VPH750-25 Series Type 1 AC SPD, VOZWEI - Image 1

VPH750-25 Series Type 1 AC SPD, VOZWEI - Image 2

VPH750-25 Series Type 1 AC SPD, VOZWEI

SPD according to EN/IEC 61643-11: Type 1

Max. continuous operating voltage Uc: AC 750 V 50/60 Hz

Impulse current Iimp (10/350 μs): 25 kA

Nominal discharge current In (8/20 μs) : 25 kA

Voltage protection level Up: ≤ 3.5 kV, ≤ 6.5 kV

Product Description

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.

Featured:

* Impulse current limp (10/350 s): 25 kA

* Normal discharge current In (8/20 us): 25 kA

* Max. continuous operating voltage Uc: AC 750 V

* Selectable circuit protection modes: 3P/ 4P / 3P+1P

* Utilizes high-performance graphite or gas discharge tube (GDT) technology with superior follow-current interruption capability

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
Impulse current Iimp (10/350 μs)	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 ℃ ~ +85 ℃
Relative humidity	≤ 95% (25 ℃)
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
VPH750-25/3P+1P	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