Why Choose the ABB OFAF3H250 DIN Fuse?
The ABB OFAF3H250 is a robust DIN-type HRC fuse link designed to provide reliable overcurrent and short-circuit protection in low-voltage electrical distribution and industrial installations. As part of the ABB OFAF fuse range, it features a gG utilisation category for full-range protection of cables, conductors and general electrical equipment.
The OFAF3H250 uses the standardised DIN size 3 / NH3 format for installation in compatible fuse bases, fuse switches and switch-fuse equipment. Its gG operating characteristic provides protection against both overload and short-circuit currents, while dual indication assists maintenance personnel with identifying fuse operation during inspection and fault finding.
With a rated current of 250 A and a rated voltage of 500 V AC, the OFAF3H250 provides dependable protection for demanding industrial and commercial low-voltage circuits. ABB order code 1SCA022627R6350 identifies this specific 250 A DIN size 3 fuse link.
Key Advantages
- Reliable gG general-purpose overcurrent and short-circuit protection.
- 250 A rated current for industrial and power distribution circuits.
- 500 V AC rated voltage for low-voltage electrical systems.
- Standardised DIN size 3 / NH3 construction.
- Dual indication assists with convenient identification of fuse operation.
- Designed for use with compatible DIN fuse bases, fuse switches and switch-fuse equipment.
Key Features
- ABB OFAF DIN-type HRC fuse link.
- 250 A rated current.
- 500 V AC rated voltage.
- gG utilisation category for general-purpose full-range protection.
- DIN size 3 / NH3 fuse-link construction.
- Dual indication for convenient fuse status identification.
- 21.1 W power loss at rated current.
- Approximately 0.63 kg unit weight.
- Designed for general industrial and electrical distribution applications.
- ABB order code 1SCA022627R6350.
Reliable Protection for Low-Voltage Electrical Circuits
DIN-type gG fuse links provide full-range protection against overload and short-circuit currents. When excessive current passes through a protected circuit, the fuse element operates to interrupt the fault current, helping protect cables, conductors and connected electrical equipment against potentially damaging electrical conditions.
The ABB OFAF3H250 combines a 250 A current rating with a standardised DIN size 3 format, making it suitable for industrial switchboards, distribution panels and other higher-current low-voltage installations. Its gG characteristic provides versatile protection across a wide range of general electrical distribution applications.
Typical Applications
- Low-voltage electrical distribution systems.
- Industrial switchboards and distribution panels.
- Cable and conductor overcurrent protection.
- Electrical machinery and automation equipment.
- Fuse switches and fuse bases using compatible DIN size 3 fuse links.
- Commercial and industrial electrical installations.
