NTN-R-30 - 

Fuse Accessory, Dummy Fuse “Neutrals”, 1A to 30A

NTN-R-30 - Fuse Accessory, Dummy Fuse “Neutrals”, 1A to 30A

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The NTN-R-30 is a 250V Dummy Fuse Neutral for use with Cooper fuse blocks and holders.



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2 years, 9 months ago
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Two main purposes are:
1.A dummy fuse device includes a switching unit electrically conducted to perform electrical signal transfer when it is determined that electrical signal transfer through a main fuse is failed
2. A dummy fuse opening to block the electrical signal transfer when the voltage of the electrical signal supplied through the electrical conduction of the switching unit exceeds a predetermined level. The dummy fuses are useful as isolation links when fault finding.

Fuses are not allowed in the phase with the grounded phase conductor. So fuses ares used for the un-grounded phases and a dummy fuse for the grounded phase conductor.

An electronic apparatus including the dummy fuse device may also include the main fuse, a power supply unit, and a circuit. Please refer the attached image.
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