Why Choose the Mersen Y1023429 BSL NH Fuse Rail?
The Mersen Y1023429, catalogue number BL1V403K000, is a robust NH vertical fuse rail designed for reliable low-voltage circuit protection in industrial power distribution systems. As part of the Mersen BSL NH fuse rail series, it provides a secure and efficient method of installing NH1 fuse links directly onto 185 mm busbar systems.
This three-pole fuse rail is engineered for feeder pillars, cable distribution cabinets, switchboards and low-voltage distribution assemblies. Its modular construction supports fast installation and straightforward maintenance, while the touch-protected IP20 design helps improve operator safety during installation and servicing.
With a rated current of 250 A and an operating voltage of up to 690 V AC, the Mersen Y1023429 is suitable for demanding commercial and industrial distribution applications. The integrated V-terminal accepts conductors from 35 to 240 mm², providing a dependable cable connection for high-current electrical systems.
Key Advantages
- Reliable NH1 vertical fuse rail for industrial circuit protection.
- 250 A rated current for high-capacity distribution applications.
- 690 V AC rated voltage suitable for low-voltage industrial networks.
- Direct installation onto 185 mm busbar systems.
- Touch-protected IP20 construction improves installation and maintenance safety.
- V-terminal cable connection accommodates conductors from 35 to 240 mm².
Key Features
- Mersen BSL NH fuse rail series.
- NH1 fuse size.
- 250 A maximum fuse rating.
- 690 V AC IEC rated voltage.
- Three-pole configuration.
- Designed for 185 mm busbar mounting.
- V-terminal connection for 35–240 mm² cables.
- Clip-in fuse installation method.
- Touch-protected IP20 design.
- RoHS-compliant construction.
Reliable Circuit Protection for Power Distribution
NH fuse rails provide a secure mounting and connection platform for high-current fuse links in industrial electrical distribution systems. When a fault or excessive current occurs, the installed NH fuse link interrupts the circuit to protect cables, equipment and downstream electrical components from damage.
The Mersen BSL system is designed for direct mounting onto standard 185 mm busbars in a three-pole arrangement. Its modular design, touch protection and high-current terminal capacity make it suitable for building compact, reliable and serviceable distribution assemblies.
Typical Applications
- Low-voltage power distribution units.
- Industrial switchboards and control panels.
- Feeder pillars and outdoor distribution cabinets.
- Cable distribution cabinets.
- Commercial and industrial electrical installations.
- Machine and production-line power distribution.
- Utility and infrastructure distribution systems.
