Call Us Today
01706 242050
Trade Portal
MERSEN FUSE A 070 URD 30 KI 0315 A070URD30KI0315

MERSEN FUSE A 070 URD 30 KI 0315 A070URD30KI0315

Engineered for demanding industrial applications, this Protistor® fuse delivers rapid fault response and full compliance with both IEC 60269-4 and UL standards, ensuring robust protection for sensitive semiconductor devices. Its 315A rating and high interrupt capacity make it ideal for AC busbars and power conversion systems operating up to 690VAC IEC and 700VAC UL.

SKU: J300135Alt SKU: A070UD30KI315MPN: J300135
Price
List Price £126.17 ex VAT
Your Price (ex VAT)
£126.17
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) £126.17
Trade pricing is personalised to your account

Manufacturer Lead Time

Sold in packs of 3

£126.17

Why Choose the Mersen J300135 Industrial Circuit Protection Component?

The Mersen J300135 is a professional industrial circuit protection component intended for use in compatible electrical power distribution, control and equipment protection assemblies. Manufactured by Mersen, it is suitable for maintenance, replacement and OEM applications where accurate component identification and dependable electrical performance are essential.

Mersen specialises in fuses, fuse holders and associated circuit protection products for industrial machinery, switchgear, power electronics and energy infrastructure. The unique J300135 manufacturer part number helps engineers, panel builders and procurement professionals identify the required component when servicing compatible Mersen equipment.

Detailed public technical information for the J300135 is limited. Its precise product type, rated current, rated voltage, protection characteristic, dimensions and terminal arrangement should therefore be verified against the original component, equipment documentation or official Mersen technical data before purchase or installation.

Key Advantages

  • Genuine Mersen industrial circuit protection component.
  • Clearly identified by manufacturer part number J300135.
  • Suitable for maintenance, repair, replacement and OEM requirements.
  • Designed for use in compatible industrial electrical assemblies.
  • Supports dependable operation of power distribution and control equipment.
  • Manufactured by an established electrical protection specialist.

Key Features

  • Mersen J300135 electrical protection product.
  • Designed for professional industrial electrical applications.
  • Manufacturer-specific identification supports accurate replacement selection.
  • Suitable for compatible power distribution and protection equipment.
  • Professional-grade construction for demanding electrical environments.
  • Suitable for OEM, panel-building and maintenance applications.
  • Intended for use with correctly matched Mersen equipment.
  • Installation should be completed by qualified electrical personnel.

Dependable Support for Industrial Electrical Systems

Correctly specified circuit protection components help maintain the safety, availability and reliability of industrial electrical equipment. They form part of a coordinated protection system designed to isolate electrical faults, limit fault energy and reduce the risk of damage to connected machinery and power infrastructure.

The Mersen J300135 should only be installed where its electrical characteristics, operating performance, physical format and connection arrangement match the original equipment specification. Selection should be based on verified technical information rather than visual similarity or part-number sequence alone.

Typical Applications

  • Industrial electrical control panels.
  • Power distribution equipment.
  • Switchgear and protection assemblies.
  • Industrial machinery and automation systems.
  • Power conversion equipment.
  • OEM electrical assemblies.
  • Maintenance, repair and replacement projects.

Technical Specifications

Item number J300135
Catalogue No A070UD30KI315
Description Square Body High-Speed Fuse Protistor® Size 30 aR 690VAC IEC 700VAC UL 315A With Striker Slotted Blades short
EAN/UPC Code 3605340323801
Rated voltage AC UL 700 V
Rated voltage AC IEC 690 V
Ampere Rating 315 A
RoHS Compliant Yes
AC or DC AC
Speed/Characteristic aR
Fuse Size 30
Mounting Bolted
Clearing I2t At Rated Voltage 67 kA²s
Melting I2t 12 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 Slotted Blades
Product Width 40 mm
Product Length 129 mm
Product Height 48 mm
Sell Pack Quantity 3 EA
Sell Pack Weight 0.873 kg
Sell Pack Width 133 mm
Sell Pack Length 157 mm
Sell Pack Height 54 mm
Product group Semiconductor Protection Fuses
Body/Insulating Material Ceramic
Product Weight 0.291 kg
Power Dissipation at Rated Current Value 55 W
HS Code 85361090
Country of Manufacture France
Fuse Type Semiconductor
Fuse Class aR
Voltage 690 V

Frequently Asked Questions

What is the Mersen J300135 used for?

The Mersen J300135 is an industrial electrical circuit protection component intended for use in compatible power distribution, control or equipment protection assemblies.

Can the J300135 replace another Mersen component?

It should only replace a component with matching manufacturer identification, electrical ratings, operating characteristics, dimensions and terminal requirements. Compatibility must be verified before installation.

Which specifications should be checked before ordering?

Confirm the precise product type, rated current, rated voltage, protection characteristic, breaking capacity, dimensions, mounting arrangement and equipment compatibility.

Are complete specifications available for the J300135?

Detailed public specifications are limited. The original component label, equipment documentation or official Mersen technical data should be checked before ordering.

Who should install the Mersen J300135?

Installation or replacement should be completed by a qualified electrical professional following the equipment manufacturer's instructions and applicable electrical safety procedures.

Trusted Industrial Electrical Protection

Mersen electrical protection products are selected by engineers, panel builders and maintenance professionals to support safe and dependable operation across demanding industrial electrical applications.

● 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...