Eaton 400A Tag Fuse NH03 500V

This tag fuse is a high-capacity protective device designed for industrial power distribution and renewable-energy systems. It provides overcurrent protection within medium-voltage circuits and is intended for use in environments where robust interruption capability and standardised NH sizing are required. The product suits installations demanding a balance between current handling and system protection.

• 400A rating delivers secure circuit protection for heavy loads
• GG time-delay characteristic permits short-duration inrush currents
• 500V voltage capability supports medium-voltage distribution systems
• High rupture capacity enables safe fault interruption without damage
• NH03 form factor ensures compatibility with standard NH holders
• Conforms to IEC and DIN standards for interchangeable use

• Suitable for wind-turbine electrical protection and monitoring systems
• Ideal for industrial motor feeders and control panels
• Used for solar-array combiner and inverter protection
• Can be used for utility distribution and switchgear circuits
• Used with protection units requiring NH size 03 fuses

It is manufactured with high rupture capability to clear high fault currents typical in utility and industrial networks, preventing sustained arcing on interruption.

The GG time-delay behaviour allows transient motor start currents to pass without nuisance operation while still clearing sustained overloads.

It is designed to meet recognised IEC and DIN specifications for NH fuses, enabling interchangeability with compliant fuse holders.

The fuse follows NH size 03 dimensional conventions for insertion into standard NH03 fuse bases.