Call Us Today
01706 242050
Trade Portal
MERSEN FUSE H 1209UP BCKUP T VDE292-65/100 C1000272

MERSEN FUSE H 1209UP BCKUP T VDE292-65/100 C1000272

Mersen C1000272 Limitor-PTD high voltage DIN back-up fuse with Controlled Power Dissipation and thermal striker, rated 12 kV AC and 100 A for transformer protection.

SKU: C1000272Alt SKU: 45DB120V100PTDMPN: C1000272
Price
List Price £169.92 ex VAT
Your Price (ex VAT) Save 30%
£118.62 30% OFF
You save £51.30 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.

Sign up for a trade account Quick & easy setup
SUBTOTAL (EX VAT) £118.62
Trade pricing is personalised to your account

Manufacturer Lead Time

£118.62

Why Choose the Mersen C1000272 High Voltage DIN Back-up Fuse?

The Mersen C1000272 is a premium Limitor®-PTD high voltage DIN back-up fuse-link featuring Controlled Power Dissipation (CPD) and an integrated thermal striker, specifically engineered to provide reliable transformer protection within medium voltage electrical distribution systems. Manufactured in accordance with IEC 60282-1 and VDE 0670 T402, this fuse-link delivers dependable fault interruption whilst helping reduce thermal stress within modern switchgear.

Manufactured using pure silver fuse elements, silver-plated copper end caps and a durable ceramic body, the C1000272 delivers outstanding electrical performance, excellent current limiting characteristics and long service life. The integrated 80 N thermal striker makes it particularly suitable for air insulated and gas insulated switchgear, with compatibility recommended by manufacturers including Siemens and Ormazabal.

With a 12 kV AC voltage rating, 100 A current rating and 65 mm diameter × 292 mm length construction, the Mersen C1000272 is ideally suited for protecting transformers installed within substations, industrial facilities and utility distribution networks.

Key Advantages

  • Designed specifically for medium voltage transformer protection.
  • Controlled Power Dissipation (CPD) technology reduces thermal loading.
  • 12 kV AC rated voltage.
  • 100 A current rating.
  • Integrated 80 N thermal striker.
  • 63 kA breaking capacity.
  • Manufactured to IEC 60282-1 and VDE 0670 T402.
  • Recommended for compatible Siemens and Ormazabal switchgear.

Key Features

  • Manufacturer: Mersen.
  • Series: Limitor®-PTD.
  • Part number: C1000272.
  • Catalogue number: 45DB120V100PTD.
  • Rated voltage: 12 kV AC.
  • Rated current: 100 A.
  • Fuse dimensions: 65 mm diameter × 292 mm length.
  • Controlled Power Dissipation technology.
  • Integrated 80 N thermal striker.
  • High strength ceramic body with silver-plated copper terminals.

Reliable Protection for Modern Medium Voltage Networks

The Limitor®-PTD range has been developed to protect transformers against the thermal and dynamic effects of short-circuit currents whilst reducing heat generation during normal operation. Controlled Power Dissipation technology helps extend switchgear service life without compromising protection performance.

The C1000272 is ideally suited for installation in gas insulated and air insulated switchgear, industrial substations and OEM medium voltage equipment where dependable transformer protection is essential.

Typical Applications

  • Medium voltage transformers.
  • Gas insulated switchgear (GIS).
  • Air insulated switchgear.
  • Industrial electrical distribution.
  • Utility substations.
  • OEM medium voltage equipment.

Technical Specifications

Manufacturer Mersen
Series Limitor®-PTD
Model C1000272
Catalogue number 45DB120V100PTD
Product type High voltage DIN back-up fuse
Application Transformer protection
Rated voltage 12 kV AC
Rated current 100 A
Breaking capacity 63 kA
Minimum breaking current 500 A
Clearing I²t 140 kA²s
Cold resistance 8.1 mΩ
Power dissipation 152 W
Fuse size 65 mm × 292 mm
Body material Ceramic
Fuse element Pure silver
Terminal material Silver-plated copper
Thermal striker 80 N
Weight Approx. 2.2 kg
HS Code 85351000
Country of Manufacture Hungary
Device Type Fuse link
Fuse Type High voltage
Current 100 A
Voltage 12000 V

Frequently Asked Questions

What is the Mersen C1000272 used for?

The C1000272 is a high voltage DIN back-up fuse designed to protect transformers against high short-circuit currents in medium voltage electrical systems.

What are the electrical ratings?

This fuse is rated for 12 kV AC operation with a 100 A current rating.

What is Controlled Power Dissipation?

Controlled Power Dissipation technology reduces heat generation inside switchgear whilst maintaining excellent fault interruption capability.

Does this fuse include a thermal striker?

Yes. The fuse incorporates an integrated 80 N thermal striker for operation with compatible transformer switchgear.

Which standards does this fuse comply with?

The C1000272 complies with IEC 60282-1 and VDE 0670 T402 for high voltage DIN back-up fuse-links.

Trusted for Medium Voltage Protection

Mersen Limitor®-PTD fuse-links are trusted worldwide by utilities, switchgear manufacturers and industrial engineers for dependable transformer protection, reduced thermal losses and reliable medium voltage electrical distribution.

● 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...