Why Choose the ABB OFAA3GG400 400A gG DIN Fuse Link?
The ABB OFAA3GG400 is a high-performance 400 A HRC DIN fuse link designed for dependable general-purpose overcurrent protection in industrial low-voltage electrical systems. Part of ABB’s OFAA range, this NH size 3 fuse features a gG utilisation category, providing full-range protection against both overload and short-circuit currents.
With a rated current of 400 A and a rated voltage of 690 V AC, the OFAA3GG400 is suitable for demanding power distribution applications, including switchboards, industrial machinery and cable protection. Its high-rupturing-capacity construction provides reliable fault interruption in installations where substantial prospective fault currents may occur.
The NH3 / size 3 DIN format enables integration with compatible industrial fuse bases and switch-fuse equipment. The fuse also incorporates dual indication, providing convenient visual status indication for maintenance and fault-finding in industrial installations.
Key Advantages
- Full-range gG protection against overload and short-circuit currents.
- 400 A rated current for high-current industrial circuits.
- Rated for systems up to 690 V AC.
- NH3 / size 3 DIN-format construction.
- Dual indication for convenient fuse status identification.
- High-rupturing-capacity design for dependable industrial circuit protection.
Key Features
- ABB OFAA DIN-type HRC fuse link.
- 400 A rated current.
- 690 V AC rated voltage.
- gG utilisation category for general-purpose protection.
- NH3 / size 3 fuse format.
- 30.1 W power loss at rated current.
- Dual fuse indication.
- Designed in accordance with IEC 60269.
Reliable Full-Range Industrial Circuit Protection
gG fuse links provide full-range protection against both overload and short-circuit currents, making them suitable for protecting cables, conductors, distribution circuits and general industrial electrical equipment. This characteristic allows a single fuse link to provide comprehensive overcurrent protection across a wide range of low-voltage applications.
The ABB OFAA range uses standard DIN-type NH construction for integration with established industrial fusegear. Combining a 400 A rating, 690 V AC capability, NH size 3 construction and dual indication, the OFAA3GG400 is well suited to demanding power distribution and machinery protection applications.
Typical Applications
- Industrial power distribution systems.
- High-current electrical switchboards.
- Cable and conductor protection.
- Industrial machinery and production equipment.
- Distribution panels and control systems.
- NH fuse bases and switch-fuse assemblies.
