RO16 63A Fuse Link Overview
The GA&DA RO16 63A fuse link is a cylindrical low-voltage fuse designed for reliable protection in electrical distribution and control systems. It is used to protect circuits against overload and short-circuit conditions while maintaining a compact size that fits modular fuse holders and panel assemblies.
The 14x51mm cylindrical format is widely used in industrial and commercial low-voltage systems because it offers a practical balance between compact installation size and higher current capacity compared with smaller 10x38mm fuse links.
For panel builders and electrical buyers, the RO16 63A model is especially suitable when a compact fuse solution is needed for equipment feeders, distribution lines and machinery protection. It is also a natural matching option for the GA&DA RT18-63 fuse holder, which is the corresponding fuse base series for this size.
Because the product has clear marking on the body, it is easy for installers and maintenance teams to identify the current rating and fuse type during replacement or inspection.
Product Features
14x51mm Cylindrical Format
The RO16 fuse link uses a standard 14x51mm cylindrical size, which is widely recognized in low-voltage protection systems. This format allows convenient replacement and compatibility with matching cylindrical fuse holders.
63A Rated Current
This specific model is rated at 63A, making it suitable for applications requiring more current capacity than a 10x38mm 32A fuse, while still remaining compact enough for modular panel layouts.
gG Full-Range Protection
The fuse is marked gG, which means it is designed for general-purpose full-range protection. In practical use, this allows it to provide both overload protection and short-circuit protection for standard low-voltage circuits.
Typical gG protection applications include:
- Power distribution circuits
- Equipment feeder circuits
- Cable protection
- Control cabinet power lines
- Industrial electrical installations
500V AC Rated Voltage
The fuse body shows a 500V AC rating. This makes the RO16 suitable for a broad range of low-voltage installations where this system voltage falls within the equipment design requirements.
100kA Breaking Capacity
The marking 500V~100kA indicates the fuse can interrupt high fault current levels when correctly applied in a suitable system. This is an important consideration in industrial and commercial installations where prospective short-circuit current may be high.
IEC 60269 Standard
The product is marked IEC 60269, which is the common international standard for low-voltage fuse systems. This helps purchasers and engineers confirm that the fuse is intended for standardized low-voltage protection applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | GA&DA |
| Series | RO16 |
| Product Type | Cylindrical Fuse Link |
| Rated Current | 63A |
| Fuse Size | 14x51mm |
| Operating Class | gG |
| Rated Voltage | 500V AC |
| Breaking Capacity | 100kA |
| Standard | IEC 60269 |
| Certification Marking | CE |
| Compatible Fuse Base | RT18-63 Series |
| Application | Low-Voltage Circuit Protection |
Typical Applications
The RO16 63A fuse link is suitable for many low-voltage protection applications where a compact cylindrical fuse is required.
Typical uses include:
- Low-voltage distribution boards
- Industrial control cabinets
- Switchboards
- Machinery protection circuits
- Factory automation equipment
- Commercial electrical panels
- OEM electrical assemblies
- Equipment feeder protection
- Auxiliary power distribution
- Modular DIN rail protection systems
In many cases, the 14x51mm size is preferred when the application requires a higher current rating than a 10x38mm fuse can typically provide, while avoiding the larger footprint of heavier fuse systems.
When installed with a matching fuse holder, the RO16 63A fuse can be replaced quickly during maintenance, which is helpful for minimizing downtime in industrial environments.
Selection Considerations
Choosing the correct fuse should never depend on physical size alone. Before selecting the RO16 63A fuse link, the following points should be checked carefully:
- Circuit operating current
- System voltage
- Fuse operating class
- Prospective short-circuit current
- Cable and conductor capacity
- Required coordination with upstream protection
- Compatible fuse holder or fuse base
A 63A fuse should be selected only when the circuit design and conductor sizing support that rating. In some applications, temporary overload, starting current or inrush current may affect the correct fuse choice.
For systems with motors, transformers or switching power equipment, it is also important to evaluate how the fuse will coordinate with the rest of the protection system. This helps reduce unnecessary fuse operation and supports better protection performance.
FAQ
What is the size of the RO16 fuse link?
The RO16 uses a standard 14x51mm cylindrical fuse format.
What is the rated current of this model?
The supplied product images show a 63A model.
What does gG mean on the fuse body?
gG means the fuse is designed for general-purpose full-range protection, including overload and short-circuit protection in low-voltage circuits.
What is the rated voltage?
The fuse body is marked 500V AC.
What is the breaking capacity?
The supplied RO16 63A product is marked with a 100kA breaking capacity.
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