ABB 1SEP204488R3700 XRG400BS-185/10-4P four-pole switch disconnector fuse rated at 400 A and 500 V AC for industrial low-voltage power distribution systems.
£2,185.71
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.
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.
| Phase | Three Phase |
|---|---|
| Manufacturer | ABB |
| Series | SlimLine XR Gold |
| Product ID | 1SEP204488R3700 |
| Model | XRG400BS-185/10-4P |
| Product type | Switch disconnector fuse |
| Number of poles | 4 |
| Rated operational current | 400 A at 500 V AC |
| Rated operational voltage | 500 V AC |
| Rated insulation voltage | 1,000 V |
| Rated impulse withstand voltage | 8 kV |
| Utilisation category | AC-22B |
| Fuse system | British Standard |
| Fuse size | B4 |
| Operating mode | Manual |
| Distance between phases | 185 mm |
| Compatible busbar thickness | 10 mm |
| Power loss at rated load | 100 W |
| Mounting type | Busbar mounting |
| Standard | IEC 60947-3 |
| Dimensions (W × H × D) | 590 × 250 × 335 mm |
| Weight | approx. 17.47 kg |
| EAN | 3800161652097 |
| Country of origin | Bulgaria |
It is used to switch, isolate and provide fuse protection for high-current circuits in industrial low-voltage power distribution systems.
The XRG400BS-185/10-4P has a rated operational current of 400 A at 500 V AC.
The four-pole configuration enables simultaneous switching and isolation of three phase conductors and the neutral conductor.
This switch disconnector is designed for compatible British Standard B4 fuse links.
The unit is designed for a 185 mm distance between phases and a 10 mm busbar thickness.
ABB SlimLine XR Gold switch disconnector fuses are widely specified by electrical engineers and panel builders for dependable switching, complete circuit isolation and reliable fuse protection in industrial low-voltage distribution systems.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...