The Mersen L076807, also identified as 12000 CP GLC 20.254 0,63, is a specialist high-voltage cylindrical fuse-link designed to provide dependable overcurrent and short-circuit protection for medium and high-voltage electrical installations. Rated at 0.63 A with a 12 kV AC voltage designation, it is intended for protecting low-current circuits in industrial and utility applications.
Manufactured by Mersen, this fuse-link delivers fast fault interruption and current-limiting performance to minimise damage to transformers, switchgear, cables and other critical electrical equipment. Its precision-engineered construction helps improve system reliability while reducing downtime following electrical faults.
The fuse features a compact cylindrical body measuring approximately 20 × 254 mm, making it suitable for installation within compatible high-voltage fuse holders and protection assemblies. Correct fuse selection and coordination are essential to ensure optimum protection and safe operation.
Key Advantages
Reliable high-voltage overcurrent and short-circuit protection.
0.63 A rated current for sensitive protection applications.
12 kV AC voltage designation for compatible high-voltage systems.
Current-limiting construction helps reduce fault energy.
Compact cylindrical design for compatible fuse holders.
Manufactured by Mersen for dependable industrial performance.
Suitable for compatible high-voltage fuse carriers.
Designed for industrial and utility electrical protection.
Reliable High-Voltage Circuit Protection
High-voltage fuse-links provide rapid interruption of excessive fault currents before significant thermal or mechanical damage can occur. Their current-limiting characteristics reduce the peak fault current and help protect valuable electrical assets throughout the installation.
The Mersen L076807 should be selected according to the system voltage, operating current, fault level and equipment requirements. Installation should only be carried out by suitably qualified personnel using compatible high-voltage fuse holders.
Typical Applications
High-voltage switchgear.
Industrial electrical distribution systems.
Transformer protection.
Utility infrastructure.
Electrical protection panels.
Replacement fuse-links for compatible Mersen installations.
Technical Specifications
Manufacturer
Mersen
Product reference
L076807
Manufacturer description
12000 CP GLC 20.254 0,63
Product type
High-voltage cylindrical fuse-link
Rated current
0.63 A
Voltage designation
12 kV AC
Fuse dimensions
Approx. 20 × 254 mm
Body style
Cylindrical
Operating characteristic
Current limiting
Application
High-voltage circuit protection
Installation
Compatible fuse holder assemblies
Packed quantity
1
Frequently Asked Questions
What is the Mersen L076807 used for?
The Mersen L076807 provides high-voltage overcurrent and short-circuit protection for compatible industrial and utility electrical systems.
What is the current rating of the L076807?
This fuse-link has a nominal current rating of 0.63 A.
What voltage is this fuse designed for?
The Mersen L076807 has a voltage designation of 12 kV AC and should only be installed within appropriately rated equipment.
What are the dimensions of the fuse?
The fuse has an approximate cylindrical body measuring 20 mm in diameter and 254 mm in length.
How should compatibility be verified?
Compatibility should always be confirmed against the electrical specifications, fuse holder dimensions and protection requirements of the installation before fitting the fuse.
Trusted by Electrical Engineers Worldwide
Mersen high-voltage fuse-links are specified across industrial and utility installations where dependable fault interruption, effective current limitation and long-term electrical protection are essential.
Manufacturer
Mersen
Product reference
L076807
Manufacturer description
12000 CP GLC 20.254 0,63
Product type
High-voltage cylindrical fuse-link
Rated current
0.63 A
Voltage designation
12 kV AC
Fuse dimensions
Approx. 20 × 254 mm
Body style
Cylindrical
Operating characteristic
Current limiting
Application
High-voltage circuit protection
Installation
Compatible fuse holder assemblies
Packed quantity
1
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...