VPM320-40 Series Type 2 AC SPD
- Nominal discharge current In (8/20 us): 20 kA / 40 kA / 50 kA
- Max. discharge current Imax (8/20 us): 40 kA / 80 kA / 100 kA
- Max. continuous operating voltage Uc: AC 275 V / AC 320 V / AC 385 V
- Selectable circuit protection modes: 2P / 3P / 1N+NPG / 3N+NPG / 4P
- 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 a Type 2 low-voltage surge protective device (SPD). It is designed for installation at the boundaries of subsequent protection zones (e.g., LPZ1-2, LPZ2-3) within low-voltage distribution systems. This device protects sensitive equipment by safely discharging the remnant surge currents and transient overvoltages resulting from indirect lightning effects or switching operations.
Nomenclature:
VP □ □–□/□□
1 2 3 4 5
SN | Name | Specification, type code |
1 | Design code | VP |
2 | Product Series | M |
3 | Max. continuous operating voltage Uc | 275: AC 275 V; 320: AC 320 V; 385: AC 385 V |
4 | Max. discharge current Imax | 40: 40 kA; 80: 80 kA; 100: 100 kA |
5 | Protection mode | 2P: 2P; 3P: 3P; 1N+NPG: 1N+NPG; 3N+NPG: 3N+NPG; 4P: 4P |
Example: VPM275-40/3N+NPG → Uc: AC 275 V; Imax: 40 kA; Protection mode: 3N+NPG.
Technical parameters:
Model | VPM320-40/3N+NPG |
SPD according to EN/IEC 61643-11 | Type 2 |
Protection mode | 3+1 mode |
Nominal operating voltage Un | AC 230/400 V 50/60 Hz |
Max. continuous operating voltage Uc | AC 320 V 50/60 Hz (Varistor module Uc: 320 V 50/60 Hz; GDT module Uc: 255 V 50/60 Hz) |
Nominal discharge current In (8/20 μs) | 20 kA |
Max. discharge current Imax (8/20 μs) | 40 kA |
Voltage protection level Up | L-N ≤ 1.6 kV, N-PE ≤ 1.0 kV |
Leakage current | ≤ 20 μA |
Response time | L-N ≤ 25 ns, N-PE ≤ 100 ns |
Max. backup fuse | 125 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 | UL94-V0 |
Protection class | IP20 |
Outline dimensions (without terminal) | 89.5 mm × 71.5 mm × 65.2 mm (tolerance ± 1 mm) |
Module pluggable | Pluggable |
Internal protection device | The lightning protection unit has a built-in thermal trip device |
Environmental protection characteristics | RoHS |
Short-circuit withstand capability | 25 kArms |
Selection guide:
Model | Un | Uc | Up | In | Imax | Protection mode | Operating Principle | Size |
VPM320-40/2P | AC 230 V | AC 320 V | 1.6 kV | 20 kA | 40 kA | L-PE & N-PE | Figure 1.5.2 | Figure 1.6.1 |
VPM320-40/3P | AC 230 V | AC 320 V | 1.6 kV | 20 kA | 40 kA | L-PE | Figure 1.5.3 | Figure 1.6.3 |
VPM320-40/3N+NPG | AC 230 V | AC 320 V | 1.2 kV | 20 kA | 40 kA | L-N & N-PE | Figure 1.5.4 | Figure 1.6.4 |
Operating Principle:
Documentation
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