Name: NH40 Switch Disconnector
Brand: Chint

NH40 Switch Disconnector

NH40 switch-disconnector is designed for AC 50Hz systems with rated voltage up to AC 690V and DC 440V, and rated current up to 3150A. NH40 is used in industrial power distribution for frequent connection, disconnection, and isolation of circuits, especially suitable for frequent switching and breaking in the 125A to 630A range.

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FAQs

What is the main application of the NH40 Switch Disconnector?

It’s used to connect, disconnect, and isolate power circuits in low-voltage distribution systems and industrial panels. Rated up to 3150A, it’s suitable for frequent manual operation and safe maintenance isolation.

How is the NH40 different from a circuit breaker?

Unlike a circuit breaker, the NH40 does not automatically trip. It’s a manual isolating device designed for disconnection under load or maintenance, ensuring visible circuit isolation.

What mounting and handle options are available?

The NH40 can be installed inside or outside the switchgear cabinet, with central or side handles and optional external rotary handles for flexible operation.

Can the NH40 be used in motor circuits?

Yes, it supports AC-23A utilization category, making it suitable for motor loads where reliable disconnection and load isolation are needed.

What safety features are integrated into the NH40 design?

It includes double-cast switch options, transparent frames (≤630A) for inspection, and terminal protection covers for enhanced operator safety.

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NH40 Switch Disconnector

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