Call Us Today
01706 242050
Trade Portal
MERSEN FUSE 6,9 URD 31 TT F 0700 6,9URD31TTF0700

MERSEN FUSE 6,9 URD 31 TT F 0700 6,9URD31TTF0700

High-speed fuse designed for semiconductor protection with aR characteristic, rated 700A at 690VAC IEC and 700VAC UL, featuring a ceramic square body and integrated striker indication system.

SKU: X300009Alt SKU: PC31UD69V700TFMPN: X300009
Price
List Price £182.22 ex VAT
Your Price (ex VAT)
£182.22
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) £182.22
Trade pricing is personalised to your account

Manufacturer Lead Time

Sold in packs of 3

£182.22

Why Choose the Mersen X300009 Industrial Electrical Component?

The Mersen X300009 is a genuine Mersen industrial electrical component identified by the manufacturer reference X300009. It is intended for maintenance, repair or replacement within compatible electrical equipment, machinery and power distribution assemblies.

Ordering industrial components by their exact manufacturer reference helps engineers, maintenance professionals and purchasing teams avoid identification errors. The X300009 reference can be compared with an existing component, equipment manual, technical drawing or approved bill of materials before purchase.

Detailed public specifications for the Mersen X300009 could not be reliably verified. Its precise product type, electrical ratings, dimensions, connection arrangement and equipment compatibility should therefore be confirmed using the original component label, authorised Mersen documentation or information supplied by the original equipment manufacturer.

Key Advantages

  • Genuine Mersen industrial electrical component.
  • Distinct X300009 manufacturer reference supports accurate identification.
  • Suitable for maintenance, repair and replacement requirements.
  • Helps minimise the risk of ordering an incorrectly matched component.
  • Supports organised stock control and preventative maintenance.
  • Suitable for procurement by engineers, panel builders and maintenance teams.

Key Features

  • Mersen manufacturer reference X300009.
  • Intended for use within compatible industrial electrical equipment.
  • Suitable for planned maintenance and operational replacement.
  • Manufacturer-specific identification supports reliable procurement.
  • Can be recorded within equipment inventories and bills of materials.
  • Supports industrial equipment repair and continued operation.
  • Intended for installation by suitably qualified personnel.
  • Full technical compatibility must be verified before installation.

Reliable Component Selection for Industrial Equipment

Industrial electrical systems depend on correctly specified components for safe and dependable operation. Components that appear physically similar may have different current ratings, voltage ratings, connection arrangements or operating characteristics, making exact manufacturer-reference identification essential.

The Mersen X300009 reference allows maintenance professionals to compare the required component with service records, equipment documentation and the original installation. Before replacement work begins, the equipment should be safely isolated and all relevant specifications should be checked in accordance with the manufacturer’s instructions, site procedures and applicable electrical regulations.

Typical Applications

  • Industrial electrical equipment maintenance.
  • Control panel and switchboard servicing.
  • Replacement of an existing Mersen X300009 component.
  • Factory automation equipment repairs.
  • Electrical power distribution system maintenance.
  • OEM machinery and specialist industrial assemblies.

Technical Specifications

Item number X300009
Catalogue No PC31UD69V700TF
Description Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 700A With Striker Flush ends metric threads
EAN/UPC Code 3605340322330
Rated voltage AC UL 700 V
Rated voltage AC IEC 690 V
Ampere Rating 700 A
RoHS Compliant Yes
AC or DC AC
Speed/Characteristic aR
Fuse Size 31
Mounting Bolted
Clearing I2t At Rated Voltage 540000 A²s
Melting I2t 95000 A²s
AC Max I.R./Breaking Capacity I1: 200 kA
Indication System Yes
Indication System Type Striker
Connection/Terminal Material Silver-Plated Brass
Connection/Terminal Type Flush ends
Product Width 51 mm
Product Length 50.6 mm
Product Height 56.5 mm
Sell Pack Quantity 3 EA
Sell Pack Weight 1.1478 kg
Sell Pack Width 85 mm
Sell Pack Length 168 mm
Sell Pack Height 65 mm
Product group Semiconductor Protection Fuses
Body/Insulating Material Ceramic
Product Weight 0.3826 kg
Power Dissipation at Rated Current Value 85 W
HS Code 85361090
Country of Manufacture France
Fuse Type Semiconductor
Fuse Class aR
Voltage 690 V

Frequently Asked Questions

What is the Mersen X300009 used for?

The Mersen X300009 is an industrial electrical component intended for use within compatible equipment or assemblies. Its exact function should be confirmed using the original component or authorised equipment documentation.

How can I confirm that the X300009 is the correct replacement?

Compare the X300009 reference with the existing component, equipment manual, technical drawing or approved bill of materials before ordering.

What are the electrical ratings of the Mersen X300009?

The rated current, voltage and operating characteristics should be verified using the product label, authorised Mersen documentation or information supplied by the original equipment manufacturer.

Can an alternative component replace the Mersen X300009?

An alternative should only be installed when its electrical, mechanical and safety characteristics have been confirmed as fully compatible by a qualified engineer or the equipment manufacturer.

Who should install the Mersen X300009?

The component should be installed by a suitably qualified electrical professional following the equipment instructions, site isolation procedures and applicable safety regulations.

Trusted Industrial Electrical Expertise

Mersen products support industrial electrical applications where accurate component identification, dependable maintenance and responsible replacement-part selection are essential.

● 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...