Call Us Today
01706 242050
Trade Portal
MERSEN FUSE 6,9 URD 30 E F 0125 6,9URD30EF0125

MERSEN FUSE 6,9 URD 30 E F 0125 6,9URD30EF0125

The PC30UD69V125EF delivers reliable protection for power conversion and industrial equipment, with rapid response to fault conditions at operational voltages up to 690VAC (IEC) and 700VAC (UL). Its aR characteristic is ideal for safeguarding semiconductor devices, minimising risk of damage from overloads and short circuits.

SKU: L300091Alt SKU: PC30UD69V125EFMPN: L300091
Price
List Price £101.41 ex VAT
Your Price (ex VAT)
£101.41
Manufacturer Lead Time 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.

Sign up for a trade account Quick & easy setup
SUBTOTAL (EX VAT) £101.41
Trade pricing is personalised to your account

Manufacturer Lead Time

Sold in packs of 3

£101.41

Why Choose the Mersen L300091 Industrial Electrical Component?

The Mersen L300091 is a genuine Mersen industrial electrical component identified by the precise manufacturer reference L300091. It is intended for use in compatible electrical equipment and provides a practical solution for maintenance engineers, panel builders and original equipment manufacturers seeking an accurately specified replacement component.

Selecting electrical components by their exact manufacturer part number helps maintain equipment compatibility and reduces the risk of ordering an unsuitable replacement. The Mersen L300091 is therefore suitable for planned maintenance, breakdown repairs, equipment refurbishment and OEM applications where reliable component identification is essential.

Before ordering or installation, the L300091 should be checked against the existing component, equipment documentation and applicable Mersen technical information. Electrical ratings, physical dimensions, connection arrangements and installation requirements must be verified by a suitably qualified professional.

Key Advantages

  • Genuine Mersen industrial electrical component.
  • Identified by the exact L300091 manufacturer part number.
  • Suitable for maintenance, repair and replacement requirements.
  • Supports accurate procurement for compatible electrical equipment.
  • Applicable to industrial, commercial and OEM environments.
  • Suitable for engineers, panel builders and maintenance professionals.

Key Features

  • Mersen branded electrical component.
  • Manufacturer reference: L300091.
  • Designed for use with compatible electrical equipment.
  • Suitable for replacing a component carrying the same manufacturer reference.
  • Clear part identification assists with maintenance and stock management.
  • Applicable to equipment servicing, refurbishment and OEM projects.
  • Intended for professional industrial electrical applications.
  • Designed for selection and installation by qualified personnel.

Accurate Component Selection for Industrial Maintenance

Correctly specified electrical components are essential for maintaining reliable equipment operation and reducing unnecessary downtime. Matching the manufacturer and part number allows maintenance teams to identify the required component accurately and helps prevent the installation of an unsuitable alternative.

The Mersen L300091 can support preventative maintenance, urgent repairs and equipment refurbishment. Before installation, the electrical supply must be safely isolated and the component’s ratings, dimensions, terminals and equipment compatibility must be confirmed in accordance with applicable electrical safety procedures.

Typical Applications

  • Industrial electrical control panels.
  • Power distribution and control equipment.
  • Manufacturing and processing machinery.
  • Commercial electrical installations.
  • OEM equipment assembly and servicing.
  • Maintenance, repair and refurbishment projects.

Technical Specifications

Item number L300091
Catalogue No PC30UD69V125EF
Description Square Body High-Speed Fuse Protistor® Size 30 aR 690VAC IEC 700VAC UL 125A With Striker Open Slot Blades
EAN/UPC Code 3605340323368
Rated voltage AC UL 700 V
Rated voltage AC IEC 690 V
Ampere Rating 125 A
RoHS Compliant Yes
AC or DC AC
Speed/Characteristic aR
Fuse Size 30
Mounting Bolted
Clearing I2t At Rated Voltage 4.9 kA²s
Melting I2t 0.85 kA²s
AC Max I.R./Breaking Capacity I1: 200 kA
Indication System Yes
Indication System Type Striker
Connection/Terminal Material Silver-Plated Copper
Connection/Terminal Type Open Slot Blades
Product Width 40 mm
Product Length 100 mm
Product Height 48 mm
Sell Pack Quantity 3 EA
Sell Pack Weight 0.7959 kg
Sell Pack Width 140 mm
Sell Pack Length 143 mm
Sell Pack Height 65 mm
Product group Semiconductor Protection Fuses
Body/Insulating Material Ceramic
Product Weight 0.2653 kg
Power Dissipation at Rated Current Value 30 W
HS Code 85361090
Country of Manufacture France
Fuse Type Semiconductor
Fuse Class aR
Voltage 690 V

Frequently Asked Questions

What is the Mersen L300091?

The Mersen L300091 is an industrial electrical component identified by the exact manufacturer part number L300091 for use in compatible electrical equipment.

How can I confirm that the Mersen L300091 is compatible?

Compare the manufacturer reference, electrical ratings, dimensions and connection requirements with the existing component and the relevant equipment documentation before ordering.

Can the L300091 be used as a replacement component?

It may be used as a replacement when the equipment specification requires Mersen part L300091. Complete compatibility should be verified before installation.

Who should install the Mersen L300091?

The component should be selected and installed by a suitably qualified electrical engineer or technician following applicable safety procedures and regulations.

Where is the Mersen L300091 typically installed?

It is intended for compatible industrial and commercial electrical equipment, including control panels, machinery and power distribution assemblies.

Trusted Electrical Expertise from Mersen

Mersen electrical components are selected by engineers, panel builders, equipment manufacturers and maintenance teams for professional applications where accurate component identification and dependable electrical performance are important.

● 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.

 Priority sourcing and supply support

 Flexible payment terms for qualifying organisations

 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…

by | Aug 11, 2026 |

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

by | Jan 17, 2026 |

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

by | Jan 17, 2026 |

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...