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1SCA022627R6430 ABB 300A gG DIN Size 3 Fuse 500V Dual Indication
ABB OFAF3H300 is a 300 A gG DIN size 3 HRC fuse link rated at 500 V AC with dual indication for reliable general-purpose overload and short-circuit protection.
£24.82
Why Choose the ABB OFAF3H300 DIN Fuse?
The ABB OFAF3H300 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 OFAF3H300 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 300 A and a rated voltage of 500 V AC, the OFAF3H300 provides dependable protection for demanding industrial and commercial low-voltage circuits. ABB order code 1SCA022627R6430 identifies this specific 300 A DIN size 3 fuse link.
Key Advantages
- Reliable gG general-purpose overcurrent and short-circuit protection.
- 300 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.
- 300 A rated current.
- 500 V AC rated voltage.
- 250 V DC 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.
- 20 W power loss at rated current.
- Approximately 0.63 kg unit weight.
- ABB order code 1SCA022627R6430.
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 OFAF3H300 combines a 300 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.
Technical Specifications
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| Voltage | 500 V | |
|---|---|---|
| Device Type | Fuse link | |
| Current | 300 A | |
| Fuse Class | gG | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH3 | |
| Fuse Indication | Dual indicator | |
| Series | OFAF | |
| ABB order code | 1SCA022627R6430 | |
| Product group | 311002-Fuses And Fusebases | |
| Product type | DIN-type HRC fuse link | |
| Fuse utilisation category | gG | |
| Rated current | 300 A | |
| Rated voltage AC | 500 V AC | |
| Rated voltage DC | 250 V DC | |
| DIN / NH size | 3 / NH3 | |
| Indication | Dual indication | |
| Power loss at rated current | 20 W | |
| Weight | approx. 0.63 kg | |
| Application | General-purpose low-voltage circuit protection |
Frequently Asked Questions
What is the ABB OFAF3H300 used for?
The ABB OFAF3H300 is a 300 A gG DIN-type HRC fuse link used for general-purpose overload and short-circuit protection in low-voltage electrical systems.
What is the current rating of the ABB OFAF3H300?
The OFAF3H300 has a rated current of 300 A.
What voltage is the ABB OFAF3H300 rated for?
The OFAF3H300 is rated at 500 V AC and 250 V DC.
What size is the ABB OFAF3H300 fuse?
The OFAF3H300 is a DIN size 3 / NH3 fuse link designed for use with compatible fuse bases, fuse switches and switch-fuse equipment.
What does the gG rating of the OFAF3H300 mean?
The gG utilisation category identifies the OFAF3H300 as a general-purpose full-range fuse designed to provide protection against both overload and short-circuit currents.
Trusted ABB Circuit Protection
ABB OFAF DIN-type fuse links provide dependable overcurrent and short-circuit protection for low-voltage electrical systems, combining established gG fuse technology with standardised DIN construction for industrial and electrical distribution applications.
