RT18-63 Fuse Holder Overview
The GA&DA RT18-63 fuse holder is designed for mounting and isolating 14x51mm cylindrical fuse links in low-voltage electrical distribution and industrial control systems.
With a rated operational current of 63A, the RT18-63 provides greater current capacity than smaller 10x38mm fuse holder models while maintaining a compact modular structure suitable for DIN rail installation.
The product can be installed in distribution boards, control panels, switchboards, electrical cabinets and industrial equipment where reliable fuse protection and convenient maintenance are required.
Based on the available product configurations, two main versions are supplied:
- RT18-63: Standard version without indicator
- RT18-63Z: Version with indicator
Both versions are available in 1P and 2P configurations, giving panel builders, distributors and industrial buyers different options according to circuit design and maintenance requirements.
Key Features of the RT18-63 Fuse Holder
63A Rated Current
The RT18-63 series supports a rated operational current of up to 63A, making it suitable for medium-current low-voltage electrical protection applications.
14x51mm Cylindrical Fuse Compatibility
This RT18-63 fuse holder is designed for standard 14x51mm cylindrical fuse links, providing a practical fuse mounting and replacement solution for electrical panels and equipment.
1P and 2P Configurations
The available product range includes:
- RT18-63 1P
- RT18-63 2P
- RT18-63Z 1P
- RT18-63Z 2P
This allows users to select the appropriate configuration for different circuit layouts.
Optional Indicator Version
The RT18-63Z version includes an indication function, helping maintenance personnel identify fuse status more conveniently during inspection.
DIN Rail Installation
The modular design supports standard DIN rail mounting, making installation easier inside distribution boards, switchboards and electrical control cabinets.
High Breaking Capacity with Fuse
When used together with a suitable fuse link, the series provides high breaking capacity for short-circuit and overcurrent protection.
Specified breaking capacity with fuse:
- 100kA at 500V AC
- 50kA at 690V AC
IP20 Protection
The RT18-63 series has an IP20 protection degree and is intended for installation inside suitable electrical enclosures and cabinets.
Technical Specifications of RT18-63 Fuse Holder
| Parameter | Specification |
|---|---|
| Brand | GA&DA |
| Series | RT18 |
| Model | RT18-63 / RT18-63Z |
| Product Type | Cylindrical Fuse Holder / AC Fuse Base |
| Rated Operational Current (Ie) | 63A |
| Applicable Fuse Size | 14x51mm |
| Available Pole Options | 1P / 2P |
| Indicator | RT18-63: No / RT18-63Z: Yes |
| Rated Insulation Voltage (Ui) | 800V |
| Rated Impulse Withstand Voltage (Uimp) | 6kV |
| Wiring Range | 1.5–35mm² |
| Mounting Method | DIN Rail Installation |
| Breaking Capacity with Fuse | 100kA at 500V AC / 50kA at 690V AC |
| Utilization Category | AC-22B |
| IP Degree | IP20 |
| Reference Standard | IEC 60269-2 / UL 248-19 |
RT18-63 Dimensions
According to the supplied product catalogue, the RT18-63 series uses the following reference dimensions:
| Dimension | Size |
| A1 | 103mm |
| A2 | 105mm |
| B | 27mm |
| H1 | 80mm |
| H2 | 110mm |
| Applicable Fuse Size | 14x51mm |
| Rated Current | 63A |
These dimensions can be used as a reference when planning installation space inside distribution boards and electrical cabinets.
Available RT18-63 Models
| Model | Pole | Indicator | Fuse Size | Rated Current |
| RT18-63/1P | 1P | No | 14x51mm | 63A |
| RT18-63/2P | 2P | No | 14x51mm | 63A |
| RT18-63Z/1P | 1P | Yes | 14x51mm | 63A |
| RT18-63Z/2P | 2P | Yes | 14x51mm | 63A |
The standard and indicator-equipped configurations allow customers to choose according to panel design, circuit requirements and maintenance preferences.
Applications of the RT18-63 Fuse Holder
The RT18-63 14×51 fuse holder can be used in a wide range of industrial and commercial low-voltage electrical systems.
Typical applications include:
- Low-voltage distribution boards
- Industrial electrical control panels
- Switchboards
- Machinery control cabinets
- Factory automation equipment
- Power distribution systems
- Commercial electrical installations
- OEM electrical assemblies
- Industrial equipment protection
- Electrical panel manufacturing
The 63A rated current and 14x51mm fuse format make the RT18-63 particularly suitable for applications requiring higher current capacity than standard 10x38mm fuse holders.
Its DIN rail mounting structure also simplifies installation and replacement inside modular electrical panels.
Why Choose GA&DA RT18-63 Fuse Holders?
For electrical distributors, panel builders and industrial buyers, fuse holders need to provide reliable protection while remaining easy to install and maintain.
The GA&DA RT18-63 series combines a standard cylindrical fuse format with modular DIN rail installation and optional fuse status indication.
Key advantages include:
- 63A rated operational current
- Standard 14x51mm cylindrical fuse compatibility
- 1P and 2P options
- Standard RT18-63 version
- Indicator-equipped RT18-63Z version
- DIN rail mounting
- Compact modular construction
- 1.5–35mm² wiring range
- Suitable for industrial and commercial electrical systems
- Bulk supply for distributors and project buyers
- OEM requirements supported according to order needs
For distributors, wholesalers, panel manufacturers or OEM buyers looking for a reliable 63A cylindrical fuse holder, GA&DA can provide suitable RT18-63 configurations according to your required pole number, version and purchase quantity.
Contact us with your required model and quantity for technical support and quotation.
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