ABB 1SEP204488R3500 XRG400BS-185/10-3P three-pole switch disconnector fuse rated at 400 A and 690 V AC for industrial low-voltage power distribution systems.
£1,714.45
The ABB 1SEP204488R3500, also identified as the XRG400BS-185/10-3P, is a high-performance three-pole switch disconnector fuse designed for switching, circuit isolation and fuse protection in low-voltage electrical distribution systems. As part of the advanced ABB SlimLine XR Gold fusegear range, it provides dependable protection and efficient installation for industrial switchboards, distribution panels and power control applications.
This manually operated fused switch disconnector combines reliable load switching with overcurrent and short-circuit protection when fitted with compatible British Standard fuse links. Its busbar-mounted construction helps reduce installation time and makes effective use of available space inside electrical distribution assemblies.
With a rated operational current of 400 A and a rated operational voltage of up to 690 V AC, the XRG400BS-185/10-3P is suitable for demanding industrial feeder circuits. It is specifically designed for a 185 mm busbar distance and 10 mm busbar thickness, providing compatibility with appropriately configured low-voltage switchboards.
Switch disconnector fuses provide a dependable method of switching and isolating electrical circuits while incorporating fuse protection against overloads and short circuits. This makes them particularly suitable for outgoing feeders, industrial distribution boards and switchgear assemblies where reliable fault protection and safe maintenance access are required.
The ABB SlimLine XR Gold range is engineered to improve switchboard performance through efficient construction, reduced power losses and flexible installation. The XRG400BS-185/10-3P supports reliable operation in high-current low-voltage systems while helping panel builders create compact and serviceable electrical assemblies.
| Phase | Three Phase |
|---|---|
| Manufacturer | ABB |
| Series | SlimLine XR Gold |
| Product ID | 1SEP204488R3500 |
| Model | XRG400BS-185/10-3P |
| Product type | Switch disconnector fuse |
| Number of poles | 3 |
| Rated operational current | 400 A |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage | 1,000 V |
| Rated impulse withstand voltage | 8 kV |
| Utilisation category | AC-22B / AC-23A |
| 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 |
| Protection rating | IP41 from the front |
| Main circuit connection | Bolt connection |
| Standard | IEC 60947-3 |
| Dimensions (W × H × D) | approx. 590 × 200 × 335 mm |
| Weight | approx. 15.23 kg |
| EAN | 3800161652059 |
| Country of origin | Bulgaria |
The ABB 1SEP204488R3500 is used to switch, isolate and provide fuse protection for high-current circuits in industrial low-voltage power distribution systems.
The XRG400BS-185/10-3P has a rated operational current of 400 A at operating voltages up to 690 V AC.
This switch disconnector is designed for use with compatible British Standard B4 fuse links.
The unit is designed for a 185 mm distance between phases and a 10 mm busbar thickness.
It is typically installed in industrial switchboards, power distribution panels, motor control centres and other low-voltage electrical assemblies.
ABB SlimLine XR Gold switch disconnector fuses are widely specified by electrical engineers, panel builders and industrial operators for dependable switching, circuit isolation and fuse protection in modern 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...