ABB XRG630BS-185/10-4P four-pole switch disconnector fuse rated at 630 A for industrial low-voltage power distribution and circuit isolation.
£2,324.19
The ABB 1SEP204489R3700, also known as the XRG630BS-185/10-4P, is a heavy-duty four-pole switch disconnector fuse designed for safe switching, reliable isolation and fuse protection in demanding low-voltage power distribution systems. Part of the renowned ABB SlimLine XR Gold range, it is engineered for industrial switchboards where high current capacity, compact installation and dependable operation are essential.
Designed for 185 mm busbar spacing with 10 mm busbar thickness, this manually operated switch disconnector fuse accommodates British Standard 3T Lawson fuse links and provides reliable protection against overloads and short circuits. Its four-pole design enables simultaneous isolation of all three phases and the neutral conductor, improving electrical safety during maintenance and servicing.
With a rated operational current of 630 A and a maximum operational voltage of 500 V AC, the XRG630BS-185/10-4P is ideally suited to industrial power distribution panels, motor control centres and critical infrastructure installations requiring high-performance switching and circuit protection.
Switch disconnector fuses combine dependable load switching, visible electrical isolation and high-performance overcurrent protection within a single assembly. They are widely used in industrial switchboards where operator safety, equipment protection and ease of maintenance are essential.
The ABB SlimLine XR Gold range has been developed to maximise installation efficiency while delivering dependable switching performance in demanding industrial environments. Its compact busbar-mounted design simplifies panel construction without compromising electrical performance.
| Phase | Three Phase |
|---|---|
| Manufacturer | ABB |
| Series | SlimLine XR Gold |
| Product ID | 1SEP204489R3700 |
| Model | XRG630BS-185/10-4P |
| Product type | Switch disconnector fuse |
| Rated operational current | 630 A |
| Maximum operational voltage | 500 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Utilisation category | AC-22B |
| Number of poles | 4 |
| Fuse system | British Standard |
| Fuse size | 3T Lawson |
| Busbar spacing | 185 mm |
| Busbar thickness | 10 mm |
| Connection type | Bolt connection |
| Protection rating | IP41 (front) |
| Mounting type | Busbar mounting |
| Conditional short-circuit current (Iq) | 55 kA |
| Power loss | 140 W |
| Dimensions (W × H × D) | 590 × 250 × 335 mm |
| Weight | Approx. 17.59 kg |
| EAN | 3800161652226 |
| Country of origin | Bulgaria |
| Standard | IEC 60947-3 |
It is used to safely switch, isolate and protect high-current electrical circuits within industrial low-voltage power distribution systems.
The XRG630BS-185/10-4P has a rated operational current of 630 A.
This model is designed for use with compatible British Standard 3T Lawson fuse links.
The unit is designed for 185 mm busbar spacing with a 10 mm busbar thickness.
It is commonly installed in industrial switchboards, motor control centres and low-voltage power distribution systems requiring dependable switching and circuit protection.
ABB SlimLine XR Gold switch disconnector fuses are trusted by electrical engineers, OEMs and panel builders for dependable switching, reliable circuit isolation and long-term performance in demanding industrial power distribution applications.
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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...