Why Choose the ABB OFAA4AGG500 500A gG DIN Fuse?
The ABB OFAA4AGG500 is a robust 500 A gG DIN fuse link designed for dependable overload and short-circuit protection in demanding low-voltage electrical distribution systems. As part of ABB's OFAA range of DIN-type fuse links, it provides reliable general-purpose protection for industrial power distribution, switchgear and electrical equipment.
The OFAA4AGG500 uses the gG utilisation category, providing full-range protection against both overload and short-circuit currents. Its high rupturing capacity construction enables safe interruption of substantial fault currents, while its DIN blade format allows integration with compatible industrial fuse bases, fuse switches and switch-disconnectors.
With a rated current of 500 A, a rated voltage of 690 V and a DIN size 4 / 4a format, the OFAA4AGG500 is suited to high-current industrial distribution applications. The fuse link incorporates dual indication, helping maintenance personnel identify fuse operation during inspection and fault finding.
Key Advantages
- Heavy-duty 500 A gG full-range fuse protection.
- 690 V rated voltage for demanding industrial distribution applications.
- DIN size 4 / 4a construction for compatible high-current fusegear.
- Dual indication assists with identification of fuse operation.
- gG characteristic provides both overload and short-circuit protection.
- Designed for reliable integration into industrial switchboards and power distribution equipment.
Key Features
- ABB OFAA DIN fuse link range.
- 500 A rated current.
- 690 V rated voltage.
- gG utilisation category.
- DIN size 4 / 4a fuse format.
- Dual indication for convenient fuse status identification.
- Full-range protection for overload and short-circuit conditions.
- Approximately 33 W power loss at rated current.
Reliable Protection for High-Current Power Distribution
DIN gG fuse links such as the ABB OFAA4AGG500 protect electrical circuits by safely interrupting excessive current resulting from overload or short-circuit conditions. The gG operating characteristic provides full-range protection, making the fuse suitable for protecting cables, conductors and general-purpose electrical distribution circuits.
The OFAA4AGG500 combines a substantial 500 A current rating with a 690 V voltage rating and large-format DIN construction. Its dual indication provides a practical visual aid during maintenance, while the standardised fuse format supports integration with compatible high-current industrial fusegear.
Typical Applications
- High-current industrial power distribution systems.
- Electrical switchboards and main distribution panels.
- Fuse switches and switch-disconnector assemblies.
- Cable and conductor overload and short-circuit protection.
- Industrial machinery and electrical power equipment.
- Commercial and industrial low-voltage installations.
