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NU6-IIG Low-Voltage Surge Protective Device

NU6-II-GF-100-440-2P-SPD-2

NU6-II-GF-100-440-2P-SPD-Front-5

NU6-II-GF-100-440-4P-SPD-2

NU6-II-GF-100-440-4P-SPD-Front-5

NU6-II-GF-100-440-6P-SPD-2

NU6-II-GF-100-440-6P-SPD-Front-5

NU6-II-GF-100-440-8P-SPD-2

NU6-II-GF-100-440-8P-SPD-Front-5

NU6-II-GF-100-440-2P-SPD-2

NU6-II-GF-100-440-2P-SPD-Front-5

NU6-II-GF-100-440-4P-SPD-2

NU6-II-GF-100-440-4P-SPD-Front-5

NU6-II-GF-100-440-6P-SPD-2

NU6-II-GF-100-440-6P-SPD-Front-5

NU6-II-GF-100-440-8P-SPD-2

NU6-II-GF-100-440-8P-SPD-Front-5

NU6-IIG Low-Voltage Surge Protective Device

The NU6-IIG Low-Voltage Surge Protective Device offers reliable protection for electrical systems and on-loading equipment against lightning and transient overvoltage. Built for 230/400V AC 50/60Hz systems, it complies with IEC/EN 61643-11 standards and is suitable for various grounding systems (TN-S, TN-C, TT, IT). Featuring modular design, removable protection modules, and visual fault indicators, the NU6-IIG ensures safe, efficient surge suppression in residential, commercial, and industrial networks.

Product Information

Standard Compliance: IEC/EN 61643-11
Rated Operating Voltage (Ue): 230/400V AC, 50/60Hz
Available Pole Configurations: 1P, 2P, 3P, 4P, 1P+N, 3P+N
Protection Levels:
- Maximum Continuous Operating Voltage (Uc): 275V / 320V / 385V / 440V
- Protection Level (Up): 1.5–2.4kV depending on model
- Maximum Discharge Current (Imax): 40kA / 65kA / 100kA (8/20μs waveform)
- Nominal Discharge Current (In): 20kA / 30kA / 50kA
Auxiliary Contact Options: 1NO+1NC, rated at AC250V, 0.5A (for remote signaling)
Grounding System Compatibility:
- TN-S: L–PE, L–N, N–PE
- TN-C: L–PEN
- TT: L–N, N–PE
- IT: L–PE
Construction Features:
- Modular structure with removable protective module and base
- Visual fault indicator for damaged modules
- No need to disconnect circuit when replacing module
- Voltage indicator window prevents mismatched replacement
Installation Type: DIN rail mounting (TH35-7.5)
Dimensions (mm):
- Width per pole: 18 mm
- Height: 67.7 mm
- Depth: 50 mm
- Length varies from 18 mm (1P) to 144 mm (4P)
Optional Remote Signaling Port: Available in “/F” versions
Certifications: CE, RoHS

Name

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Release time

Operate

NU6-IIG-SPD-Catalog.pdf

1.25MB

2025-12-15

Download

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2305-NU6-IIG-SPD-Manual.pdf

549.9KB

2024-09-22

Download

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2302-NU6-ⅡG-SPD-CE Certificate.pdf

2.67MB

2024-09-22

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2206-NU6-ⅡG-SPD-CE Certificate.pdf

1.45MB

2024-09-22

Download

2206-NU6-II-SPD-Zertifikat Certificate.pdf

1.49MB

2024-09-22

Download

2206-NU6-II G-SPD-TUV Certificate.pdf

1.46MB

2024-09-22

Download

2112-NU6-ⅡG-SPD-RCC Certificate.pdf

425.71KB

2024-09-22

Download

2004-NU6-ⅡG-SPD-CE RoHS Declaration Certificate.pdf

628.21KB

2024-09-22

Download

1906-NU6-ⅡG-SPD-CB Certificate.pdf

4.69MB

2024-09-22

Download

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Release time

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NU6-IIG-1P-N-SPD-Drawing.stp

8.1MB

2024-09-22

Download

NU6-ⅡG-40-65-3P-SPD-Drawing.stp

13.1MB

2024-09-22

Download

NU6-IIG-2P-SPD-Drawing.stp

8.13MB

2024-09-22

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NU6-IIG-1P-SPD-Drawing.stp

2024-09-22

Download

NU6-ⅡG-40-65-4P-SPD-Drawing.stp

2024-09-22

Download

NU6-ⅡG-40-65-3P-N-SPD-Drawing.stp

2024-09-22

Download

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FAQs

What is the purpose of the NU6-IIG Surge Protective Device?

It safeguards electrical systems and connected equipment from lightning strikes and transient overvoltage surges, ensuring uninterrupted power and equipment longevity.

How does the NU6-IIG indicate when maintenance is needed?

The built-in visual indicator signals when a protection module is damaged. The faulty module can be replaced instantly without disconnecting power.

Can the NU6-IIG be used in different grounding systems?

Yes. It supports TN-S, TN-C, TT, and IT grounding configurations, making it suitable for various electrical environments and distribution networks.

What are the available discharge capacities?

The NU6-IIG comes in 40kA, 65kA, and 100kA versions, allowing users to choose protection levels based on lightning exposure and installation requirements.

Does the NU6-IIG support remote monitoring?

Yes, the “/F” version includes an auxiliary contact (1NO+1NC) for remote signaling and monitoring, enabling integration into intelligent power management systems.