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NHR40
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Low Voltage IEC Sub Power Distribution NHR40
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Sub Power Distribution
NHR40-160-3-Switch-disconnector-fuse
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NHR40

The NHR40 Fuse-switch Disconnector provides reliable manual isolation and circuit protection for AC 50Hz systems up to 690V and DC systems up to 440V, with rated currents up to 630A. Designed for infrequent manual operation, it safely breaks or isolates electrical circuits under load. The compact, fully enclosed structure enhances thermal stability, while the dual-contact, double-break design ensures dependable performance in industrial power distribution and switchgear systems.

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Product Information

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NHR40-Switch-disconnector-fuse-Catalog.pdf
958.82KB
2024-10-21
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FAQs

 

What is the function of the NHR40 Fuse-switch Disconnector?

It serves as a manual isolation and protection device, allowing operators to safely disconnect circuits under load and protect against overcurrent or short-circuit faults.

 

What makes the NHR40 design reliable in industrial applications?

Each phase contains two contact groups with double breaking points, improving its current-breaking capacity and ensuring a reliable power isolation mechanism.

 

What fuse types can be used with this disconnector?

It is compatible with RT36 (NT/RT16) and RT20 fuse series, which users can select based on application voltage and current needs.

 

How does the operating mechanism improve safety?

The built-in energy storage spring ensures that contact operation speed is independent of manual rotation, guaranteeing consistent and safe opening/closing.

 

What installation options are available?

The NHR40 can be installed inside switchgear (front operation) or outside panels (facade operation). Models ≤63A can also be mounted on DIN rails or boxed for protection.

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