Why Choose the ABB 1SEP204488R3700 XRG400BS-185/10-4P Switch Disconnector Fuse?
The ABB 1SEP204488R3700, also identified as the XRG400BS-185/10-4P, is a robust four-pole switch disconnector fuse designed for reliable switching, circuit isolation and fuse protection in low-voltage electrical distribution systems. As part of the advanced ABB SlimLine XR Gold fusegear range, it is engineered for industrial switchboards and power distribution applications where dependable performance and efficient use of installation space are essential.
This manually operated fused switch disconnector combines load-switching capability with effective overcurrent and short-circuit protection when fitted with compatible British Standard fuse links. Its four-pole configuration allows simultaneous isolation of three phase conductors and the neutral conductor, making it suitable for distribution systems that require complete circuit disconnection.
With a rated operational current of 400 A at 500 V AC, the XRG400BS-185/10-4P is designed for a 185 mm phase distance and 10 mm busbar thickness. Its busbar-mounted SlimLine construction supports efficient installation in compatible low-voltage switchboards while helping panel builders maximise available enclosure space.
Key Advantages
- Heavy-duty four-pole switch disconnector fuse for industrial power distribution.
- 400 A rated operational current at 500 V AC.
- Combines load switching, circuit isolation and fuse protection in one assembly.
- Four-pole configuration enables switching of three phases and neutral.
- Designed for 185 mm phase spacing and 10 mm busbar thickness.
- Compact SlimLine design helps maximise available switchboard space.
Key Features
- ABB SlimLine XR Gold fusegear series.
- XRG400BS-185/10-4P extended product type.
- 400 A rated operational current.
- 500 V AC rated operational voltage.
- Four-pole configuration.
- Compatible with British Standard B4 fuse links.
- Manual operating mechanism for controlled circuit isolation.
- Busbar-mounted format for low-voltage switchboard installations.
Reliable Four-Pole Circuit Protection and Isolation
Switch disconnector fuses provide a dependable method of switching and isolating electrical circuits while incorporating replaceable fuse protection against overloads and short circuits. The four-pole arrangement allows the neutral conductor to be disconnected together with all three phases, supporting safe maintenance and complete isolation in suitable distribution systems.
The ABB SlimLine XR Gold range uses a compact busbar-mounted design developed for efficient switchboard construction. Its plug-in connection concept, integrated support features and generous cable termination area help simplify installation, servicing and replacement in industrial low-voltage assemblies.
Typical Applications
- Industrial low-voltage switchboards.
- Four-wire power distribution systems.
- Outgoing feeder circuits.
- Motor control centres.
- Manufacturing and process facilities.
- Commercial, infrastructure and utility installations.
