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1SCA022627R6940 ABB 450 A Size 3 500 V gG DIN HRC Fuse Link
ABB OFAF3H450 is a 450 A, 500 V, NH3 size gG DIN HRC fuse link with dual indication designed for full-range overload and short-circuit protection in industrial electrical systems.
£29.22
Why Choose the ABB OFAF3H450 DIN Fuse Link?
The ABB OFAF3H450 is a high-rupturing-capacity gG DIN HRC fuse link designed for dependable protection of cables, conductors and industrial electrical circuits against overload and short-circuit currents. Part of the ABB OFAF fuse range, this fuse link combines a 450 A rated current, 500 V rated voltage and NH3 / IEC size 3 construction.
The gG utilisation category provides full-range protection, enabling the OFAF3H450 to protect electrical circuits against both sustained overloads and high short-circuit currents. Its high-rupturing-capacity construction makes it suitable for demanding industrial power distribution, switchgear and machinery applications where reliable fault interruption is essential.
With its standard DIN/NH blade-contact construction, the OFAF3H450 can be integrated into compatible fuse bases, fuse switches and switch-disconnectors. The fuse has a power loss of approximately 38 W at rated current and compact dimensions of approximately 150 × 70 × 84 mm.
Key Advantages
- High-performance gG HRC fuse link for full-range circuit protection.
- 450 A rated current for high-current industrial applications.
- 500 V rated voltage.
- Standard NH3 / IEC size 3 DIN fuse construction.
- Provides protection against both overload and short-circuit currents.
- High-rupturing-capacity construction for dependable fault interruption.
Key Features
- ABB OFAF HRC fuse range.
- 450 A rated current.
- 500 V rated voltage.
- gG utilisation category.
- NH3 / IEC size 3 fuse format.
- 38 W power loss at rated current.
- Dual indication for convenient fuse status identification.
- DIN/NH blade-contact construction.
- Designed for industrial low-voltage circuit protection.
Reliable Full-Range Industrial Circuit Protection
The ABB OFAF3H450 uses a gG operating characteristic designed to provide full-range protection against overload and short-circuit currents. When excessive current flows through the protected circuit, the fuse element operates to interrupt the fault and help protect cables, conductors, switchgear and connected electrical equipment.
Its 450 A rating and standard NH3 construction make the OFAF3H450 suitable for high-current low-voltage distribution systems. Its DIN format allows straightforward integration with compatible industrial fusegear in electrical distribution and machinery installations.
Typical Applications
- Industrial low-voltage power distribution.
- Electrical switchboards and distribution panels.
- Industrial machinery and production equipment.
- Fuse switches and switch-disconnectors.
- Cable and conductor protection.
- Commercial and industrial electrical installations.
Technical Specifications
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| Voltage | 500 V | |
|---|---|---|
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH3 | |
| Fuse Class | gG | |
| Current | 450 A | |
| Fuse Indication | Dual indicator | |
| Series | OFAF | |
| ABB order code | 1SCA022627R6940 | |
| Product type | DIN HRC fuse link | |
| Utilisation category | gG | |
| Rated current | 450 A | |
| Rated voltage | 500 V | |
| Fuse size | NH3 / IEC size 3 | |
| Power loss | approx. 38 W | |
| Indication | Dual indication | |
| Fuse system | DIN | |
| Applicable standard | IEC 60269 | |
| Dimensions (H × W × D) | approx. 150 × 70 × 84 mm | |
| Weight | approx. 1 kg |
Frequently Asked Questions
What is the ABB OFAF3H450 used for?
The ABB OFAF3H450 is a gG DIN HRC fuse link designed to protect industrial electrical circuits, cables and conductors against overload and short-circuit currents.
What is the current rating of the OFAF3H450?
The OFAF3H450 has a rated current of 450 A.
What voltage is the ABB OFAF3H450 rated for?
The OFAF3H450 has a rated voltage of 500 V.
What fuse size is the OFAF3H450?
The OFAF3H450 is an NH3 / IEC size 3 DIN HRC fuse link.
What does the gG classification mean?
The gG classification identifies a full-range general-purpose fuse designed to provide protection against both overload and short-circuit currents.
Trusted Industrial Circuit Protection from ABB
ABB OFAF gG HRC fuse links provide dependable full-range protection for industrial electrical systems, combining standardised DIN/NH construction with reliable overload and short-circuit protection for demanding power distribution applications.
