacity, low limiting voltage, fast response time
* Low transmission attenuation, maximum transmission rate: 10 Mbps
Technical parameters:
| Model | VP-24K2 |
| SPD according to EN/IEC 61643-11 | Type 3 |
| Protection mode | Common mode, differential mode |
| Protection line | L-L & L-PE |
| Nominal operating voltage Un | DC 24 V |
| Max. continuous operating voltage Uc | DC 32 V |
| Impact limit voltage (1 kV/μs) | < 40 V |
| Impulse current Iimp (10/350 μs) | 0.5 kA |
| Nominal discharge current In (8/20 μs) | 5 kA |
| Max. discharge current Imax (8/20 μs) | 10 kA |
| Leakage current | 700 mA |
| Normal/Fault Indication | Green/Red |
| Installation method | 35 mm DIN rail |
| Housing material | PBT UL94-V0 |
| Protection class | IP20 |
| Outline dimensions (without terminal) | 90 mm × 25 mm × 74.5 mm (tolerance ± 1 mm) |
| Insertion loss (at maximum load) | < 1 dB |
| Cut-off frequency | 3 Mbps |
| Max. series impedance | 1 Ω |
| Wiring method | Crimping frame connection |
| Grounding method | Compatible with rail grounding or dedicated port grounding |
Selection guide:
| Model | Un | Uc | Up | In | Imax | In-total | Protection mode | Operating Principle | Size |
| VP-24K2 | DC 24 V | DC 32 V | L-L ≤ 55 V L-PE ≤ 600 V | 5 kA | 10 kA | 20 kA | Common mode, differential mode | Figure 6.3.1 | Figure 6.4.1 |
| VP-24K4 | DC 24 V | DC 32 V | L-L ≤ 55 V L-PE ≤ 600 V | 5 kA | 10 kA | 40 kA | Common mode, differential mode | Figure 6.3.1 | Figure 6.4.1 |
Operating Principle:
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