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MERSEN FUSE BJU42V025SA BJU42V025SA
The BJU42V025SA fuse-link delivers reliable circuit protection for industrial and commercial power applications up to 415VAC. It features a ceramic body, high breaking capacity of 80 kA, and is designed to BS88 and IEC standards.
£43.09
Why Choose the Mersen W1003900 BS88 Fuse-Link?
The Mersen W1003900 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 protecting high-current cables, switchgear, distribution boards and electrical infrastructure operating at up to 415 V AC.
This industrial fuse-link uses a robust ceramic body and durable blade terminals to deliver reliable performance in demanding commercial, municipal and industrial environments. Its high fault-interruption capability helps protect electrical equipment by safely disconnecting the circuit when excessive current occurs.
With a rated current of 250 A, the Mersen W1003900 is designed for higher-capacity feeder and distribution circuits. Its general-purpose full-range operating characteristic provides protection against both sustained overloads and high-level short-circuit faults.
Key Advantages
- High-quality British Standard IEC BS88 fuse-link.
- 250 A current rating for high-capacity distribution circuits.
- 415 V AC rated voltage for low voltage electrical systems.
- High breaking capacity for reliable fault-current interruption.
- Robust ceramic construction for demanding operating environments.
- Suitable for feeder pillars, switchgear and industrial distribution equipment.
Key Features
- Mersen BS88 feeder pillar fuse-link.
- Manufacturer part number W1003900.
- 250 A rated current.
- 415 V AC rated voltage.
- General-purpose full-range protection characteristic.
- Overload and short-circuit circuit protection.
- Durable ceramic fuse body.
- Blade terminals for installation in compatible fuse carriers.
Reliable Protection for High-Current Electrical Circuits
BS88 fuse-links protect electrical installations by disconnecting circuits when the current exceeds safe operating limits. During overload or short-circuit conditions, the internal fuse element interrupts the fault before excessive thermal or electrical energy can damage cables, switchgear and connected equipment.
The Mersen W1003900 provides dependable protection for high-current feeder circuits and low voltage distribution systems. Its industrial construction and standardised blade-terminal arrangement make it suitable for installations where effective fault isolation, equipment protection and long-term reliability are essential.
Typical Applications
- Street lighting and infrastructure feeder pillars.
- Industrial electrical distribution boards.
- Low voltage switchgear assemblies.
- High-current cable and feeder circuit protection.
- Commercial power distribution equipment.
- Municipal and industrial electrical installations.
Technical Specifications
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| Fuse Class | gG | |
|---|---|---|
| Voltage | 415 V | |
| Item number | W1003900 | |
| Catalogue No | BJU42V025SA | |
| Description | British Standard fuse-link IEC BS88 gU Type 130x36 415VAC 25A | |
| EAN/UPC Code | 3605340479218 | |
| Rated voltage AC IEC | 415 V | |
| Ampere Rating | 25 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | gG | |
| Fuse Size | 130x36 | |
| Mounting | Clip | |
| Clearing I2t At Rated Voltage | 1890 A²s | |
| Melting I2t | 250 A²s | |
| AC Max I.R./Breaking Capacity | I1: 80 kA | |
| Connection/Terminal Material | Copper | |
| Connection/Terminal Type | Blade | |
| Product Diameter | 36.1 mm | |
| Product Length | 130.5 mm | |
| Product Height | 41 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 0.843 kg | |
| Sell Pack Width | 180 mm | |
| Sell Pack Length | 140 mm | |
| Sell Pack Height | 65 mm | |
| Product group | Low Voltage IEC Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.281 kg | |
| Power Dissipation at Rated Current Value | 2.7 W |
Frequently Asked Questions
What is the Mersen W1003900 used for?
The Mersen W1003900 provides overload and short-circuit protection for high-current low voltage feeder circuits, switchgear and electrical distribution systems.
What is the current rating of the Mersen W1003900?
This British Standard IEC BS88 fuse-link has a rated current of 250 A.
What voltage is the W1003900 rated for?
The fuse-link is designed for low voltage electrical systems operating at up to 415 V AC.
Does the W1003900 protect against overloads and short circuits?
Yes. The Mersen W1003900 provides full-range protection against sustained overloads and high-level short-circuit faults.
Where is the Mersen W1003900 typically installed?
It is typically installed in compatible fuse carriers within feeder pillars, industrial distribution boards and low voltage switchgear assemblies.
Trusted for Industrial Circuit Protection
Mersen BS88 feeder pillar fuse-links are specified by electrical engineers, utilities and maintenance professionals to provide reliable cable protection, rapid fault isolation and dependable operation across low voltage distribution systems.
