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MERSEN FUSE H 2409P BCKUP VDE442-56/10 G1000253
Mersen G1000253 Limitor-PD high-voltage DIN back-up transformer fuse-link rated at 24 kV AC and 10 A, with a 56 mm diameter, 442 mm length and 80 N striker.
£64.45
Why Choose the Mersen G1000253 High-Voltage Fuse?
The Mersen G1000253, also identified by catalogue number 45DB240V10PD, is a high-voltage DIN back-up fuse-link designed to protect medium-voltage transformers against the damaging effects of short-circuit currents. As part of the established Mersen Limitor®-PD fuse range, it provides dependable current-limiting protection for high-voltage switchgear, controlgear and electrical distribution installations.
Rated at 10 A and 24 kV AC, the G1000253 is engineered to interrupt high fault currents rapidly. Its current-limiting action helps reduce the peak current and energy passing through the protected transformer, limiting thermal and mechanical stress on windings, conductors and switchgear components.
The fuse features a durable ceramic body, pure silver fuse elements and silver-coated copper end caps. An integrated 80 N medium striker can operate compatible switchgear mechanisms or provide visual and electrical indication when the fuse has operated. Its DIN-format construction measures approximately 56 mm in diameter and 442 mm in length.
Key Advantages
- Reliable high-voltage back-up fuse for transformer protection.
- 24 kV AC voltage rating for medium-voltage power systems.
- 10 A rated current for compatible transformer installations.
- High breaking capacity for effective short-circuit protection.
- Strong current limitation helps minimise fault-related equipment damage.
- Integrated 80 N striker for indication or switchgear operation.
- Suitable for both indoor and outdoor applications when installed in appropriate equipment.
Key Features
- Mersen Limitor®-PD back-up fuse series.
- DIN high-voltage cartridge fuse-link.
- 24 kV AC rated voltage.
- 10 A rated current.
- 63 kA breaking capacity at the rated voltage.
- Approximately 56 mm body diameter.
- Approximately 442 mm overall length.
- 80 N medium striker mechanism.
- Pure silver fuse elements for consistent interruption performance.
- Silver-coated copper end caps and robust ceramic body.
- Designed for installation in a compatible high-voltage fuse holder.
- RoHS-compliant construction.
Reliable Short-Circuit Protection for Transformers
The Mersen G1000253 is a back-up fuse, which means it is specifically designed to interrupt high fault currents above its minimum breaking current. It is commonly coordinated with other protective equipment to provide comprehensive protection for medium-voltage transformers and distribution systems.
During a severe short circuit, the fuse elements melt rapidly and interrupt the fault before the prospective current reaches its maximum value. This current-limiting performance helps protect transformer windings, busbars, cables and switchgear while reducing the risk of extensive system damage and unplanned downtime.
Typical Applications
- Medium-voltage transformer protection.
- High-voltage switchgear and controlgear.
- Transformer feeder panels.
- Fuse-switch combination units.
- Industrial electrical distribution networks.
- Commercial and infrastructure power systems.
- Indoor and outdoor medium-voltage substations.
Technical Specifications
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| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | High voltage | |
| Current | 10 A | |
| Voltage | 24000 V | |
| Manufacturer | Mersen | |
| Series | Limitor®-PD | |
| Item number | G1000253 | |
| Catalogue number | 45DB240V10PD | |
| Product type | High-voltage DIN back-up fuse-link | |
| Primary application | Transformer short-circuit protection | |
| Rated voltage | 24 kV AC | |
| Rated current | 10 A | |
| Breaking capacity | 63 kA | |
| Current type | AC | |
| Operating characteristic | Back-up, current-limiting fuse | |
| Fuse body diameter | 56 mm | |
| Overall length | 442 mm | |
| Striker force | 80 N | |
| Fuse element material | Pure silver | |
| End-cap material | Silver-coated copper | |
| Body material | Ceramic | |
| Mounting type | Requires compatible DIN fuse holder | |
| Applicable standard | IEC 60282-1 | |
| Additional standards | VDE 0670 Part 4, VDE 0670 Part 402 and DIN 43625 | |
| RoHS compliant | Yes | |
| EAN / UPC | 3605340455892 | |
| HS Code | 85351000 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen G1000253 used for?
The Mersen G1000253 is a high-voltage back-up fuse-link designed to protect medium-voltage transformers against the damaging effects of high short-circuit currents.
What are the voltage and current ratings of this fuse?
The G1000253 has a rated voltage of 24 kV AC and a rated current of 10 A.
What is the alternative part number for the G1000253?
The Mersen catalogue number for this fuse is 45DB240V10PD.
What is a back-up high-voltage fuse?
A back-up fuse is designed to interrupt high short-circuit currents above a specified minimum breaking current. It is normally coordinated with another protective device to cover lower-level overload conditions.
Does the Mersen G1000253 include a striker?
Yes. It incorporates an 80 N medium striker that can activate compatible switchgear mechanisms or indicate that the fuse has operated.
What are the dimensions of the fuse?
The fuse has an approximate body diameter of 56 mm and an overall length of 442 mm.
Trusted High-Voltage Protection from Mersen
Mersen Limitor®-PD fuse-links are trusted in medium-voltage installations for dependable transformer protection, high breaking capacity and effective current limitation within industrial and infrastructure power distribution systems.
