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MERSEN FUSE H 2409P BCKUP VDE442-56/20 J1000255
Mersen J1000255 Limitor PD high voltage DIN back-up fuse rated at 24 kV AC and 20 A, with a 56 mm diameter, 442 mm length and integrated 80 N striker for transformer protection.
£67.34
Why Choose the Mersen J1000255 High Voltage DIN Back-up Fuse?
The Mersen J1000255 is a dependable high voltage DIN back-up fuse designed to protect medium voltage transformers against the damaging effects of short-circuit currents. Part of the established Mersen Limitor®-PD series, this fuse-link is engineered for use in high voltage switchgear, controlgear and electrical distribution systems where reliable fault interruption is essential.
Manufactured in accordance with IEC 60282-1 and VDE 0670 T402, the J1000255 provides effective current-limiting protection for transformer installations. Its construction uses pure silver fuse elements, silver-coated copper end caps and a robust ceramic body to support consistent electrical performance and long-term reliability in demanding operating environments.
With a rated voltage of 24 kV AC, a rated current of 20 A and an integrated 80 N striker, the Mersen J1000255 is well suited to medium voltage transformer protection applications. Its standard DIN dimensions allow straightforward integration into compatible switchgear and fuse mounting systems.
Key Advantages
- Reliable back-up fuse protection for medium voltage transformers.
- 24 kV AC voltage rating for high voltage distribution systems.
- 20 A rated current for compatible transformer installations.
- Integrated 80 N striker for operation with switchgear mechanisms.
- Complies with IEC 60282-1 and VDE 0670 T402.
- Premium silver, copper and ceramic construction supports dependable performance.
Key Features
- Mersen Limitor®-PD high voltage DIN back-up fuse.
- Catalogue number: 45DB240V20PD.
- 24 kV AC rated voltage.
- 20 A rated current.
- 56 mm diameter and 442 mm length.
- Integrated 80 N striker.
- Designed specifically for transformer short-circuit protection.
- RoHS-compliant construction.
Reliable Protection for Medium Voltage Transformers
High voltage back-up fuses are used to interrupt substantial short-circuit currents before they can cause severe thermal or mechanical damage to transformers and associated distribution equipment. Their current-limiting operation helps reduce the energy passed into the protected circuit during a fault.
The Mersen Limitor®-PD range is developed for reliable use in high voltage switchgear and transformer protection systems. The integrated striker can interact with compatible switchgear mechanisms to provide mechanical indication or initiate disconnection when the fuse operates.
Typical Applications
- Medium voltage transformer protection.
- High voltage switchgear assemblies.
- Electrical substations and distribution networks.
- Industrial medium voltage power systems.
- Utility transformer installations.
- OEM switchgear and controlgear equipment.
Technical Specifications
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| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | High voltage | |
| Current | 20 A | |
| Voltage | 24000 V | |
| Manufacturer | Mersen | |
| Series | Limitor®-PD | |
| Model | J1000255 | |
| Catalogue number | 45DB240V20PD | |
| Product type | High voltage DIN back-up fuse | |
| Primary application | Transformer protection | |
| Rated voltage | 24 kV AC | |
| Rated current | 20 A | |
| Supply type | AC | |
| Fuse diameter | 56 mm | |
| Fuse length | 442 mm | |
| Striker force | 80 N | |
| Fuse element material | Pure silver | |
| End cap material | Silver-coated copper | |
| Body material | Ceramic | |
| EAN / UPC | 3605340456424 | |
| Standards | IEC 60282-1, VDE 0670 T402 | |
| RoHS compliance | Yes | |
| HS Code | 85351000 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen J1000255 used for?
The J1000255 is a high voltage DIN back-up fuse designed primarily to protect medium voltage transformers against the effects of short-circuit currents.
What voltage is the Mersen J1000255 rated for?
The fuse has a rated operating voltage of 24 kV AC.
What is the current rating of this fuse?
The Mersen J1000255 has a rated current of 20 A.
Does the J1000255 include a striker?
Yes. It includes an integrated 80 N striker for use with compatible high voltage switchgear mechanisms.
Which standards apply to this fuse?
The J1000255 is designed in accordance with IEC 60282-1 and VDE 0670 T402 requirements for high voltage back-up fuse-links.
Trusted by Power Distribution Professionals
Mersen Limitor®-PD high voltage fuse-links are widely used by utilities, switchgear manufacturers and electrical engineers requiring reliable transformer protection and dependable short-circuit interruption in medium voltage systems.
