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1SCA022627R7830 ABB 1250 A gG DIN Size 4 500 V Fuse Link
ABB OFAF4H1250 is a 1250 A gG DIN size 4 / NH4 HRC fuse link rated at 500 V AC for dependable overload and short-circuit protection in high-current industrial low-voltage distribution systems.
£175.82
Why Choose the ABB OFAF4H1250 1250 A gG DIN Fuse?
The ABB OFAF4H1250 is a heavy-duty 1250 A gG HRC fuse link designed for dependable overload and short-circuit protection in high-current low-voltage electrical distribution systems. Part of the ABB OFAF range of DIN-type fuse links, this model combines a DIN size 4 / NH4 format with a general-purpose gG operating characteristic.
Designed for industrial power distribution, switchgear and high-current fuse applications, the OFAF4H1250 has a rated voltage of 500 V AC. Its gG utilisation category provides full-range protection against overload and short-circuit currents, making it suitable for protecting cables, conductors and electrical distribution equipment in demanding industrial installations.
With a rated current of 1250 A, the OFAF4H1250 uses the heavy-duty DIN size 4 / NH4 format for installation in compatible high-current fuse bases and switchgear. Its HRC construction provides reliable fault-current interruption, while its approximately 2 kg construction reflects the robust design required for major power-distribution applications.
Key Advantages
- Heavy-duty 1250 A gG HRC fuse link for high-current industrial protection.
- DIN size 4 / NH4 construction for compatible high-current fuse equipment.
- 500 V AC rated voltage for low-voltage electrical distribution systems.
- gG utilisation category provides general-purpose full-range protection.
- HRC construction provides dependable interruption of high fault currents.
- Suitable for major switchboards, distribution systems and industrial power installations.
Key Features
- ABB OFAF DIN-type HRC fuse link.
- 1250 A rated current.
- 500 V AC rated voltage.
- DIN size 4 / NH4 fuse format.
- gG general-purpose utilisation category.
- 87 W power loss at rated current.
- Full-range overload and short-circuit protection.
- Heavy-duty construction for high-current electrical distribution.
Reliable High-Current Protection for Low-Voltage Distribution
HRC fuse links protect electrical circuits by interrupting excessive current before cables, conductors and connected equipment can be damaged. The ABB OFAF4H1250 uses a gG characteristic to provide full-range protection against both overload and short-circuit conditions in high-current industrial low-voltage distribution circuits.
The DIN size 4 / NH4 format is designed for high-current fuse applications and enables the OFAF4H1250 to be integrated with appropriately rated fuse bases and switchgear. Its robust construction makes it suitable for major distribution circuits where reliable protection at currents up to 1250 A is required.
Typical Applications
- High-current industrial low-voltage power distribution.
- Main electrical switchboards and distribution panels.
- High-current fuse bases and switchgear.
- Cable and conductor protection.
- Industrial plant power distribution.
- Commercial and industrial electrical installations.
Technical Specifications
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| Voltage | 500 V | |
|---|---|---|
| Fuse Type | NH (DIN) | |
| Fuse Size | NH4 | |
| Fuse Class | gG | |
| Current | 1250 A | |
| Device Type | Fuse link | |
| Series | OFAF | |
| ABB order code | 1SCA022627R7830 | |
| Product type | HRC fuse link | |
| Rated current | 1250 A | |
| Rated voltage | 500 V AC | |
| Fuse size | DIN size 4 / NH4 | |
| Utilisation category | gG | |
| Power loss | 87 W | |
| Dimensions (H × W × D) | approx. 200 × 68 × 119 mm | |
| Weight | approx. 2 kg | |
| Application | General-purpose full-range circuit protection | |
| ABB product group | 311002-Fuses And Fusebases |
Frequently Asked Questions
What is the ABB OFAF4H1250 used for?
The OFAF4H1250 is a 1250 A gG HRC fuse link used to provide overload and short-circuit protection in high-current low-voltage electrical distribution systems.
What size is the ABB OFAF4H1250?
The OFAF4H1250 is a DIN size 4 / NH4 fuse link designed for compatible high-current fuse equipment.
What is the rated current of the OFAF4H1250?
The ABB OFAF4H1250 has a rated current of 1250 A.
What voltage is the OFAF4H1250 rated for?
The OFAF4H1250 has a rated voltage of 500 V AC.
What does the gG classification of the OFAF4H1250 mean?
The gG utilisation category identifies a general-purpose full-range fuse designed to provide protection against both overload and short-circuit currents.
Trusted Industrial Circuit Protection from ABB
ABB OFAF HRC fuse links provide dependable high-current circuit protection with standardised DIN formats and robust construction for industrial electrical distribution, switchgear and power applications.
