VPD48-40 Series Type 2 DC SPD
- Nominal discharge current In (8/20 us): 20 kA
- Max. discharge current Imax (8/20 us): 40 kA
- Max. continuous operating voltage Uc: DC 85 V
- Selectable circuit protection modes: 1P / 2P
- Utilizing high-performance metal oxide varistor (MOV) technology, the device offers high temporary overvoltage (TOV) withstand capability and provides excellent voltage limiting performance
- Modular pluggable anti-loosening structure, enabling simple installation and easy maintenance
Application:
The product is safe and reliable, with strong grid adaptability. It provides protection between lines and between lines and protective earth (PE) for various DC voltage system ports, effectively safeguarding sensitive electrical equipment against damage caused by direct lightning strikes or induced transient overvoltages.
Nomenclature:
VP □ □–□/□□
1 2 3 4 5
SN | Name | Specification, type code |
1 | Design code | VP |
2 | Product Series | D |
3 | Nominal operating voltage Un | 48: DC 48 V |
4 | Max. discharge current Imax | 40: 40 kA; |
5 | Protection mode | 1P: 1P; 2P: 2P |
Example: VPD48-40/2P → Un: DC 48 V; Imax: 40 kA; Protection mode: 2P.
Technical parameters:
Model | |
SPD according to EN/IEC 61643-11 | Type 2 |
V+-PE & V--PE | |
Nominal operating voltage Un | DC 48 V |
Max. continuous operating voltage Uc | DC 85 V |
Nominal discharge current In (8/20 μs) | 20 kA |
Max. discharge current Imax (8/20 μs) | 40 kA |
Voltage protection level Up | ≤ 0.6 kV |
Leakage current | ≤ 20 μA |
Response time | ≤ 25 ns |
Cross-sectional area | 6 ~ 25 mm2 |
Tightening torque | 3 N·m |
Normal/Fault Indication | Green/Red |
Remote signaling mode | RSC: Remote Signal Contact, NC-COM-NO contact |
Performances of remote signal contact | AC: 250 V/0.5 A; DC: 250 V/0.1 A, 125 V/0.2 A, 75 V/0.5 A |
Remote cross-sectional area | Max. 1.5 mm2 |
Installation method | 35 mm DIN rail |
Housing material | UL94-V0 |
Protection class | IP20 |
Selection guide:
Model | Un | Uc | Up | In | Imax | Protection mode | Operating Principle | Size |
VPD48-40/1P | DC 48 V | DC 85 V | 0.6 kV | 20 kA | 40 kA | V+/V--PE | Figure 2.1.1 | Figure 2.2.1 |
VPD48-40/2P | DC 48 V | DC 85 V | 0.6 kV | 20 kA | 40 kA | V+-PE & V--PE | Figure 2.1.2 | Figure 2.2.2 |
Operating Principle:
Documentation
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