Why Choose the ABB 1SEP204484R1500 XRG63BS-50/5-3P Switch Disconnector Fuse?
The ABB 1SEP204484R1500, also known as the XRG63BS-50/5-3P, is a compact three-pole switch disconnector fuse from the ABB SlimLine XR Gold range. Designed for low-voltage power distribution systems, it combines load switching, circuit isolation and fuse protection within a single busbar-mounted device.
Rated at 63 A and 690 V AC, this model is designed for installations with 50 mm phase spacing and 5 mm-thick busbars. It uses British Standard A3 fuse links, making it suitable for industrial and commercial systems that require dependable protection for mixed, inductive and motor loads.
The XRG63BS-50/5-3P supports both AC-22B and AC-23A utilisation categories. Its narrow 50 mm width helps maximise the number of outgoing feeders within a switchboard, while the front-facing IP41 protection and manual operating mechanism support safe, straightforward operation and maintenance.
Key Advantages
- Combines switching, isolation and fuse protection in one device.
- Compact 50 mm-wide design helps maximise switchboard capacity.
- Rated for demanding mixed, inductive and motor-load applications.
- Designed for direct mounting on 50 mm busbar systems.
- Uses readily replaceable British Standard A3 fuse links.
- Suitable for horizontal or vertical switchboard configurations.
Key Features
- ABB SlimLine XR Gold series.
- XRG63BS-50/5-3P model.
- 63 A rated current.
- 690 V AC rated operational voltage.
- Three-pole configuration.
- British Standard fuse system.
- A3 fuse-link compatibility.
- 50 mm phase spacing.
- 5 mm busbar thickness compatibility.
- Manual operating mechanism.
- Bolt-type terminals.
- Front protection rated to IP41.
British Standard Fuse Protection for Compact Distribution Systems
British Standard fuse switch disconnectors provide reliable overcurrent protection while allowing an electrical circuit to be manually switched and safely isolated. The replaceable fuse links interrupt excessive fault currents, while the disconnector mechanism creates a defined isolation point for inspection and maintenance.
The ABB SlimLine XR Gold design is particularly well suited to densely populated switchboards. Its slim form factor and direct busbar connection help reduce installation space, cabling requirements and assembly time while maintaining dependable electrical performance.
Typical Applications
- Industrial low-voltage switchboards.
- Commercial power distribution panels.
- Motor control centres.
- Manufacturing and process equipment.
- OEM machinery and control panels.
- Infrastructure and utility distribution systems.
- Outgoing feeder protection.
