Name: NXU-I+II Low-Voltage Surge Protective Device
Brand: Chint

NXU-I+II Low-Voltage Surge Protective Device

The NXU-I+II Low-Voltage Surge Protective Device (SPD) provides reliable protection for electrical systems and connected equipment against lightning strikes and transient over-voltages. Designed in accordance with IEC/EN 61643-11, it combines Class I & II surge protection in a single compact unit. The modular design with a replaceable protective module allows for easy maintenance without circuit disconnection, ensuring consistent system uptime and enhanced safety for residential, commercial, and industrial power networks.

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FAQs

What is the main function of the NXU-I+II Surge Protective Device?

It protects electrical systems and equipment from lightning-induced surges and transient over-voltages, ensuring safe operation of downstream loads and sensitive electronics.

Can the protective module be replaced without shutting down the circuit?

Yes. The removable protective module allows quick replacement of damaged units without disconnecting power, maintaining continuous operation.

What differentiates the “F” version from the standard model?

The NXU-I+II /F variant includes a remote alarm contact, enabling remote fault monitoring and integration with intelligent control systems.

Where can this SPD be used?

Ideal for main distribution boards, industrial switchgear, renewable-energy systems, and building service panels where both Class I and Class II surge protection levels are required.

What maintenance indicators does it provide?

A color-coded window (green/red) indicates working or fault status. When red appears, simply replace the protection module — no full system shutdown is needed.

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NXU-I+II Low-Voltage Surge Protective Device

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