ABB XRG3-185/10-4P-EFM four-pole switch disconnector fuse rated at 630 A for industrial low-voltage power distribution and circuit isolation.
£4,129.72
The ABB 1SEP204483R3701, also identified as the XRG3-185/10-4P-EFM, is a heavy-duty four-pole switch disconnector fuse designed for switching, isolation and fuse protection in industrial low-voltage power distribution systems. As part of the proven ABB SlimLine XR Gold fusegear range, it delivers reliable performance for demanding switchboard and panel-building applications while providing safe operation under load.
This manually operated fused switch disconnector combines dependable load switching with effective overcurrent and short-circuit protection when fitted with compatible NH3 fuse links. Its robust construction, front-operated mechanism and busbar mounting arrangement make it ideal for industrial switchboards where reliability, serviceability and space efficiency are important.
With a rated operational current of 630 A and a maximum operational voltage of 500 V AC, the XRG3-185/10-4P-EFM is designed for 185 mm busbar spacing with 10 mm busbar thickness. Its four-pole configuration makes it suitable for isolating three-phase systems with neutral switching.
Switch disconnector fuses provide safe manual switching together with visible electrical isolation and dependable overcurrent protection using replaceable fuse links. They are widely used in industrial switchboards and distribution equipment where equipment protection, personnel safety and ease of maintenance are critical.
The ABB SlimLine XR Gold range has been engineered to provide compact dimensions, dependable switching performance and straightforward installation for modern industrial electrical distribution systems.
| Phase | Three Phase |
|---|---|
| Manufacturer | ABB |
| Series | SlimLine XR Gold |
| Product ID | 1SEP204483R3701 |
| Model | XRG3-185/10-4P-EFM |
| Product type | Switch disconnector fuse |
| Rated operational current | 630 A |
| Maximum operational voltage | 500 V AC |
| Number of poles | 4 |
| Fuse size | NH3 |
| Busbar spacing | 185 mm |
| Busbar thickness | 10 mm |
| Main circuit connection | Bolt connection |
| Protection rating | IP41 (front) |
| Mounting type | Busbar mounting |
| Short-circuit rating (Iq) | 55 kA |
| Operation | Manual front-operated |
| EAN | 3800161651700 |
| Country of origin | Bulgaria |
| HS Code | 85363090 |
| Country of Manufacture | Bulgaria |
It is designed to switch, isolate and protect high-current electrical circuits in industrial low-voltage distribution systems.
The XRG3-185/10-4P-EFM has a rated operational current of 630 A.
This model is designed for use with compatible NH3 fuse links.
The unit is designed for 185 mm busbar spacing with a 10 mm busbar thickness.
It is commonly installed in industrial switchboards, power distribution panels and motor control centres for reliable switching and circuit isolation.
ABB SlimLine XR Gold switch disconnector fuses are trusted by electrical engineers and panel builders worldwide for dependable switching, reliable isolation and long-term circuit protection in demanding industrial environments.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...