Rittal SV9677.310 NH size 3 slimline fuse-switch disconnector with 630 A rating, 690 V AC three-phase operation and M12 bolt connection for industrial power distribution systems.
£177.94
The Rittal SV9677.310 is a NH slimline fuse-switch disconnector designed for reliable switching and protection of low-voltage power distribution circuits. As part of the advanced Rittal SV / Ri4Power power distribution system, it provides a compact and dependable solution for industrial switchgear assemblies using NH size 3 fuse inserts.
This 3-pole NH slimline fuse-switch disconnector is designed for 185 mm busbar systems and supports a rated operating current of 630 A. Its switchable design, robust construction and compatibility with Rittal busbar systems make it suitable for demanding industrial low-voltage distribution applications.
The Rittal SV9677.310 features a M12 bolt connection, operates at 690 V AC three-phase and supports round conductor connections from 6–240 mm². It is suitable for installations requiring NH fuse protection, reliable isolation and integration with current transformer applications.
NH fuse-switch disconnectors combine switching and fuse protection functions, allowing operators to safely isolate circuits while protecting electrical equipment against overload and short-circuit conditions. They are widely used in industrial switchgear, energy distribution systems and automation infrastructure.
The SV9677.310 provides electrical engineers and panel builders with a robust Rittal solution for integrating NH size 3 fuse protection into 185 mm busbar assemblies. Its modular design enables efficient installation within modern low-voltage distribution systems.
| Manufacturer | Rittal |
|---|---|
| Series | SV / Ri4Power Power Distribution System |
| Model | SV9677.310 |
| Product type | NH slimline fuse-switch disconnector |
| Fuse size | NH 3 |
| Number of poles | 3-pole |
| Rated operating current | 630 A |
| Rated operating voltage | 690 V AC, 3-phase |
| Electrical connection | Bolt M12 |
| Busbar system spacing | 185 mm |
| Suitable busbar height | 10 mm |
| Round conductor connection | 6–240 mm² |
| Material | Polyamide |
| Fire protection | UL 94-V0 |
| Contact material | Partially silver-plated hard copper |
| Dimensions (W × H) | 100 × 670 mm |
| Weight | approx. 5 kg |
| Copper weight | approx. 2.47 kg |
| Packaging unit | 1 piece |
The Rittal SV9677.310 is used for switching and protecting low-voltage electrical circuits using NH size 3 fuse inserts within industrial power distribution systems.
The SV9677.310 is designed for NH size 3 fuse inserts.
The fuse-switch disconnector supports a rated operating current of 630 A.
The unit uses an M12 bolt connection for electrical connection.
The unit is installed in industrial switchgear assemblies and Rittal busbar distribution systems with 185 mm centre spacing.
Rittal SV power distribution components are widely used by switchgear manufacturers and electrical engineers to create safe, reliable and professionally engineered low-voltage distribution systems.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
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...