MERSEN FUSE H 1209P BCKUP 442-56/63 45DB120V63P-3

MERSEN FUSE H 1209P BCKUP 442-56/63 45DB120V63P-3

Mersen N1006101 Limitor-P high voltage DIN back-up fuse-link rated 12 kV AC and 63 A with a 31.5 kA breaking capacity and integrated 80 N striker for transformer protection.

SKU: N1006101Alt SKU: 45DB120V63P-3MPN: N1006101
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List Price £137.40 ex VAT
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Why Choose the Mersen N1006101 High Voltage Transformer Protection Fuse?

The Mersen N1006101 is a premium high voltage DIN back-up fuse-link engineered to provide dependable short-circuit protection for transformers installed within medium voltage electrical distribution systems. As part of the trusted Mersen Limitor®-P series, it delivers reliable current-limiting performance for substations, switchgear and industrial power networks.

Designed specifically for transformer protection, the N1006101 features pure silver fuse elements, silver-plated copper terminals and a durable ceramic body to ensure excellent electrical performance and a long operational life. The integrated 80 N striker provides fault indication or operation of compatible switchgear following fuse operation.

Rated at 12 kV AC with a 63 A current rating, the Mersen N1006101 offers a 31.5 kA breaking capacity. Its DIN construction and VDE T4 design make it suitable for transformer substations, industrial switchgear and medium voltage distribution systems requiring dependable protection.

Key Advantages

  • Designed specifically for medium voltage transformer protection.
  • 12 kV AC IEC rated voltage.
  • 63 A rated current.
  • Integrated 80 N striker for switchgear operation and fault indication.
  • 31.5 kA breaking capacity for dependable fault interruption.
  • Pure silver fuse elements provide reliable electrical performance.
  • Silver-plated copper terminals ensure excellent conductivity.
  • Manufactured in accordance with IEC 60282-1 and VDE T4 requirements.

Key Features

  • Mersen Limitor®-P high voltage DIN back-up fuse-link.
  • Catalogue number: 45DB120V63P-3.
  • Rated voltage: 12 kV AC.
  • Rated current: 63 A.
  • Fuse size: 63 mm diameter × 442 mm body length.
  • Integrated 80 N striker mechanism.
  • Clip mounting with cylindrical terminals.
  • Current-limiting back-up fuse for transformer protection.
  • Suitable for medium voltage switchgear.

Reliable Protection for Medium Voltage Transformers

High voltage back-up fuse-links rapidly interrupt severe short-circuit currents before excessive thermal or mechanical stress can damage transformer windings, switchgear and associated power distribution equipment. Their current-limiting performance helps improve system reliability while reducing equipment damage during electrical faults.

The Mersen N1006101 combines robust construction with dependable electrical characteristics, making it suitable for utility, industrial and OEM transformer protection applications where reliable medium voltage protection is essential.

Typical Applications

  • Medium voltage transformer protection.
  • Electrical substations.
  • Industrial switchgear.
  • Ring main units.
  • Utility power distribution systems.
  • Renewable energy substations.
  • OEM transformer equipment.
  • Commercial and industrial electrical infrastructure.

Technical Specifications

Voltage 120 V
Manufacturer Mersen
Series Limitor®-P
Model N1006101
Catalogue number 45DB120V63P-3
Product type High voltage DIN back-up fuse-link
Application Transformer protection
Rated voltage 12 kV AC IEC
Rated current 63 A
Current type AC
Fuse dimensions 63 mm diameter × 442 mm body length
Mounting Clip
Breaking capacity 31.5 kA
Minimum breaking current 252 A
Clearing I²t 42 kA²s
Power dissipation 78 W
Striker force 80 N
Terminal material Silver-plated copper
Body material Ceramic
Weight Approx. 2.3 kg
Standards IEC 60282-1, VDE T4
EAN 3605340483819
HS Code 85351000
Device Type Fuse link
Fuse Type High voltage
Current 63 A

Frequently Asked Questions

What is the Mersen N1006101 used for?

The Mersen N1006101 is a high voltage DIN back-up fuse-link designed to protect transformers against damaging short-circuit currents within medium voltage electrical systems.

What are the voltage and current ratings?

The fuse has a rated voltage of 12 kV AC and a rated current of 63 A.

Does this fuse include a striker?

Yes. It incorporates an integrated 80 N striker for fault indication and operation of compatible switchgear.

What is the breaking capacity?

The N1006101 provides a maximum AC breaking capacity of 31.5 kA.

Where is this fuse commonly installed?

It is commonly installed within transformer substations, industrial switchgear and medium voltage power distribution systems.

Trusted by Power Distribution Professionals Worldwide

Mersen Limitor® high voltage fuse-links are trusted worldwide by utilities, OEMs, switchgear manufacturers and industrial engineers for dependable transformer and medium voltage equipment protection.

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