NH fuse-links gTr 400VAC, top indicator/live gripping-lugs size 2, 3, 4a

The NH system is classified among plug-in fuse systems and is composed of:

• fuse-base, (possibly including terminal covers and phase barriers)
• fuse-link with blade contact
• fuse-link replacement device (LV HRC fuse puller)

Since the design of this system cannot guarantee non-interchangeability of rated current, it must be handled by a qualified professional.

NH-fuse links „gTr“ are used for the protection of transformers. The time/current characteristic is especially adapted to that of the protected transformer and implies optimal selectivity to NH-fuse links characteristic gG. The fuses can be loaded with 1,3 times nominal current for up to 10 hours. The fuse link operates at 1,5 times nominal transformer current within 2 hours.

• Maximum transformer capacity (up to 1,3 x In)
• Reduction of unnecessary interruption of operation
• Precise cut off of overload
• Characteristic adapted to the transformer
• Resistant to ageing
• Selectivity to fuse links gG
• High current limiting
• High breaking capacity
• Easy selection between transformer and fuse link

Moins de caractéristiques