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OFAF3H800 ABB 800 A DIN 43620 Size 3 Fuse
ABB OFAF3H800 is an 800 A, 500 V AC, DIN 43620 size 3 / NH3 gG fuse link designed for overload and short-circuit protection in low-voltage industrial power distribution systems.
£36.83
Why Choose the ABB OFAF3H800 800 A DIN Fuse?
The ABB OFAF3H800 is a high-current DIN 43620 fuse link designed to provide dependable overcurrent and short-circuit protection in low-voltage electrical distribution and industrial power systems. Rated at 800 A, this ABB fuse is manufactured in size 3 / NH3 format and is suitable for applications requiring reliable protection of cables, switchgear and electrical equipment.
As part of ABB's range of fuses and fusebases, the OFAF3H800 uses a gG utilisation category, providing general-purpose full-range protection against overload and short-circuit currents. Its standardised DIN construction makes it suitable for compatible NH size 3 fusebases, fuse switches and switch-fuse equipment used throughout industrial and commercial electrical installations.
With a rated current of 800 A and rated voltage of 500 V AC, the OFAF3H800 is intended for demanding low-voltage distribution applications where high-current circuit protection is required. Its DIN 43620 size 3 construction provides compatibility with appropriately rated standardised fuse equipment.
Key Advantages
- High-current 800 A DIN fuse for industrial electrical protection.
- DIN 43620 size 3 / NH3 format for compatible fuse equipment.
- gG full-range fuse characteristic for overload and short-circuit protection.
- 500 V AC rated voltage for low-voltage power distribution systems.
- Suitable for protection of cables, distribution circuits and industrial electrical equipment.
- ABB manufacture for integration with compatible industrial fusebases and switchgear.
Key Features
- ABB OFAF fuse range.
- 800 A rated current.
- 500 V AC rated voltage.
- DIN 43620 size 3 / NH3 fuse format.
- gG general-purpose fuse characteristic.
- Full-range protection against overload and short-circuit currents.
- Designed for low-voltage industrial and commercial distribution applications.
- Suitable for compatible NH3 fusebases and fuse-switching equipment.
Reliable Protection for Low-Voltage Power Systems
Fuse links such as the ABB OFAF3H800 protect electrical circuits by safely interrupting excessive current when an overload or short circuit occurs. The fuse element operates when current exceeds its designed limits, helping isolate the affected circuit and protect cables, switchgear and connected electrical equipment from potentially damaging fault currents.
The OFAF3H800's gG characteristic provides full-range protection suitable for general industrial and power-distribution applications. Its standardised DIN 43620 size 3 construction allows integration with compatible NH3 fusebases, fuse switches and switch-fuse systems, making it suitable for both new installations and replacement applications.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main and sub-distribution switchboards.
- Industrial switchgear and control panels.
- Cable and feeder circuit protection.
- Fuse switches and switch-fuse assemblies.
- Commercial and industrial electrical installations.
Technical Specifications
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| Fuse Type | NH (DIN) | |
|---|---|---|
| Fuse Size | NH3 | |
| Current | 800 A | |
| Device Type | Fuse link | |
| Series | OFAF | |
| ABB order code | OFAF3H800 | |
| Product type | DIN fuse link | |
| ABB product group | 311002-Fuses And Fusebases | |
| Rated current | 800 A | |
| Rated voltage | 500 V AC | |
| Fuse size | Size 3 / NH3 | |
| Standard format | DIN 43620 | |
| Fuse utilisation category | gG | |
| Protection function | Full-range overload and short-circuit protection |
Frequently Asked Questions
What is the ABB OFAF3H800 used for?
The ABB OFAF3H800 is used to provide overload and short-circuit protection in low-voltage electrical distribution and industrial power systems.
What is the current rating of the ABB OFAF3H800?
The OFAF3H800 has a rated current of 800 A.
What voltage is the OFAF3H800 rated for?
The ABB OFAF3H800 has a rated voltage of 500 V AC.
What fuse size is the ABB OFAF3H800?
The OFAF3H800 is a DIN 43620 size 3 / NH3 fuse link designed for use with compatible size 3 fuse equipment.
What does the gG rating of the OFAF3H800 mean?
The gG utilisation category identifies the OFAF3H800 as a general-purpose full-range fuse designed to provide protection against both overload and short-circuit currents.
Trusted Industrial Circuit Protection
ABB fuse links and fusebases are designed for dependable low-voltage circuit protection, with standardised fuse formats that support reliable integration into industrial power distribution and switchgear applications.
