Fuse cartridge Shumee KOMBI NH00 gG 25A 500V (set of 3)

Shumee KOMBI NH00 gG 25A 500V fuse cartridges (set of 3) are consumable protective elements designed for low-voltage power distribution and industrial electrical installations. These NH00-size gG fuses combine time-delay characteristics for overload protection with the capacity to interrupt high short-circuit currents, making them suitable for general-purpose protection of cables, transformers and switchgear where a 25 ampere rating and 500 volt insulation are required.

Advantages

The NH00 gG fuse design provides both overload and short-circuit protection in a compact cartridge format compatible with standard NH00 fuse holders and switchgear. The set of three identical cartridges simplifies replacement and inventory for maintenance activities. Constructed to the common gG characteristic, these fuses offer reliable, repeatable interruption performance across typical industrial and distribution network fault conditions while maintaining clear physical separation and secure mounting within NH fuse bases.

Suitable for

• Protection of low-voltage distribution circuits in commercial and industrial buildings
• Overload and short-circuit protection for transformers and transformer feeders
• Protection of cables and conductors sized for 25 A operation
• Use in NH00 fuse holders, switchgear and fuse switches designed for NH cartridge fuses

When it may not be suitable

These NH00 gG 25A cartridges are not suitable for applications requiring different fuse characteristics (such as selective time-delay, ultrafast semiconductor protection, or special coordination classes) or for voltages higher than their 500 V rating. They are also not appropriate where a different physical fuse size, ampere rating or a miniaturized fuse format is specified by the equipment manufacturer.

Key specifications

• Type: NH00 cartridge fuse, gG (general purpose) characteristic
• Rated current: 25 A
• Rated voltage: 500 V (AC)
• Pack quantity: set of 3 identical cartridges
• Application: overload and short-circuit protection in low-voltage distribution and industrial installations

How to use

Ensure power is isolated and follow lock-out/tag-out procedures before replacing or installing fuse cartridges. Confirm the fuse size (NH00), characteristic (gG) and rated values (25 A, 500 V) match the installation requirements. Insert each cartridge into a compatible NH fuse holder or switchgear slot until it seats securely; ensure correct orientation and that contacts are clean and undamaged. After installation, restore power and verify proper operation. Replace all three cartridges from the set as needed, keeping spare cartridges stored in a dry, dust-free location.

What to consider before purchase

• Confirm NH00 physical size and compatibility with your fuse holders or switchgear
• Verify the gG general-purpose characteristic suits your protection coordination needs
• Ensure the 25 A rated current and 500 V voltage rating match circuit design and cable sizing
• Check local regulations and safety standards for fuse replacement and installation

Usage recommendations

For reliable protection, replace fuses with identical type and ratings and perform routine inspection of fuse holders and contacts. Coordinate with upstream and downstream protection devices to maintain selectivity and avoid nuisance trips.