RO17 125A Fuse Link Overview
The GA&DA RO17 125A fuse link is a high-current cylindrical fuse designed for dependable overload and short-circuit protection in low-voltage electrical distribution systems.
Compared with smaller 10x38mm and 14x51mm cylindrical fuse links, the larger 22x58mm format supports higher-current applications while retaining the convenience of a replaceable cylindrical fuse system.
The RO17 series is suitable for electrical distribution equipment, industrial control panels, machinery and OEM assemblies where a compact but higher-capacity fuse solution is required.
For panel builders, electrical contractors and industrial buyers, the RO17 125A model provides a practical option when the circuit requires more current capacity than smaller cylindrical fuse formats can provide.
Product Features
125A Rated Current
The RO17 model shown is rated at 125A, making it suitable for higher-current circuits within industrial and commercial low-voltage distribution systems.
This current level is commonly required in feeder circuits, machinery power supplies and larger electrical panels.
22x58mm Cylindrical Fuse Size
The fuse uses a standard 22x58mm cylindrical format.
Compared with smaller cylindrical fuse sizes, this larger body provides a suitable format for higher current ratings while maintaining simple installation and replacement.
gG Full-Range Protection
The product is marked gG, which indicates general-purpose full-range fuse protection.
This type of fuse is designed to protect circuits against both:
- overload currents
- short-circuit currents
Typical protection targets include cables, conductors, feeders and general low-voltage electrical equipment.
500V AC Rated Voltage
The fuse body clearly shows a 500V AC rating.
This allows the RO17 125A fuse to be used in a wide range of industrial and commercial low-voltage systems where the operating voltage is within the specified rating.
100kA Breaking Capacity
The product is marked with a 100kA breaking capacity.
A high breaking capacity is especially important in industrial installations where the prospective short-circuit current can be substantial. The fuse must be capable of safely interrupting the fault current without causing further damage to the electrical system.
IEC 60269 Standard
The fuse is marked IEC 60269, indicating that the product is designed for applications covered by the international standard for low-voltage fuses.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | GA&DA |
| Series | RO17 |
| Product Type | Cylindrical Fuse Link |
| Rated Current | 125A |
| Fuse Size | 22x58mm |
| Operating Class | gG |
| Rated Voltage | 500V AC |
| Breaking Capacity | 100kA |
| Standard | IEC 60269 |
| Certification Marking | CE |
| Compatible Fuse Base | RT18-125 Series |
| Application | Low-Voltage Circuit Protection |
Typical Applications
The RO17 125A fuse link is suitable for electrical systems requiring higher-current cylindrical fuse protection.
Typical applications include:
- Industrial distribution boards
- Electrical switchboards
- Factory power distribution systems
- Industrial control cabinets
- Machinery power circuits
- Feeder protection
- OEM electrical equipment
- Commercial electrical distribution
- Automation systems
- Electrical panel assemblies
The 125A current rating makes the RO17 particularly suitable for circuits that require more protection capacity than typical 32A or 63A cylindrical fuse systems.
At the same time, the removable fuse format allows maintenance personnel to replace the fuse link without replacing the complete fuse holder or switching assembly.
Selection Considerations
When selecting the RO17 125A fuse link, engineers should evaluate the complete electrical system rather than choosing the fuse only by rated current.
Important selection factors include:
- Normal operating current
- Maximum expected load
- System voltage
- Cable and conductor rating
- Prospective short-circuit current
- Fuse operating class
- Compatible fuse holder
- Upstream and downstream protection
- Equipment starting or inrush current
The 125A rating should only be used where the conductor and connected equipment are designed for the corresponding current level.
For circuits containing motors, transformers or other equipment with temporary inrush currents, the fuse operating characteristics should be checked carefully to prevent unnecessary fuse operation during normal startup conditions.
Correct coordination also helps ensure that the fuse nearest to the fault operates first, reducing unnecessary shutdown of other parts of the electrical system.
Compatible Fuse Holder
The RO17 uses a 22x58mm cylindrical format and should be installed in a compatible fuse holder.
Within the GA&DA product range, the corresponding option is:
RO17 Fuse Link + RT18-125 Fuse Holder
This combination provides a practical modular protection system for industrial distribution boards and electrical panels.
Using a correctly matched fuse holder helps ensure:
- correct physical fit
- reliable electrical contact
- convenient fuse replacement
- proper installation inside the panel
Why Choose the RO17 125A Fuse Link?
The RO17 is designed for buyers who require a compact cylindrical fuse format combined with a higher current rating.
Key advantages include:
- Standard 22x58mm fuse format
- 125A rated current
- gG general-purpose protection
- 500V AC rating
- 100kA breaking capacity
- IEC 60269 marking
- Compatible with RT18-125 fuse holders
- Suitable for industrial distribution systems
- Easy replacement during maintenance
- Suitable for distributor stock and OEM assembly
- Bulk purchasing support
For wholesalers, electrical distributors and panel manufacturers, the RO17 series can be supplied for replacement stock, equipment production and industrial project requirements.
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