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MERSEN FUSE H 2409P GEN PURPOSE 442-78/4 45DG240V4P

MERSEN FUSE H 2409P GEN PURPOSE 442-78/4 45DG240V4P

Mersen C1000157 Limitor-G high voltage DIN general purpose fuse rated 24 kV AC and 4 A for transformer protection.

SKU: C1000157Alt SKU: 45DG240V4PMPN: C1000157
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List Price £178.90 ex VAT
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Why Choose the Mersen C1000157 High Voltage DIN General Purpose Fuse?

The Mersen C1000157 is a premium Limitor®-G high voltage DIN general purpose fuse-link designed to provide dependable protection for transformers and medium voltage electrical distribution systems. Manufactured in accordance with IEC 60282-1, this fuse-link protects transformers against both short-circuit currents and low overcurrents, delivering reliable operation in demanding industrial and utility environments.

Constructed using pure silver fuse elements, silver-plated copper end caps and a durable ceramic body, the C1000157 offers outstanding current limiting performance, high mechanical strength and a long operational life. Its integrated 80 N striker ensures reliable operation with compatible medium voltage switchgear and transformer protection systems.

With a 24 kV AC voltage rating, 4 A current rating and 78 mm diameter × 442 mm length construction, the Mersen C1000157 is ideally suited for protecting transformers installed in substations, industrial facilities and utility power distribution networks.

Key Advantages

  • Designed specifically for medium voltage transformer protection.
  • General purpose fuse compliant with IEC 60282-1.
  • 24 kV AC rated voltage.
  • 4 A current rating.
  • Integrated 80 N striker for compatible switchgear.
  • Provides protection against short-circuit currents and low overcurrents.
  • Pure silver fuse elements ensure dependable electrical performance.
  • Robust ceramic construction for demanding industrial environments.

Key Features

  • Manufacturer: Mersen.
  • Series: Limitor®-G.
  • Part number: C1000157.
  • Catalogue number: 45DG240V4P.
  • Rated voltage: 24 kV AC.
  • Rated current: 4 A.
  • Fuse dimensions: 78 mm diameter × 442 mm length.
  • General purpose transformer protection fuse.
  • Integrated 80 N striker.
  • High strength ceramic body with silver-plated copper terminals.

Reliable Protection for Medium Voltage Networks

The Limitor®-G range is designed to protect transformers against both high fault currents and low overcurrents. Premium materials and precision manufacturing provide excellent current limiting characteristics, dependable operation and long service life in demanding electrical distribution systems.

The C1000157 is suitable for installation within transformer switchgear, substations, industrial facilities and OEM medium voltage equipment where reliable transformer protection is essential.

Typical Applications

  • Medium voltage transformers.
  • Industrial switchgear.
  • Electrical substations.
  • Utility distribution networks.
  • Power distribution systems.
  • OEM medium voltage equipment.

Technical Specifications

Voltage 240 V
Manufacturer Mersen
Series Limitor®-G
Model C1000157
Catalogue number 45DG240V4P
Product type High voltage DIN general purpose fuse
Application Transformer protection
Rated voltage 24 kV AC
Rated current 4 A
Breaking capacity 40 kA
Clearing I²t 1.8 kA²s
Cold resistance 280 mΩ
Power dissipation 5 W
Fuse size 78 mm × 442 mm
Body material Ceramic
Fuse element Pure silver
Terminal material Silver-plated copper
Striker Standard 80 N
Weight Approx. 4.1 kg
HS Code 85351000
Country of Manufacture Hungary
Device Type Fuse link
Fuse Type High voltage
Current 4 A

Frequently Asked Questions

What is the Mersen C1000157 used for?

The C1000157 is a high voltage DIN general purpose fuse designed to protect transformers against short-circuit currents and low overcurrents in medium voltage electrical systems.

What are the electrical ratings?

This fuse is rated for 24 kV AC operation with a 4 A current rating.

Does the fuse include a striker?

Yes. The fuse incorporates a standard 80 N striker for operation with compatible transformer switchgear.

What is the breaking capacity?

The C1000157 provides a 40 kA breaking capacity and is suitable for demanding transformer protection applications.

Which standard does this fuse comply with?

The C1000157 is manufactured in accordance with IEC 60282-1 for high voltage general purpose fuse-links.

Trusted for Medium Voltage Protection

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

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