Why Choose the ABB OFAA4AGG630 630A gG DIN Fuse?
The ABB OFAA4AGG630 is a heavy-duty 630 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 full-range general-purpose protection for high-current industrial power distribution, switchgear and electrical equipment.
The OFAA4AGG630 uses the gG utilisation category, providing protection against both overload and short-circuit currents. Its DIN blade construction enables integration with compatible industrial fuse bases, fuse switches and switch-disconnectors, while its high-current design makes it suitable for substantial distribution loads and feeder circuits.
With a rated current of 630 A, a rated voltage of 690 V and a DIN size 4 / IEC size 4a format, the OFAA4AGG630 is engineered for demanding industrial installations. The fuse link also incorporates dual indication, providing convenient visual indication of fuse operation for inspection and maintenance.
Key Advantages
- Heavy-duty 630 A gG full-range fuse protection.
- 690 V rated voltage for demanding industrial distribution systems.
- DIN size 4 / IEC size 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 high-current switchboards, distribution equipment and industrial electrical systems.
Key Features
- ABB OFAA DIN fuse link range.
- 630 A rated current.
- 690 V rated voltage.
- gG utilisation category.
- DIN size 4 / IEC size 4a fuse format.
- Dual indication for convenient fuse status identification.
- Full-range protection against overload and short-circuit conditions.
- Approximately 43 W power loss at rated current.
Reliable Protection for High-Current Power Distribution
DIN gG fuse links such as the ABB OFAA4AGG630 protect electrical circuits by safely interrupting excessive current caused by overload or short-circuit conditions. The gG operating characteristic provides full-range protection, making this fuse suitable for protecting cables, conductors, feeder circuits and general-purpose electrical distribution systems.
The OFAA4AGG630 combines a substantial 630 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.
- Main electrical switchboards and distribution panels.
- Fuse switches and switch-disconnector assemblies.
- Cable, conductor and feeder circuit protection.
- Industrial machinery and electrical power equipment.
- Commercial and industrial low-voltage installations.
