Why Choose the Mersen NH3GG50V300 NH Fuse-Link?
The Mersen NH3GG50V300 is a high-performance DIN NH gG fuse-link designed to provide reliable full-range protection for cables, conductors and low-voltage electrical equipment. Featuring a 300 A rated current, a 500 V AC rating and a 250 V DC rating, this NH fuse is suitable for demanding industrial and commercial power distribution applications.
Manufactured in the standard NH3 blade-contact format, the NH3GG50V300 provides secure installation in compatible NH fuse bases and switch-fuse assemblies. Its gG operating characteristic protects circuits against both sustained overloads and high short-circuit currents, helping reduce the risk of damage to cables, busbars, switchgear and connected equipment.
The fuse incorporates live gripping lugs and a double visual indicator for convenient condition checking. Its robust ceramic body, brass blade terminals and high 120 kA AC breaking capacity support dependable operation in industrial switchboards, distribution systems and machinery installations.
Key Advantages
- Reliable NH3 gG fuse-link for industrial power distribution.
- 300 A rated current for high-current cable and equipment protection.
- Rated for operation at up to 500 V AC and 250 V DC.
- 120 kA AC breaking capacity for effective fault interruption.
- Double visual indicator assists with rapid fuse-status identification.
- Standard NH blade format for installation in compatible fuse bases.
Key Features
- Mersen NH fuse-link range.
- NH3 fuse size.
- 300 A rated current.
- 500 V AC and 250 V DC voltage ratings.
- gG full-range protection characteristic.
- 120 kA maximum AC breaking capacity.
- Double visual indication system.
- Live metal gripping lugs.
- Durable ceramic insulating body.
- Plain brass blade terminals.
Reliable Protection for High-Current Distribution Circuits
The Mersen NH3GG50V300 protects cables and electrical equipment by interrupting excessive current before damaging thermal and mechanical stresses can develop. Its gG characteristic provides full-range protection, covering sustained overload conditions as well as high-level short circuits in general-purpose low-voltage circuits.
With a high breaking capacity and current-limiting construction, the fuse helps reduce the fault energy passed to downstream conductors, busbars and switchgear. The double indicator supports efficient maintenance by providing visible confirmation when the fuse has operated and requires replacement.
Typical Applications
- Industrial power distribution systems.
- Main and sub-distribution switchboards.
- Cable and conductor protection.
- Motor control centres.
- Industrial machinery and production equipment.
- OEM switchgear and power distribution assemblies.
