MERSEN FUSE FUSIBLE FT7 36KV M2 TP360V6,3A325M2

MERSEN FUSE FUSIBLE FT7 36KV M2 TP360V6,3A325M2

Mersen K1005546 Limitor PD high voltage DIN back-up fuse rated at 36 kV AC and 80 A with an 80 N thermal striker for transformer protection.

SKU: K1005546MPN: K1005546
Price
List Price £356.41 ex VAT
Your Price (ex VAT) Save 20%
£285.13 20% OFF
You save £71.28 per unit
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.

SUBTOTAL (EX VAT) £285.13
Trade pricing is personalised to your account

Manufacturer Lead Time

£285.13

Why Choose the Mersen K1005546 High Voltage DIN Back-up Fuse?

The Mersen K1005546 is a premium DIN high voltage back-up fuse engineered to provide reliable short-circuit protection for medium voltage transformers operating within electrical distribution systems. Part of the trusted Mersen Limitor®-PD series, this fuse-link is designed for dependable performance in substations, industrial switchgear and utility power networks.

Manufactured in accordance with IEC 60282-1 and VDE 0670 T402, the K1005546 delivers excellent current-limiting performance whilst helping to minimise thermal and mechanical stress on transformers during fault conditions. Premium construction using pure silver fuse elements, silver-plated copper end caps and a ceramic body ensures dependable operation and long service life.

With a rated voltage of 36 kV AC, a 80 A current rating and an integrated 80 N thermal striker, the Mersen K1005546 is ideally suited for transformer protection in demanding medium voltage applications requiring high reliability and fast fault interruption.

Key Advantages

  • Designed specifically for medium voltage transformer protection.
  • 36 kV AC rated voltage for high voltage distribution systems.
  • 80 A rated current for compatible transformer installations.
  • Integrated 80 N thermal striker for compatible switchgear mechanisms.
  • Current-limiting design reduces fault energy and equipment damage.
  • Manufactured to IEC 60282-1 and VDE 0670 T402 standards.

Key Features

  • Mersen Limitor®-PD high voltage DIN back-up fuse.
  • 36 kV AC rated voltage.
  • 80 A rated current.
  • 88 mm diameter × 537 mm length.
  • Integrated 80 N thermal striker.
  • Ceramic body with pure silver fuse elements.
  • Designed for transformer protection.
  • RoHS compliant construction.

Reliable Protection for Medium Voltage Transformers

High voltage back-up fuse-links rapidly interrupt prospective short-circuit currents before they can damage transformers and associated switchgear. Their current-limiting characteristics reduce thermal and mechanical stress, improving equipment reliability whilst helping to minimise maintenance requirements.

The Mersen Limitor®-PD range has been trusted worldwide by utilities and industrial engineers for dependable transformer protection in demanding medium voltage electrical installations.

Typical Applications

  • Medium voltage transformer protection.
  • Electrical substations.
  • Medium voltage switchgear.
  • Industrial power distribution.
  • Utility electrical networks.
  • OEM medium voltage equipment.

Technical Specifications

Voltage 360 V
Manufacturer Mersen
Series Limitor®-PD
Model K1005546
Product type High voltage DIN back-up fuse
Application Transformer protection
Rated voltage 36 kV AC
Rated current 80 A
Frequency 50 / 60 Hz
Fuse dimensions Ø88 mm × 537 mm
Breaking capacity 31.5 kA
Thermal striker 80 N
Body material Ceramic
Fuse element material Pure silver
End cap material Silver-plated copper
Standards IEC 60282-1, VDE 0670 T402
RoHS compliant Yes
Device Type Fuse link
Fuse Type High voltage
Current 80 A

Frequently Asked Questions

What is the Mersen K1005546 used for?

The K1005546 is designed to protect medium voltage transformers against damaging short-circuit currents in electrical distribution systems.

What voltage is this fuse rated for?

The fuse has a rated operating voltage of 36 kV AC.

What is the current rating?

The Mersen K1005546 has a continuous current rating of 80 A.

Does the K1005546 include a thermal striker?

Yes. It incorporates an integrated 80 N thermal striker for operation with compatible switchgear mechanisms.

Which standards does this fuse comply with?

The fuse is manufactured in accordance with IEC 60282-1 and VDE 0670 T402 for high voltage transformer protection.

Trusted by Power Distribution Professionals

Mersen Limitor® high voltage fuse-links are trusted worldwide by utilities, transformer manufacturers and electrical engineers for dependable current-limiting protection and reliable operation in medium voltage distribution 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…

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...