Mersen P078581 20GB10V10P high-speed cylindrical fuse-link rated at 10 A and 1000 V AC with a 20 x 127 mm body and integrated striker for semiconductor protection.
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Why Choose the Mersen P078581 High-Speed Cylindrical Fuse?
The Mersen P078581, manufacturer reference 20GB10V10P, is a high-speed 10 A cylindrical fuse-link engineered for the protection of sensitive power electronic equipment and industrial semiconductor applications. Its ultra-fast operating characteristics rapidly interrupt fault currents, helping to minimise thermal and mechanical stress on valuable electrical components.
Manufactured by Mersen, this fuse features a 20 × 127 mm cylindrical body with ferrule end caps and an integrated striker, making it suitable for installation in compatible fuse clips and holders. Its compact design and dependable performance make it ideal for demanding industrial power conversion and electrical protection systems.
With a rated current of 10 A and a rated voltage of 1000 V AC, the P078581 provides reliable high-speed protection for semiconductor devices, converters, rectifiers, variable speed drives and other specialist electrical equipment requiring rapid fault interruption.
Fast Protection for Sensitive Electrical Equipment
High-speed fuse-links are specifically designed to clear electrical faults before damaging levels of energy reach semiconductor devices and power electronic assemblies. The Mersen P078581 helps improve equipment reliability by limiting fault energy and reducing the risk of costly component damage.
Its compact cylindrical design and integrated striker make it suitable for industrial control equipment, rectifiers, inverters, UPS systems and other power conversion applications requiring dependable, rapid circuit protection.
Typical Applications
Semiconductor protection.
Industrial power converters.
Variable speed drives.
Rectifiers and inverters.
UPS systems.
Industrial automation equipment.
Technical Specifications
Manufacturer
Mersen
Manufacturer reference
20GB10V10P
Part number
P078581
Product type
High-speed cylindrical fuse-link
Rated current
10 A
Rated voltage
1000 V AC
Fuse dimensions
20 × 127 mm
Operating characteristic
gLB
Body style
Cylindrical
Terminal type
Ferrule
Striker
Yes
Mounting method
Compatible fuse holder or fuse clips
Frequently Asked Questions
What is the Mersen P078581 used for?
The Mersen P078581 is a high-speed fuse-link designed to protect semiconductor devices and industrial power electronic equipment against overcurrents and short circuits.
What is the current rating of the P078581?
The fuse has a nominal current rating of 10 A.
What voltage is the P078581 rated for?
The Mersen P078581 is rated for operation at 1000 V AC.
What are the dimensions of the fuse?
The fuse features a cylindrical body measuring 20 × 127 mm.
Does the P078581 include a striker?
Yes. The fuse incorporates an integrated striker mechanism for use with compatible fuse systems.
Trusted by Electrical Professionals Worldwide
Mersen high-speed fuse-links are trusted by electrical engineers, panel builders and OEM manufacturers for dependable semiconductor protection and rapid fault interruption in demanding industrial applications.
Manufacturer
Mersen
Manufacturer reference
20GB10V10P
Part number
P078581
Product type
High-speed cylindrical fuse-link
Rated current
10 A
Rated voltage
1000 V AC
Fuse dimensions
20 × 127 mm
Operating characteristic
gLB
Body style
Cylindrical
Terminal type
Ferrule
Striker
Yes
Mounting method
Compatible fuse holder or fuse clips
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.
Priority sourcing and supply support
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Stock lines ready to ship
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Same day dispatches
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Customers supported
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...