Why Choose the Mersen Z1003903 BS88 Fuse-Link?
The Mersen Z1003903 is a high-performance British Standard IEC BS88 industrial fuse-link designed to provide dependable overload and short-circuit protection for low voltage electrical distribution systems. Part of Mersen’s feeder pillar fuse range, it is suitable for street lighting networks, switchgear, distribution boards and industrial power circuits operating at up to 415 V AC.
Also identified by catalogue number BJU42V050SA, this fuse-link features a robust ceramic body and blade terminals with a 92 mm fixing centre. Its durable construction supports reliable performance in demanding commercial, municipal and industrial electrical installations.
With a rated current of 50 A and a general-purpose full-range operating characteristic, the Mersen Z1003903 protects cables and connected equipment against sustained overloads and short-circuit faults. Its 80 kA breaking capacity enables safe interruption of substantial prospective fault currents.
Key Advantages
- Manufactured as a British Standard IEC BS88 fuse-link.
- 50 A current rating for low voltage feeder circuits.
- 415 V AC rated voltage.
- 80 kA breaking capacity for dependable fault interruption.
- 92 mm fixing centre for compatible fuse carriers.
- Suitable for feeder pillars, switchgear and distribution equipment.
Key Features
- Mersen BS88 feeder pillar fuse-link.
- Manufacturer part number: Z1003903.
- Catalogue number: BJU42V050SA.
- 50 A rated current.
- 415 V AC rated voltage.
- General-purpose full-range protection characteristic.
- 80 kA rated breaking capacity.
- Ceramic body with blade terminals.
Reliable Protection for Low Voltage Distribution Circuits
BS88 fuse-links protect electrical installations by disconnecting circuits when current exceeds safe operating levels. During an overload or short-circuit condition, the fuse element interrupts the fault before excessive heat or electrical energy can damage cables, switchgear or connected equipment.
The Mersen Z1003903 provides dependable full-range protection for feeder and distribution circuits. Its ceramic construction, high breaking capacity and standardised blade-terminal arrangement make it suitable for installations where reliable fault isolation and long-term electrical safety are essential.
Typical Applications
- Street lighting feeder pillars.
- Industrial electrical distribution boards.
- Low voltage switchgear assemblies.
- Cable and feeder circuit protection.
- Commercial power distribution systems.
- Municipal and infrastructure electrical installations.
