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MERSEN FUSE 5500 CP ALJB 36.250 75 5500CPALJB36.25075
Mersen W078794 36AJB55V75 medium voltage cylindrical fuse-link rated at 75 A and 5.5 kV AC with a 36 x 250 mm body for public lighting and distribution system protection.
£109.47
Why Choose the Mersen W078794 Medium Voltage Cylindrical Fuse?
The Mersen W078794, also identified by the product reference 36AJB55V75, is a medium voltage cylindrical fuse-link engineered to provide dependable overcurrent and short-circuit protection for public lighting networks, transformers and industrial electrical distribution systems. Featuring a 75 A rated current, a 5.5 kV AC rated voltage and a 36 × 250 mm cylindrical body, it is designed for demanding medium voltage applications.
Manufactured by Mersen, the W078794 is identified by the manufacturer designation 5500 CP ALJB 36.250 75. Its current-limiting fuse element rapidly interrupts overload and short-circuit currents, helping minimise damage to transformers, switchgear, conductors and associated electrical equipment while improving system reliability.
Its robust cylindrical construction enables straightforward installation into compatible medium voltage fuse holders. Designed for long service life in demanding environments, the W078794 is well suited to utility infrastructure, industrial power distribution, railway systems and specialist installations where dependable circuit protection is essential.
Key Advantages
- Medium voltage cylindrical fuse for distribution and public lighting protection.
- 75 A rated current.
- 5.5 kV AC rated voltage.
- 36 × 250 mm standard cylindrical format.
- Current-limiting performance helps reduce equipment damage.
- Suitable for demanding industrial and utility installations.
- Manufactured by Mersen for dependable medium voltage protection.
Key Features
- Manufacturer: Mersen.
- Model: W078794.
- Product reference: 36AJB55V75.
- Manufacturer designation: 5500 CP ALJB 36.250 75.
- Medium voltage cylindrical fuse-link.
- 75 A nominal current rating.
- 5.5 kV AC nominal voltage.
- 36 × 250 mm cylindrical fuse body.
- Designed for installation in compatible medium voltage fuse holders.
Reliable Protection for Medium Voltage Networks
Medium voltage fuse-links disconnect electrical circuits rapidly when overloads or short-circuit faults occur. Their current-limiting characteristics help minimise thermal and mechanical stress on transformers, switchgear and distribution equipment, improving the safety and reliability of electrical systems.
The Mersen W078794 combines a 75 A current rating with a 5.5 kV AC operating voltage, making it particularly suitable for protecting public lighting infrastructure, industrial distribution equipment and transformer installations operating under demanding conditions.
Typical Applications
- Public lighting networks.
- Medium voltage distribution systems.
- Transformer protection.
- Industrial electrical installations.
- Utility infrastructure.
- Railway electrical equipment.
- Power distribution assemblies.
- OEM medium voltage equipment.
Technical Specifications
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| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | Cylindrical | |
| Current | 75 A | |
| Voltage | 5500 V | |
| Manufacturer | Mersen | |
| Brand | Mersen / Ferraz Shawmut | |
| Model | W078794 | |
| Product reference | 36AJB55V75 | |
| Manufacturer designation | 5500 CP ALJB 36.250 75 | |
| Product type | Medium voltage cylindrical fuse-link | |
| Fuse designation | ALJB | |
| Rated current | 75 A | |
| Rated voltage | 5.5 kV AC | |
| Fuse body size | 36 × 250 mm | |
| Body shape | Cylindrical | |
| Installation | Compatible medium voltage fuse holder | |
| Typical application | Public lighting and medium voltage distribution |
Frequently Asked Questions
What is the Mersen W078794 used for?
The Mersen W078794 is a medium voltage cylindrical fuse designed to protect public lighting systems, transformers and industrial electrical equipment against overloads and short-circuit faults.
What is the current rating of the W078794?
The fuse has a nominal current rating of 75 A.
What voltage is the Mersen W078794 rated for?
The W078794 has a rated operating voltage of 5.5 kV AC.
What are the dimensions of this fuse?
The fuse has a cylindrical body measuring 36 × 250 mm.
What is the product reference for the W078794?
The associated Mersen product reference is 36AJB55V75 with the manufacturer designation 5500 CP ALJB 36.250 75.
Can the Mersen W078794 be installed in any fuse holder?
No. It should only be installed in a compatible medium voltage fuse holder designed for its dimensions and appropriate voltage and current ratings.
Trusted Medium Voltage Protection
Mersen medium voltage fuse-links are trusted worldwide by utilities, electrical engineers and equipment manufacturers to provide dependable protection for transformers, switchgear and critical power distribution systems.
