Product Catalog · 2.68 MB
VPH750-25 Series Type 1 AC SPD
The VPH750-25 is a high-voltage Type 1 AC SPD designed for robust lightning protection. Supporting Uc up to 1500V AC, it handles extreme surges with an Iimp of 25 kA (10/350 μs). Featuring a protection level of Up ≤ 3.5 kV, it is fully EN/IEC 61643-11 compliant. Ideal for heavy-duty industrial and renewable energy systems requiring maximum durability.
Highlights
- High-voltage Type 1 protection supporting up to 1500V AC
- Withstands extreme lightning surges with Iimp of 25kA (10/350 μs)
- Low voltage protection level Up ≤ 3.5kV / ≤ 6.5 kV
- Fully EN/IEC 61643-11 compliant
Product Information
- Type: Type 1 AC surge protective device
- Maximum continuous operating voltage (Uc): 750V AC / 1500V AC
- Lightning impulse current (Iimp): 25kA (10/350 μs)
- Voltage protection level (Up): ≤ 3.5kV / ≤ 6.5 kV
- Standard Compliance: EN/IEC 61643-11
- High-voltage Type 1 protection for heavy-duty industrial and renewable energy systems
- Built for maximum durability against direct lightning impacts
Application:
Designed for the critical role of primary surge protection in new energy plants, this product is a high-impedance Type 1 AC SPD. It is installed at the main AC distribution point (LPZ0/LPZ1 boundary) of wind or solar farms, where it intercepts and diverts the massive energy of direct lightning strikes, providing the foundational defense for the entire power generation and grid-connection system.
Nomenclature:
VP □ □–□/□□
1 2 3 4 5
|
SN |
Name |
Specification, type code |
|
1 |
Design code |
VP |
|
2 |
Product Series |
H |
|
3 |
Max. continuous operating voltage Uc |
750: AC 750 V |
|
4 |
Impulse current Iimp (10/350 μs) |
25: 25 kA |
|
5 |
Protection mode |
3P: 3P; 3P+1P: 3P+1P; 4P: 4P |
Example: VPH750-25/3P+1P → Uc: AC 750 V; Iimp (10/350 μs): 25 kA; Protection mode: 3P+1P.
Technical parameters:
|
Model |
VPH750-25/3P |
|
SPD according to EN/IEC 61643-11 |
Type 1 |
|
Protection mode |
L-PE |
|
Nominal operating voltage Un |
AC 690 V 50/60 Hz |
|
Max. continuous operating voltage Uc |
AC 750 V 50/60 Hz |
|
25 kA |
|
|
Nominal discharge current In (8/20 μs) |
25 kA |
|
Voltage protection level Up |
≤ 3.5 kV |
|
Response time |
≤ 25 ns |
|
Max. backup fuse |
≤ 160 A gL/gG |
|
Cross-sectional area |
6 ~ 35 mm2 |
|
Stripping length terminals |
12.5 mm |
|
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 |
PBT UL94-V0 |
|
Protection class |
IP20 |
|
Operating temperature |
-40 °C ~ +85 °C |
|
Relative humidity |
≤ 95% (25 °C) |
|
Operating altitude |
≤ 4000 m |
|
Outline dimensions (without terminal) |
90.0 mm × 108.0 mm × 65.5 mm (tolerance ± 1 mm) |
|
Internal protection device |
The lightning protection unit has a built-in thermal trip device |
|
Limited voltage @ 5 kA |
≤ 2.5 kV |
|
Short-circuit withstand capability |
25 kArms |
|
Transient overvoltage (TOV), UT |
1000 V / 5 s tolerance |
Selection guide:
|
Model |
Un |
Uc |
Up |
In |
Iimp |
Protection mode |
Operating Principle |
Size |
|
VPH750-25/3P |
AC 690 V |
AC 750 V |
3.5 kV |
25 kA |
25 kA |
L-PE |
Figure 1.3.1 |
Figure 1.4.1 |
|
AC 1140 V |
AC 1500 V |
6.5 kV |
25 kA |
25 kA |
L-PE |
Figure 1.3.2 |
Figure 1.4.2 |
|
|
VPH750-25/4P |
AC 690 V |
AC 750 V |
3.5 kV |
25 kA |
25 kA |
L-PE & N-PE |
Figure 1.3.3 |
Figure 1.4.3 |
Operating Principle:





| File name | Type | Size | Actions |
|---|---|---|---|
| VOZWEI-SPD-Catalog.pdf | Product Catalog | 2.68 MB |
Q: What is the VPH750-25 Series?
A: It is a high-voltage Type 1 AC surge protective device designed for robust lightning protection.
Q: What is its maximum continuous operating voltage?
A: It supports a maximum continuous operating voltage (Uc) of 750V AC.
Q: What lightning impulse current does it handle?
A: It handles a lightning impulse current (Iimp) of 25kA (10/350 μs).
Q: What is its voltage protection level?
A: It features a voltage protection level (Up) of ≤ 3.5kV.
Q: What applications is it suitable for?
A: It is ideal for heavy-duty industrial and renewable energy systems requiring maximum durability.
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