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1SCA022627R3330 ABB 20A gG DIN Size 1 500V Fuse Link Dual Indication
ABB OFAF1H20 is a 20 A gG DIN size 1 fuse link rated at 500 V AC with dual indication for dependable full-range overload and short-circuit protection.
£9.66
Why Choose the ABB OFAF1H20 20A gG DIN Fuse?
The ABB OFAF1H20 is a dependable 20 A gG HRC DIN fuse link designed for full-range protection of low-voltage electrical circuits. Part of ABB's OFAF range, it combines a general-purpose fuse characteristic with a standardised DIN size 1 format for industrial power distribution, machinery and control applications.
The OFAF1H20 uses the gG utilisation category, providing full-range protection against both overload and short-circuit currents. This makes it suitable for protecting cables, conductors and general electrical distribution circuits when installed in compatible DIN fusegear.
With a rated current of 20 A, a rated voltage of 500 V AC and a DIN size 1 construction, the OFAF1H20 provides reliable circuit protection for industrial installations. It features dual indication for convenient identification of fuse operation and has a power loss of approximately 3.5 W.
Key Advantages
- Dependable 20 A full-range circuit protection.
- 500 V AC rated voltage for low-voltage industrial applications.
- gG utilisation category provides overload and short-circuit protection.
- DIN size 1 construction for compatible industrial fusegear.
- Dual indication assists with identification of fuse operation.
- Standardised DIN format for integration into electrical distribution and control equipment.
Key Features
- ABB OFAF HRC fuse link range.
- 20 A rated current.
- 500 V AC rated voltage.
- gG general-purpose fuse characteristic.
- DIN size 1 fuse format.
- Dual indication for convenient fuse status identification.
- Full-range overload and short-circuit protection.
- Approximately 3.5 W power loss at rated current.
Reliable Full-Range Protection for Electrical Circuits
gG fuse links such as the ABB OFAF1H20 provide full-range circuit protection against both overload and short-circuit conditions. When excessive current reaches the fuse operating threshold, the fuse element interrupts the circuit to help protect cables, conductors and connected electrical equipment from damaging fault currents.
The OFAF1H20 combines a 20 A current rating with a 500 V AC voltage rating and DIN size 1 construction. Its standardised DIN format and dual indication make it suitable for switchboards, distribution equipment, industrial machinery and control systems requiring dependable and maintainable fuse protection.
Typical Applications
- Industrial low-voltage electrical distribution.
- Switchboards and distribution panels.
- Cable and conductor protection.
- Industrial machinery and automation equipment.
- Fuse switches and switch-disconnector assemblies.
- Electrical control panels and commercial installations.
Technical Specifications
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| Voltage | 500 V | |
|---|---|---|
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH1 | |
| Fuse Class | gG | |
| Current | 20 A | |
| Fuse Indication | Dual indicator | |
| Series | OFAF | |
| ABB order code | 1SCA022627R3330 | |
| Product type | HRC DIN fuse link | |
| Rated current | 20 A | |
| Rated voltage | 500 V AC | |
| Utilisation category | gG | |
| Fuse system | DIN | |
| Fuse size | Size 1 | |
| Indication | Dual indication | |
| Power loss | approx. 3.5 W | |
| Protection function | Full-range overload and short-circuit protection | |
| Product net weight | approx. 0.28 kg | |
| ABB product group | 311002-Fuses And Fusebases |
Frequently Asked Questions
What is the ABB OFAF1H20 used for?
The ABB OFAF1H20 is a 20 A gG DIN fuse link designed to provide full-range overload and short-circuit protection for low-voltage electrical circuits.
What is the current rating of the OFAF1H20?
The OFAF1H20 has a rated current of 20 A.
What voltage is the ABB OFAF1H20 rated for?
The OFAF1H20 has a rated voltage of 500 V AC.
What fuse size is the ABB OFAF1H20?
The OFAF1H20 is a DIN size 1 fuse link.
What does the gG classification mean?
The gG classification identifies a general-purpose full-range fuse link designed to provide protection against both overload and short-circuit currents.
Does the ABB OFAF1H20 have fuse indication?
Yes. The OFAF1H20 features dual indication, helping maintenance personnel identify fuse operation during inspection and fault finding.
Trusted by Electrical Professionals Worldwide
ABB OFAF HRC DIN fuse links provide dependable full-range circuit protection for industrial and commercial electrical installations, combining gG protection characteristics with standardised DIN construction for integration into power distribution, machinery and control systems.
