Why Choose the Mersen B078822 Cylindrical Fuse Link?
The Mersen B078822 is a high-performance cylindrical gL/gG fuse link designed to provide reliable protection against overloads and short circuits in industrial low-voltage electrical systems. Manufactured by Mersen (formerly Ferraz Shawmut), this fuse is suitable for protecting cables, switchgear, control panels and general power distribution equipment.
Featuring a 20 A current rating and a 20 × 127 mm cylindrical format, the B078822 offers dependable current limiting performance to help minimise equipment damage during electrical faults. Its ceramic construction and precision fuse element provide consistent long-term operation in demanding industrial environments.
The product is identified by the manufacturer description 1051 CP GLB 20.127 20, making it suitable for use in compatible cylindrical fuse holders where reliable circuit protection is essential.
Key Advantages
Reliable gL/gG overload and short-circuit protection.
20 A rated current for industrial distribution circuits.
Current-limiting characteristics help protect connected equipment.
20 × 127 mm cylindrical fuse format.
Suitable for low-voltage power distribution and control circuits.
Robust ceramic construction for dependable service life.
Manufactured by Mersen, a global leader in electrical protection.
Key Features
Manufacturer: Mersen.
Manufacturer part number: B078822.
Product description: 1051 CP GLB 20.127 20.
20 A nominal current rating.
20 × 127 mm cylindrical body.
General-purpose gL/gG circuit protection.
Ceramic body with ferrule contacts.
Suitable for compatible cylindrical fuse holders.
Reliable Protection for Industrial Electrical Systems
The Mersen B078822 is designed to disconnect electrical faults quickly, protecting cables and connected equipment from excessive thermal and mechanical stress. Its current-limiting performance helps improve system reliability while reducing downtime caused by electrical faults.
Suitable for industrial control panels, switchgear, OEM equipment and electrical distribution systems, this fuse provides dependable protection when correctly matched to the installation's voltage, current and fault level requirements.
Typical Applications
Industrial power distribution.
Electrical switchboards.
Control panels.
OEM machinery.
Motor control equipment.
Commercial electrical installations.
General cable and conductor protection.
Technical Specifications
Manufacturer
Mersen
Former brand
Ferraz Shawmut
Manufacturer part number
B078822
Product description
1051 CP GLB 20.127 20
Product type
Cylindrical fuse link
Fuse category
gL/gG
Rated current
20 A
Fuse dimensions
20 × 127 mm
Construction
Ceramic body
Application
Low-voltage circuit protection
Mounting
Compatible cylindrical fuse holder
Approximate weight
1.36 kg
Frequently Asked Questions
What is the Mersen B078822 used for?
The B078822 is a cylindrical fuse link used to protect low-voltage electrical circuits against overloads and short circuits.
What is the current rating of the B078822?
The Mersen B078822 has a nominal current rating of 20 A.
What are the dimensions of this fuse?
The fuse uses a cylindrical format measuring approximately 20 × 127 mm.
What type of protection does this fuse provide?
It provides general-purpose gL/gG protection for cables, conductors and electrical distribution equipment.
Who manufactures the B078822?
The B078822 is manufactured by Mersen, formerly known as Ferraz Shawmut.
Trusted by Electrical Professionals Worldwide
Mersen cylindrical fuse links are trusted by panel builders, OEMs and electrical engineers worldwide for dependable overcurrent protection in industrial power distribution systems.
Manufacturer
Mersen
Former brand
Ferraz Shawmut
Manufacturer part number
B078822
Product description
1051 CP GLB 20.127 20
Product type
Cylindrical fuse link
Fuse category
gL/gG
Rated current
20 A
Fuse dimensions
20 × 127 mm
Construction
Ceramic body
Application
Low-voltage circuit protection
Mounting
Compatible cylindrical fuse holder
Approximate weight
1.36 kg
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
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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.
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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...