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MERSEN FUSE 559P CP GLJB 36.250 20 E078802
Mersen E078802 medium-voltage cylindrical fuse-link with 36 x 250 mm format, 20 A rating and current-limiting protection for transformer and switchgear applications.
£161.32
Why Choose the Mersen E078802 Medium-Voltage Fuse?
The Mersen E078802, identified by the product designation 559P CP GLJB 36.250 20, is a high-performance medium-voltage cylindrical fuse-link engineered to provide dependable protection for transformers, switchgear and medium-voltage distribution equipment. Rated at 20 A, it delivers rapid current-limiting protection for demanding industrial and utility applications.
Manufactured by Mersen, the E078802 is designed to interrupt fault currents before they can damage valuable electrical equipment. Its current-limiting performance helps minimise thermal and mechanical stresses while improving system reliability and reducing maintenance requirements.
The fuse features a robust 36 × 250 mm cylindrical construction suitable for installation in compatible medium-voltage fuse carriers and switch-fuse assemblies. It is ideal for transformer protection, industrial power distribution and specialist medium-voltage protection systems requiring reliable low-current fault interruption.
Key Advantages
- 20 A medium-voltage fuse-link for specialised protection circuits.
- Current-limiting operation reduces damaging fault energy.
- Suitable for transformer and switchgear protection.
- Robust 36 × 250 mm cylindrical construction.
- Reliable protection for industrial and utility power systems.
- Manufactured by Mersen for demanding electrical applications.
Key Features
- Mersen medium-voltage cylindrical fuse-link.
- Manufacturer Part Number: E078802.
- Product designation: 559P CP GLJB 36.250 20.
- Rated current: 20 A.
- Fuse characteristic: GLJB.
- Nominal dimensions: 36 × 250 mm.
- Current-limiting short-circuit protection.
- Suitable for compatible medium-voltage fuse supports.
Reliable Protection for Medium-Voltage Equipment
Medium-voltage fuse-links are designed to interrupt fault currents before excessive thermal or mechanical damage can occur. The Mersen E078802 rapidly limits fault energy, helping protect transformers, switchgear and associated electrical equipment while maintaining dependable operation in demanding power distribution systems.
Correct fuse selection should always consider system voltage, operating current, prospective short-circuit current, equipment characteristics and compatibility with the associated fuse carrier to ensure optimum protection performance.
Typical Applications
- Distribution transformer protection.
- Medium-voltage switchgear.
- Industrial substations.
- Utility power distribution systems.
- OEM medium-voltage equipment.
- Infrastructure electrical installations.
Technical Specifications
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| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | Cylindrical | |
| Current | 20 A | |
| Manufacturer | Mersen | |
| Model | E078802 | |
| Product designation | 559P CP GLJB 36.250 20 | |
| Product type | Medium-voltage cylindrical fuse-link | |
| Rated current | 20 A | |
| Fuse characteristic | GLJB | |
| Nominal fuse diameter | 36 mm | |
| Nominal fuse length | 250 mm | |
| Nominal fuse size | 36 × 250 mm | |
| Construction | Ceramic cylindrical fuse-link | |
| Protection function | Current-limiting short-circuit protection | |
| Typical application | Medium-voltage transformer and switchgear protection |
Frequently Asked Questions
What is the Mersen E078802 used for?
The Mersen E078802 is a medium-voltage fuse-link designed to protect transformers, switchgear and electrical distribution equipment against damaging short-circuit currents.
What is the rated current of the E078802?
The fuse has a rated current of 20 A.
What are the dimensions of the fuse?
The Mersen E078802 has a nominal cylindrical size of 36 × 250 mm.
What is the product designation?
The product designation is 559P CP GLJB 36.250 20.
Where is the E078802 typically installed?
It is typically installed in compatible medium-voltage fuse holders within transformer protection systems, switchgear and industrial electrical distribution equipment.
Trusted for Medium-Voltage Protection
Mersen medium-voltage fuse-links are trusted worldwide by utilities, OEM manufacturers and electrical engineers to provide dependable current-limiting protection for transformers, switchgear and critical electrical distribution systems.
