Product Catalog · 2.68 MB
VPM385-40 (1U) Series Type 2 1U SPD
The VPM385-40 (1U) is a slim-profile Type 2 AC SPD designed for space-saving power distribution. With a Uc of 385V AC, it handles a nominal In of 20 kA and an Imax of 40 kA (8/20 μs). Featuring Up ≤ 1.8 kV, it is fully EN/IEC 61643-11 compliant. Its 1U compact design makes it the ideal choice for high-density electrical panels and modular industrial equipment.
Highlights
- Slim 1U compact design for space-saving power distribution
- Low voltage protection level Up ≤ 1.8kV
- Handles a nominal 20kA In with 40kA Imax (8/20 μs)
- Pluggable modular design with thermal disconnection and remote signaling
Product Information
- Type: Type 2 AC surge protective device
- Maximum continuous operating voltage (Uc): 385V AC
- Nominal discharge current (In): 20kA (8/20 μs)
- Maximum discharge current (Imax): 40kA (8/20 μs)
- Voltage protection level (Up): ≤ 1.8kV
- Standard Compliance: EN/IEC 61643-11
- Slim 1U modular profile for space-saving installation
- Ideal for high-density electrical panels and modular industrial equipment
- Modular pluggable design with thermal disconnection, fault indication and remote signaling
Application:
The product features a standard 1U height chassis design for rack mounting. It incorporates multiple globally pioneering technologies and has applied for numerous invention and utility model patents. With excellent grid adaptability, it is widely suitable for various electrical applications. Designed for installation in low-voltage distribution systems from LPZ0 to LPZ2 zones, it effectively protects sensitive electrical equipment against damage caused by direct lightning strikes or induced transient overvoltages.
Nomenclature:
VP □ □–□/□□ - 1U - N
1 2 3 4 5 6 7
|
SN |
Name |
Specification, type code |
|
1 |
Design code |
VP |
|
2 |
Product Series |
M |
|
3 |
Max. continuous operating voltage Uc |
275 V: AC 275 V; 385 V: AC 385 V |
|
4 |
Max. Discharge Current Imax |
40: 40 kA |
|
5 |
Protection mode |
1N+NPG: 1N+NPG; 3N+NPG: 3N+NPG |
|
6 |
Structure |
1U: 1U Plug-and-Play Anti-Detachment |
|
7 |
Intelligent Features |
N: Network |
Example: VPM385-40/3N+NPG-1UN → Uc: AC 385V; Imax: 40 kA; Protection mode: 3N+NPG; Structure: 1U; Intelligent Features: N.
Technical parameters:
|
Model |
VPM385-40/3N+NPG-1U |
VPM385-40/3N+NPG-1UN |
|
SPD according to EN/IEC 61643-11 |
Type 2 |
Type 2 |
|
Protection mode |
3+1 mode |
3+1 mode |
|
Nominal operating voltage Un |
AC 230/400 V 50/60 Hz |
AC 230/400 V 50/60 Hz |
|
Max. continuous operating voltage Uc |
AC 385 V 50/60 Hz (MOV module Uc: 385 V 50/60 Hz, GDT module Uc: 255 V 50/60 Hz) |
AC 385 V 50/60 Hz (Uc: 385 V 50/60 Hz for the pressure-sensitive module, Uc: 255 V 50/60 Hz for the discharge tube module) |
|
Nominal discharge current In (8/20 μs) |
20 kA |
20 kA |
|
Max. discharge current Imax (8/20 μs) |
40 kA |
40 kA |
|
Voltage protection level Up |
L-N ≤ 1.8 kV, N-PE ≤ 1.0 kV |
L-N ≤ 1.7 kV, N-PE ≤ 1.0 kV |
|
Leakage current |
≤ 20 μA |
≤ 20 μA |
|
Response time |
L-N ≤ 25 ns, N-PE ≤ 100 ns |
L-N ≤ 25 ns, N-PE ≤ 100 ns |
|
Normal/Fault Indication |
Green/Red |
Green/Red |
|
Remote signaling mode |
RSC: Remote Signal contact, NC-COM contact |
RSC: Remote Signal contact, NC-COM 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 |
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 |
Max. 1.5 mm2 |
|
Installation method |
Fixed with 4-M3* × 8 screws |
Plug-in type: The rear end connector is 2.0 ± 0.1 mm thick |
|
Housing material |
PA66 UL94-V0 |
PA66 UL94-V0 |
|
Protection class |
IP20 |
IP20 |
|
Outline dimensions (without terminal) |
138 mm × 48 mm × 40 mm (tolerance ± 1 mm) |
123.5 mm × 76 mm × 40 mm (tolerance ± 1 mm) |
|
Module pluggable |
Pluggable module (for easy replacement of pressure sensitive module on panel) |
/ |
|
Internal protection device |
The lightning protection unit has a built-in thermal trip device. |
The lightning protection unit has a built-in thermal trip device. |
|
Access wire terminal |
DBN 90°Strip terminal (DBN 5.5-16-90, DBN 8-16-90, DBN 14-16-90) |
/ |
|
Remote installation mode |
/ |
Plug-in: The rear end plug-in remote PCB board thickness is 1.6 mm |
|
Terminal crimp length |
16.0 mm |
/ |
|
Wire crimping installation force |
> 100 N |
/ |
Selection guide:
|
Model |
Un |
Uc |
Up |
In |
Imax |
Protection mode |
Operating Principle |
Size |
|
AC 230 V |
AC 385 V |
1.8 kV |
20 kA |
40 kA |
L-N & N-PE |
Figure 4.1.2 |
Figure 4.2.2 |
|
|
AC 230 V |
AC 385 V |
1.7 kV |
20 kA |
40 kA |
Figure 4.1.2 |
Figure 4.2.3 |
||
|
AC 230 V |
AC 385 V |
1.8 kV |
20 kA |
40 kA |
L-PE & N-PE |
Figure 4.1.1 |
Figure 4.2.4 |
|
|
VPM385-40/2P-1U |
AC 230 V |
AC 385 V |
20 kA |
40 kA |
L-PE & N-PE |
Figure 4.1.3 |
Figure 4.2.4 |
|
|
VPM385-40/3P-1U |
AC 230 V |
AC 385 V |
1.8 kV |
20 kA |
40 kA |
L-PE & N-PE |
Figure 4.1.4 |
Figure 4.2.5 |
Operating Principle:







| File name | Type | Size | Actions |
|---|---|---|---|
| VOZWEI-SPD-Catalog.pdf | Product Catalog | 2.68 MB |
Q: What type of SPD is the VPM385-40 (1U) Series?
A: The VPM385-40 (1U) Series is a Type 2 AC surge protective device (SPD) designed to protect AC power distribution systems against induced transient overvoltages.
Q: What are the key electrical ratings of the VPM385-40 (1U) Series?
A: It features a maximum continuous operating voltage (Uc) of 385V AC, a nominal discharge current (In) of 20kA, and a maximum discharge current (Imax) of 40kA (8/20 μs), with a voltage protection level (Up) of ≤ 1.8kV.
Q: What makes the 1U design of this SPD special?
A: The slim 1U modular profile is specifically engineered for space-saving installation in high-density electrical panels and modular industrial equipment.
Q: What safety features does the VPM385-40 (1U) Series include?
A: It incorporates a pluggable modular design with thermal disconnection, fault indication, and remote signaling for safe and stable operation.
Q: What standard does the VPM385-40 (1U) Series comply with?
A: It is fully compliant with the EN/IEC 61643-11 international standard for low-voltage surge protective devices.
Related Products

VPH385-30 Series Type 1 AC SPD
The VPH385-30 is a heavy-duty Type 1 AC SPD for primary power protection. It handles direct lightning strikes with a massive Iimp of 30 kA (10/350 μs) and Uc of 385V AC. Featuring Up ≤ 1.9 kV, it ensures top-tier safety for critical systems. Fully EN/IEC 61643-11 compliant, it’s ideal for telecom, wind power, and industrial use.
View product
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.
View product
VPM275-40 Series Type 2 AC SPD
The VPM275-40 is a professional Type 2 AC SPD designed for secondary power distribution. With a Uc of 275V AC, it handles a nominal discharge current (In) of 20 kA and a max capacity (Imax) of 40 kA (8/20 μs). Featuring Up ≤ 1.2 kV, it offers precise protection for sensitive electronic equipment. Fully EN/IEC 61643-11 compliant and reliable.
View productIntelligent manufacturing
Integrated production, testing and engineering capabilities built for consistent quality at scale.
Automated Production
Automated & semi-automated assembly and inspection
Integrated Manufacturing
Stamping · Welding · Injection Molding
Quality & Testing
RoHS · Performance Testing · Process Inspection