Call Us Today
01706 242050
Trade Portal
MERSEN FUSE MS 7V 1-5 MS7V1-5

MERSEN FUSE MS 7V 1-5 MS7V1-5

Why Choose the MERSEN FUSE MS 7V 1-5 MS7V1-5?

SKU: J310002Alt SKU: MS7V1-5MPN: J310002
Price
List Price £24.40 ex VAT
Your Price (ex VAT)
£24.40
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) £24.40
Trade pricing is personalised to your account

Manufacturer Lead Time

Sold in packs of 3

£24.40

Why Choose the Mersen J310002 MS7V1-5 Fuse Microswitch?

The Mersen J310002 (MS7V1-5) is a high-quality fuse microswitch accessory designed for use with Mersen Protistor® square body semiconductor fuses in sizes 70 to 73. It provides reliable remote indication of fuse operation, allowing maintenance teams and control systems to detect a blown fuse quickly and improve equipment availability.

Developed for industrial power distribution and semiconductor protection systems, the MS7V1-5 integrates directly with compatible Protistor® fuse links using the built-in striker mechanism. Its robust construction and dependable switching performance make it ideal for industrial automation, motor drives, UPS systems and power conversion equipment.

Rated for 1500 V AC insulation and 10 A switching current, the J310002 provides a standard NO-NC contact arrangement for signalling fuse status to PLCs, alarms and monitoring systems.

Key Advantages

  • Provides reliable remote indication of fuse operation.
  • Designed specifically for Mersen Protistor® fuse links.
  • Standard NO-NC contact configuration.
  • Compatible with square body fuse sizes 70, 71, 72 and 73.
  • Quick installation using the fuse striker mechanism.
  • Helps reduce maintenance time and improve system availability.

Key Features

  • Mersen MS7V1-5 fuse microswitch.
  • Reference number J310002.
  • For Protistor® fuse sizes 70 to 73.
  • Standard normally open / normally closed (NO-NC) contacts.
  • 1500 V AC rated insulation voltage.
  • 10 A rated current.
  • Designed for striker-operated fuse indication.
  • Compact industrial construction.
  • Approximate weight: 45 g.

Reliable Remote Fuse Status Monitoring

Fuse microswitches provide immediate electrical indication when a compatible fuse operates. By sending a signal to a PLC, alarm system or supervisory controller, maintenance personnel can quickly identify blown fuses and restore equipment with minimal downtime.

The Mersen MS7V1-5 is engineered specifically for Protistor® square body semiconductor fuses, ensuring dependable operation in demanding industrial environments where reliable fault indication is essential.

Typical Applications

  • Variable speed drives.
  • Power converters.
  • Industrial UPS systems.
  • Motor control centres.
  • Renewable energy converters.
  • Industrial automation systems.
  • Semiconductor protection panels.

Technical Specifications

Manufacturer Mersen
Series Protistor® Accessories
Model MS7V1-5
Part number J310002
Product type Fuse microswitch
Compatible fuse sizes 70, 71, 72 and 73
Contact configuration Standard NO-NC
Rated insulation voltage 1500 V AC
Rated current 10 A
Operating method Fuse striker operated
Weight Approximately 45 g
Device Type Accessory
Current 10 A

Frequently Asked Questions

What is the Mersen J310002 used for?

It provides remote electrical indication when a compatible Protistor® fuse has operated.

Which fuse sizes is it compatible with?

The MS7V1-5 is designed for Mersen Protistor® square body fuse sizes 70, 71, 72 and 73.

What contact arrangement does it use?

The microswitch provides a standard normally open and normally closed (NO-NC) contact configuration.

How is the microswitch activated?

It is mechanically operated by the striker mechanism built into compatible Protistor® semiconductor fuses.

Where is this accessory typically installed?

It is commonly fitted to semiconductor fuse installations in industrial drives, converters, UPS systems and automation equipment requiring remote fuse status indication.

Trusted by Industrial Engineers Worldwide

Mersen Protistor® fuse accessories are widely used by OEMs and maintenance engineers to provide dependable fuse monitoring and improve reliability across industrial power systems.

● 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...