SKU: V301778Alt SKU: 12,5URD73D11I0630MPN: V301778
MERSEN FUSE 12,5 URD 73 D11 I 0630 12,5URD73D11I0630

MERSEN FUSE 12,5 URD 73 D11 I 0630 12,5URD73D11I0630

Why Choose the MERSEN FUSE 12,5 URD 73 D11 I 0630 12,5URD73D11I0630? MERSEN FUSE 12,5 URD 73 D11 I 0630 12,5URD73D11I0630 delivers robust, standards-compliant performance for demanding electrical applications. This model provides reliable protection and ease of installation, with all key features engineered for maximum safety and efficiency. Key Takeaways – Product Name: MERSEN FUSE 12,5 URD 73 D11 I 0630 12,5URD73D11I0630 – Key Specs: See description below Frequently Asked Questions – What is the primary application? – Is this product certified? – What are the installation options? – What are the key benefits? – Where can I find technical data? Speed & Safety Benefits – Reliable Performance: Engineered for consistent results – Safe Operation: Built to meet modern standards – Quick Installation: Designed for installer convenience Key Features of MERSEN FUSE 12,5 URD 73 D11 I 0630 12,5URD73D11I0630 – See full description below – Engineered for reliability – Technical support available What is the primary application?+ See product description for detailed use cases. Is this product certified?+ Consult technical data or documentation for certifications. What are the installation options?+ Refer to the installation manual or contact our team for guidance. What are the key benefits?+ Engineered for performance, reliability, and ease of use. Where can I find technical data?+ Technical datasheets are available on request or on our website.

Price
List Price ex VAT
Your Price
On backorder Please contact us for a delivery time before you order
Get the best trade prices Trade exclusive

Create a trade account to unlock exclusive pricing, special offers and more.

Trade pricing is personalised to your account

Available on backorder

£325.26

Why Choose the Mersen V301778 High-Speed Semiconductor Fuse?

The Mersen V301778 is a premium high-speed semiconductor fuse developed to provide reliable protection for sensitive power electronic equipment operating in demanding industrial environments. Engineered for semiconductor protection, this fuse delivers rapid fault interruption to help minimise damage to costly components such as IGBTs, thyristors, diodes and other power semiconductors.

Designed for use in high-power electrical systems, the V301778 combines dependable performance with excellent current-limiting characteristics to reduce thermal and electrical stress during fault conditions. Its robust construction makes it suitable for OEM equipment, industrial drives and power conversion applications where maximum reliability is essential.

The Mersen V301778 is supplied as part of the trusted Protistor® semiconductor protection range and is intended for installation in compatible fuse assemblies. Users should always verify the electrical ratings and mounting arrangement against the official Mersen documentation before installation.

Key Advantages

  • High-speed semiconductor fuse for industrial power electronics.
  • Rapid short-circuit protection for sensitive semiconductor devices.
  • Current-limiting design helps reduce fault energy.
  • Suitable for demanding industrial environments.
  • Designed for OEM, maintenance and replacement applications.
  • Manufactured by Mersen, a recognised leader in electrical protection solutions.

Key Features

  • Mersen high-speed semiconductor fuse.
  • Manufacturer reference V301778.
  • Fast-acting protection for semiconductor equipment.
  • Suitable for protecting IGBTs, thyristors and power diodes.
  • Industrial-grade construction.
  • Designed for use in compatible fuse mounting systems.
  • Reliable current-limiting performance.
  • Suitable for industrial maintenance and OEM applications.

Technical Specifications

  • Manufacturer: Mersen
  • Model: V301778
  • Product type: High-speed semiconductor fuse
  • Primary function: Semiconductor short-circuit protection
  • Typical protected devices: IGBTs, thyristors, rectifiers and power diodes
  • Application: Industrial power electronic systems
  • Installation: Compatible fuse holder or equipment assembly
  • Current rating: Refer to the official Mersen datasheet
  • Voltage rating: Refer to the official Mersen datasheet
  • Operating characteristic: Refer to the official Mersen datasheet
  • Dimensions: Refer to the official Mersen datasheet
  • Terminal configuration: Refer to the official Mersen datasheet
  • Breaking capacity: Refer to the official Mersen datasheet

Reliable Protection for Industrial Power Electronics

High-speed semiconductor fuses are specifically engineered to interrupt fault currents before they can damage expensive power electronic components. Their extremely fast operating characteristics help reduce thermal stress, improve equipment reliability and minimise downtime across a wide range of industrial applications.

The Mersen V301778 is suitable for protecting semiconductor-based systems where dependable short-circuit protection is essential. Always ensure the fuse characteristics match the electrical requirements of the equipment being protected before installation.

Typical Applications

  • Variable frequency drives.
  • Industrial power converters.
  • UPS systems.
  • Renewable energy inverters.
  • Industrial motor drives.
  • Automation and production equipment.
  • OEM power electronic assemblies.

Frequently Asked Questions

What is the Mersen V301778 used for?

The Mersen V301778 is designed to protect sensitive semiconductor devices from damaging short-circuit currents in industrial power electronic equipment.

Which devices can this fuse protect?

It is commonly used to protect power semiconductors including IGBTs, thyristors, rectifiers and power diodes.

Is the V301778 suitable for general-purpose circuit protection?

No. This fuse is intended specifically for semiconductor protection and should only be used where its electrical characteristics match the application requirements.

How should a replacement fuse be selected?

Always verify the manufacturer reference together with the required current rating, voltage rating, operating characteristic, dimensions and mounting arrangement before replacement.

Where is the Mersen V301778 commonly installed?

The fuse is commonly installed in industrial drives, converters, UPS systems, renewable energy equipment and other semiconductor-based power conversion systems.

Trusted for Industrial Power Protection

Mersen high-speed semiconductor fuses are trusted worldwide by OEMs and industrial engineers for protecting critical power electronic equipment in demanding industrial environments.

● Service Agreements

Credit Accounts

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.

 Tick  Priority sourcing and supply support

 Tick  Flexible payment terms for qualifying organisations

 Tick  Support for engineering, maintenance, and operations

500 +

Stock lines ready to ship

1,000 +

Same day dispatches

3500 +

Customers supported

28 

Trusted Manfacturers

● frequently asked questions

Common questions about our products and support

 

At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.

What product ranges do you supply

We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products. 

Can you help specify the correct part?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

Do you have stock for urgent orders?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What are your delivery times and costs?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What about warranties, returns and faulty items?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

● latest blog

Discover  our latest insights and
expert advice

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

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.

LED Controls: Danfoss Drives Authorised Partner

LED Controls: Danfoss Drives Authorised Partner

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...

LED Controls: Your Complete Control Panel Solution

LED Controls: Your Complete Control Panel Solution

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...