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NU6-III Low-Voltage Surge Protective Device
Product Consultation
Low Voltage IEC Final Power Distribution NU6-III Low-Voltage Surge Protective Device
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Final Power Distribution
NU6-III-F-10-275-1P-SPD-2
NU6-III-F-10-275-1P-SPD-Front-8
NU6-III-F-10-275-SPD-Side-5
NU6-III-F-10-385-1P-SPD-2
NU6-III-F-10-385-1P-SPD-Front-5
NU6-III-F-10-385-SPD-Side-8
NU6-III-F-10-275-1P-SPD-2
NU6-III-F-10-275-1P-SPD-Front-8
NU6-III-F-10-275-SPD-Side-5
NU6-III-F-10-385-1P-SPD-2
NU6-III-F-10-385-1P-SPD-Front-5
NU6-III-F-10-385-SPD-Side-8

NU6-III Low-Voltage Surge Protective Device

The NU6-III Low-voltage Surge Arrester provides reliable protection for AC 230V single-phase power distribution systems against lightning strikes and transient overvoltage. Featuring a compound design that combines a gas discharge tube and voltage-sensitive resistor, it ensures fast response and high surge endurance. The plug-in replaceable module allows for easy maintenance, while a visual indicator signals protection status. Compliant with IEC61643-1 and EN61643-11, it’s ideal for residential, commercial, and industrial electrical networks.

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Product Information

Name
Size
Release time
Operate
NU6-III-SPD-Catalog.pdf
424.55KB
2025-12-15
Download
Name
Size
Release time
Operate
2004-NU6-Ⅲ-SPD-Manual.pdf
775.5KB
2024-09-22
Download
Name
Size
Release time
Operate
1406-NU6-Ⅲ-SPD-CB Certificate.pdf
1.09MB
2024-09-22
Download
Name
Size
Release time
Operate
NU-Ⅲ-SPD-Drawing.stp
3.02MB
2024-09-22
Download

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FAQs

 

What is the purpose of the NU6-III Low-voltage Surge Arrester?

It safeguards electrical systems and connected equipment from lightning surges and transient overvoltage events, ensuring the safety and longevity of installations.

 

In what environments can the NU6-III be used?

The device is suitable for residential, commercial, and light industrial power systems, especially in regions prone to lightning or voltage fluctuations.

 

What makes the NU6-III unique compared to other surge protectors?

Its compound design (gas discharge tube + varistor) ensures rapid voltage suppression and high durability, while the pluggable module allows quick maintenance without power interruption.

 

How can users identify if the device needs replacement?

A red visual indicator appears when the protection module fails, signaling that the plug-in module should be replaced immediately—no need to shut down the circuit.

 

Does the NU6-III support remote monitoring?

Yes. The NU6-III/F variant includes an auxiliary contact output, enabling remote fault signaling for integration into control or monitoring systems.

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