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MERSEN FUSE BSL NH2400A 185mm BL2V403K400 BL2V403K400
Why Choose the MERSEN FUSE BSL NH2400A 185mm BL2V403K400 BL2V403K400?
£120.62
Why Choose the Mersen M1055734 BSL NH Vertical Fuse Rail?
The Mersen M1055734 is a heavy-duty BSL NH vertical fuse rail designed for dependable circuit protection and power distribution in industrial low-voltage switchboards. Also identified by the catalogue reference BL2V403K400, this three-pole fuse rail is rated at 400 A and accommodates standard NH size 2 fuse-links.
Designed for direct installation onto standard 185 mm busbar systems, the M1055734 provides a compact and efficient alternative to separately mounted fuse bases. Its vertical arrangement reduces wiring requirements, saves valuable switchboard space and supports fast assembly in commercial and industrial distribution systems.
The fuse rail incorporates V-terminal cable connections for secure conductor termination and features an IP20 touch-protected design. It is suitable for electrical systems operating at up to 690 V AC, making it an effective solution for feeder protection, machinery distribution and high-current switchboard applications.
Key Advantages
- 400 A rated current for demanding industrial distribution circuits.
- Accepts standard NH size 2 fuse-links.
- Designed for direct mounting onto 185 mm busbar systems.
- Three-pole configuration supports three-phase installations.
- Integrated IP20 touch protection improves operator safety.
- V-terminal connections provide secure cable termination.
- Vertical construction helps reduce switchboard space requirements.
- Modular BSL design supports straightforward installation and maintenance.
Key Features
- Mersen BSL NH vertical fuse rail.
- NH size 2 fuse-link compatibility.
- 400 A rated operational current.
- Suitable for voltages up to 690 V AC.
- Three-pole arrangement.
- Compatible with 185 mm busbar centres.
- V-terminal cable connection system.
- Touch-protected to IP20.
- Designed for fuse-links complying with IEC/EN 60269-2.
- Suitable for industrial and commercial low-voltage distribution assemblies.
Efficient Protection for High-Current Distribution
The Mersen M1055734 combines fuse mounting, conductor termination and busbar connection within one compact assembly. This integrated construction can reduce the number of separate components required inside a switchboard while helping simplify installation and future maintenance.
When fitted with an appropriately rated NH size 2 fuse-link, the fuse rail protects cables and downstream equipment against overload and short-circuit conditions. Its three-pole layout makes it particularly suitable for three-phase feeders supplying machinery, distribution panels and other high-current electrical loads.
Typical Applications
- Industrial low-voltage switchboards.
- Three-phase feeder protection.
- Commercial power-distribution panels.
- Motor control centres.
- Machinery and production equipment.
- Electrical distribution cabinets.
- OEM switchboard manufacturing.
- Infrastructure and utility distribution systems.
Technical Specifications
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| Current | 400 A | |
|---|---|---|
| Poles | 3-pole | |
| Device Type | Accessory | |
| Fuse Type | NH (DIN) | |
| Manufacturer | Mersen | |
| Series | BSL | |
| Model | M1055734 | |
| Catalogue reference | BL2V403K400 | |
| Product type | NH vertical fuse rail | |
| Rated current | 400 A | |
| Rated operational voltage | Up to 690 V AC | |
| Fuse-link size | NH size 2 | |
| Number of poles | 3 | |
| Busbar spacing | 185 mm | |
| Cable connection | V-terminal | |
| Mounting method | Direct busbar mounting | |
| Degree of protection | IP20 | |
| Applicable fuse standard | IEC/EN 60269-2 | |
| Application category | Low-voltage power distribution |
Frequently Asked Questions
What is the Mersen M1055734 used for?
The M1055734 is an NH vertical fuse rail used to provide fused protection for three-phase feeders and distribution circuits in compatible low-voltage switchboards.
What is the rated current of the M1055734?
The fuse rail has a rated operational current of 400 A.
Which fuse-links are compatible?
The M1055734 is designed for standard NH size 2 fuse-links selected to suit the electrical circuit and application.
Which busbar system does it fit?
The fuse rail is designed for direct installation onto a standard 185 mm busbar system.
Does the fuse rail include the NH fuse-links?
No. The M1055734 is the fuse-rail assembly only. Compatible NH size 2 fuse-links must normally be selected and ordered separately.
Trusted Industrial Fuse Protection
Mersen BSL NH fuse rails are used by panel builders, electrical contractors and industrial engineers to provide compact installation, dependable circuit protection and reliable integration with low-voltage busbar systems.
