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MERSEN FUSE H 1209P BCKUP TS VDE 292-56/20 45DB120V20PTS2

MPN: T1032947

Alt. SKU: 45DB120V20PTS2

Special Price £87.25 £72.71 Regular Price £113.58

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Why Choose the High Voltage DIN Back-up Fuse for Transformer Limitor® VDE T402 12kVAC IEC 20A d56mm, L292mm With Thermal Striker 80N?

Engineered for high-reliability transformer protection, this DIN back-up fuse supports up to 12kVAC and 20A, meeting rigorous VDE T402 and IEC standards. The d56mm diameter and 292mm length ensure compatibility with a wide range of industrial applications.

The integrated 80N thermal striker enables precise fault indication and remote trip activation, while the low power loss design (45DB120V20PTS2) minimises operational costs and heat build-up. Ideal for demanding electrical environments requiring robust and safe circuit protection.

Product Code: T1032947

Key Benefits

  • High voltage rating of 12 kV suitable for industrial transformer protection.
  • 20A ampere rating ensures reliable circuit protection under load.
  • Thermal striker with 80N force provides clear fault indication and remote trip capability.
  • Low power dissipation of 25 W reduces heat build-up and operational costs.
  • Robust ceramic body and silver-plated copper terminals ensure durability and excellent conductivity.
  • Compact size (56mm diameter, 292mm length) with clip mounting for easy installation.

Compatibility

This fuse is compatible with transformer Limitor® systems designed to IEC and VDE T402 standards. It fits fuse holders and switchgear designed for 56mm diameter fuses with cylindrical silver-plated copper terminals and clip mounting. It is intended for AC applications up to 12 kV and 20 A.

Applications

  • Protection of power transformers in industrial and utility electrical networks.
  • Backup fuse for transformer Limitor® devices in medium voltage distribution.
  • Use in switchgear and control panels requiring high voltage IEC fuses.
  • Electrical installations demanding precise fault indication and remote trip functionality.

Frequently Asked Questions

What is the purpose of the thermal striker?

The thermal striker provides a mechanical indication of fuse operation and can activate remote trip circuits, improving safety and maintenance response times.

Can this fuse be used in DC applications?

No, this fuse is designed specifically for AC applications up to 12 kV as per IEC standards.

What does the breaking capacity of 65 kA mean?

The breaking capacity indicates the maximum fault current the fuse can safely interrupt without damage or hazard, which is 65 kiloamperes for this model.

Is this fuse suitable for outdoor installations?

The fuse body is ceramic and robust, but suitability for outdoor use depends on the fuse holder and enclosure used. Please ensure proper environmental protection is provided.

Common Search Terms

High voltage fuse, DIN back-up fuse, transformer fuse, Limitor® fuse, VDE T402 fuse, IEC 12kV fuse, 20A fuse, thermal striker fuse, ceramic fuse, silver-plated copper terminal fuse.

Technical Specifications

  • Item number: T1032947
  • Catalogue No: 45DB120V20PTS2
  • Description: High Voltage DIN Back-up fuse for Transformer Limitor® VDE T402 12kVAC IEC 20A d56mm, L292mm With Thermal Striker 80N Low power losses
  • EAN/UPC Code: 3605340537635
  • Rated voltage AC IEC: 12 kV
  • Ampere Rating: 20 A
  • AC or DC: AC
  • Fuse Size: d=56mm L=292mm
  • Mounting: Clip
  • Clearing I2t At Rated Voltage: 4700 A²s
  • AC Max I.R./Breaking Capacity: I1: 65 kA
  • Min Interrupting Rating (MBC): 90 A
  • Design Details: VDE T402
  • Indication System: Yes
  • Indication System Type: Striker
  • Connection/Terminal Material: Silver-Plated Copper
  • Connection/Terminal Type: Cylindrical
  • Product Diameter: 56 mm
  • Product Length: 292 mm
  • Sell Pack Quantity: 1 EA
  • Sell Pack Weight: 1.6 kg
  • Sell Pack Width: 75 mm
  • Sell Pack Length: 390 mm
  • Sell Pack Height: 75 mm
  • Product group: High Voltage IEC Fuses
  • Body/Insulating Material: Ceramic
  • Product Weight: 1.6 kg
  • Power Dissipation at Rated Current Value: 25 W
More Information
Manufacturer Part Number T1032947
Packed Quantity 1
Barcode 3605340537635
Height 292mm
Width 56mm
Depth 56mm
HS Code 85351000
Country of Manufacture Hungary
Manufacturer Mersen
Alternative Product SKU 45DB120V20PTS2
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