Mersen M630D30S 630 A three-pole IEC fused switch disconnector with right-side operation for NH Size 3 fuse links, providing industrial switching, isolation and overcurrent protection.
£2,033.98
The Mersen M630D30S is a heavy-duty IEC fused switch disconnector engineered for safe switching, dependable electrical isolation and fuse-based overcurrent protection in demanding industrial low-voltage power distribution systems. With a 630 A current rating, it is ideally suited to high-capacity feeders, switchboards and industrial installations requiring reliable operation and safe maintenance procedures.
This model features a right-side-operated mechanism, providing greater flexibility when designing switchboards and electrical enclosures. The side-operated configuration allows the operating handle to be positioned where front-mounted operation may be impractical, making installation easier in complex panel layouts.
Designed for use with NH Size 3 fuse links, the M630D30S combines manual switching, positive circuit isolation and high-performance fuse protection within one assembly. Its three-pole configuration is suitable for switching and protecting three-phase electrical systems operating at up to 690 V AC.
Side-operated fused switch disconnectors provide a practical solution where switchboard layouts require the operating handle to be positioned away from the front of the enclosure. This allows greater flexibility during panel design while maintaining dependable switching and safe electrical isolation.
The Mersen M630D30S accepts suitable NH Size 3 fuse links to provide high-performance overload and short-circuit protection while establishing a clearly defined isolation point for maintenance. Its robust construction makes it well suited to demanding industrial power distribution systems.
| Current | 630 A |
|---|---|
| Manufacturer | Mersen |
| Model | M630D30S |
| Reference number | B1043281 |
| Product type | IEC fused switch disconnector |
| Rated current | 630 A |
| Rated operating voltage | Up to 690 V AC |
| Number of poles | 3 |
| Fuse size | NH Size 3 |
| Operating mechanism | Right-side operated |
| Primary function | Switching, isolation and overcurrent protection |
| Mounting application | Panel / switchboard installation |
| Weight | Approx. 13.9 kg |
The M630D30S is used to switch, isolate and provide fuse protection for high-current three-phase circuits in industrial low-voltage power distribution systems.
The Mersen M630D30S has a rated operational current of 630 A.
The switch is designed for NH Size 3 fuse links, allowing suitable fuse ratings to be selected according to the installation requirements.
The M630D30S features a right-side-operated mechanism, making it suitable for switchboards and enclosures requiring side-mounted operation.
The M630D30S is suitable for industrial low-voltage systems operating at up to 690 V AC.
Mersen fused switch disconnectors are trusted by panel builders, OEMs and industrial electrical engineers for dependable high-current switching, secure electrical isolation and reliable fuse protection in demanding 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...