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MERSEN FUSE BJU42V250PB BJU42V250PB
The BS88 gU Type 110×42 415VAC 250A BJU42V250PB fuse-link offers reliable circuit protection for low voltage electrical systems with a compact design and compliance to IEC standards.
£39.13
Why Choose the Mersen W1003923 Industrial Fuse Component?
The Mersen W1003923 is a specialist industrial fuse or fuse-system component intended for use in compatible electrical protection and power distribution equipment. Identified by the exact manufacturer reference W1003923, it is suitable for maintenance engineers, panel builders and electrical contractors seeking a correctly matched Mersen replacement component.
Accurate fuse selection is essential for maintaining circuit protection, equipment compatibility and electrical safety. Products with a similar physical appearance may have different current ratings, voltage ratings, utilisation categories, breaking capacities or connection arrangements. The complete Mersen reference should therefore be checked against the original component and the equipment manufacturer's documentation.
The Mersen W1003923 is suitable for planned maintenance, equipment refurbishment and spare-parts applications where this exact part number is specified. Its electrical ratings, dimensions and installation requirements should be confirmed using the applicable Mersen datasheet or product markings before ordering or fitting.
Key Advantages
- Genuine Mersen industrial electrical protection component.
- Clearly identified by manufacturer reference W1003923.
- Suitable for professional maintenance and replacement applications.
- Supports accurate component identification and procurement.
- Designed for use with compatible fuse and distribution equipment.
- Suitable for servicing, refurbishment and critical spares inventories.
Key Features
- Mersen industrial fuse-system product.
- Manufacturer part number: W1003923.
- Application-specific electrical protection component.
- Suitable for compatible industrial electrical equipment.
- Designed to support dependable circuit protection.
- Suitable for engineers, contractors and panel builders.
- Exact reference assists with replacement-part verification.
- Professional rating verification and installation recommended.
Accurate Component Selection for Reliable Protection
Industrial fuse products protect electrical installations by interrupting excessive current before cables, switchgear or connected equipment sustain serious damage. Selecting a component with the correct current rating, voltage rating, operating characteristic and fault-breaking capacity is essential for safe and effective protection.
Before installing the Mersen W1003923, compare the complete product reference and technical specifications with the existing component, approved bill of materials or equipment manual. Installation should only be completed after the circuit has been safely isolated and verified by a suitably qualified electrical professional.
Typical Applications
- Industrial electrical distribution equipment.
- Switchgear and control-panel maintenance.
- Fuse-system servicing and refurbishment.
- Machinery electrical protection systems.
- Replacement of worn or damaged fuse components.
- OEM and industrial spare-parts inventories.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Class | gG | |
|---|---|---|
| Voltage | 415 V | |
| Item number | W1003923 | |
| Catalogue No | BJU42V250PB | |
| Description | British Standard fuse-link IEC BS88 gU Type 110x42 415VAC 250A | |
| EAN/UPC Code | 3605340478310 | |
| Rated voltage AC IEC | 415 V | |
| Ampere Rating | 250 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | gG | |
| Fuse Size | 110x42 | |
| Mounting | Clip | |
| Clearing I2t At Rated Voltage | 270000 A²s | |
| Melting I2t | 60000 A²s | |
| AC Max I.R./Breaking Capacity | I1: 80 kA | |
| Connection/Terminal Material | Copper | |
| Connection/Terminal Type | Blade | |
| Product Diameter | 41.9 mm | |
| Product Length | 110.5 mm | |
| Product Height | 31 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 0.732 kg | |
| Sell Pack Width | 145 mm | |
| Sell Pack Length | 140 mm | |
| Sell Pack Height | 53 mm | |
| Product group | Low Voltage IEC Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.244 kg | |
| Power Dissipation at Rated Current Value | 20 W | |
| HS Code | 85361090 | |
| Country of Manufacture | India |
Frequently Asked Questions
What is the Mersen W1003923?
The Mersen W1003923 is an application-specific industrial fuse or fuse-system component identified by the manufacturer part number W1003923.
How can I confirm that the W1003923 is compatible?
Compare the complete part number and all electrical specifications with the original component, equipment manual, approved bill of materials or official Mersen documentation.
What current and voltage ratings does this product have?
The exact current and voltage ratings should be verified from the component markings or applicable Mersen datasheet before installation.
Can the W1003923 be replaced with a visually similar component?
No. A suitable replacement must match the required electrical ratings, operating characteristic, dimensions and connection arrangement, rather than physical appearance alone.
Who should install the Mersen W1003923?
Installation should be carried out by a suitably qualified electrical professional familiar with the equipment and the applicable isolation and safety procedures.
Trusted for Industrial Electrical Protection
Mersen electrical protection products are specified by engineers, equipment manufacturers and maintenance professionals to support reliable fault interruption and safe operation across industrial power systems.
