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MERSEN FUSE H 2409P BCKUP VDE442-56/6,3 F1000252
Mersen F1000252 Limitor-PD high-voltage DIN back-up fuse rated at 24 kV AC and 6.3 A with a 63 kA breaking capacity and integrated 80 N striker.
£63.46
Why Choose the Mersen F1000252 High-Voltage Back-Up Fuse?
The Mersen F1000252, catalogue reference 45DB240V6,3PD, is a high-voltage DIN back-up fuse-link designed to protect distribution transformers against the damaging effects of short-circuit currents. Part of the Mersen Limitor®-PD series, it provides dependable transformer protection while maintaining low power dissipation for medium-voltage switchgear installations.
Rated at 24 kV AC and 6.3 A, the F1000252 is intended for use in transformer protection systems where reliable fault interruption and compliance with IEC 60282-1 and VDE T402 are required. Its ceramic body, pure silver fuse elements and silver-plated copper terminals provide long-term electrical and mechanical reliability.
An integrated 80 N striker provides positive mechanical indication and can operate compatible switchgear trip mechanisms following fuse operation. The compact DIN construction makes the fuse suitable for modern air-insulated and gas-insulated switchgear.
Key Advantages
- High-voltage DIN back-up fuse for transformer protection.
- 24 kV AC rated voltage.
- 6.3 A rated current.
- 63 kA breaking capacity for dependable fault interruption.
- Integrated 80 N striker for indication and switchgear operation.
- Low power dissipation helps minimise switchgear heating.
- Ceramic construction with silver fuse elements.
- Suitable for industrial, commercial and utility medium-voltage installations.
Key Features
- Mersen Limitor®-PD back-up fuse series.
- Manufacturer item number F1000252.
- Catalogue number 45DB240V6,3PD.
- 24 kV AC IEC rated voltage.
- 6.3 A rated current.
- 63 kA maximum breaking capacity.
- 23 A minimum breaking current.
- Total clearing I²t of 0.8 kA²s.
- Power dissipation of approximately 32 W.
- Integrated 80 N striker indication system.
- DIN clip-mounted construction.
- Compliant with IEC 60282-1 and VDE T402.
Reliable Protection for Medium-Voltage Transformers
The Mersen F1000252 rapidly interrupts high short-circuit currents before they can damage transformers and associated medium-voltage equipment. Its current-limiting characteristics reduce thermal and mechanical stress while providing dependable transformer protection in demanding installations.
As a back-up fuse-link, the F1000252 is intended for high fault-current interruption and should be coordinated with suitable overload protection. Correct selection should consider transformer rating, prospective fault current and switchgear requirements.
Typical Applications
- Distribution transformer protection.
- Medium-voltage substations.
- Industrial electrical distribution.
- Air-insulated switchgear.
- Gas-insulated switchgear.
- Utility power distribution networks.
- Renewable energy transformer installations.
- Commercial medium-voltage switchgear.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Device Type | Fuse link | |
| Fuse Type | High voltage | |
| Current | 6.3 A | |
| Voltage | 24000 V | |
| Manufacturer | Mersen | |
| Series | Limitor®-PD | |
| Item number | F1000252 | |
| Catalogue number | 45DB240V6,3PD | |
| Product type | High-voltage DIN back-up fuse-link | |
| Application | Distribution transformer protection | |
| Rated voltage | 24 kV AC | |
| Rated current | 6.3 A | |
| Maximum breaking capacity | 63 kA | |
| Minimum breaking current | 23 A | |
| Total clearing I²t | 0.8 kA²s | |
| Power dissipation | 32 W | |
| Current type | AC | |
| Operating class | Back-up fuse | |
| Design | VDE T402 | |
| Striker force | 80 N | |
| Indication system | Striker | |
| Mounting | Clip mounting | |
| Fuse diameter | 56 mm | |
| DIN contact length | 442 mm | |
| Overall product length | 508 mm | |
| Body material | Ceramic | |
| Terminal material | Silver-plated copper | |
| Terminal type | Cylindrical | |
| Product weight | Approximately 2.4 kg | |
| EAN / UPC | 3605340456394 | |
| Standards | IEC 60282-1, VDE T402 | |
| RoHS compliant | Yes | |
| HS Code | 85351000 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen F1000252 used for?
The Mersen F1000252 is a high-voltage DIN back-up fuse-link designed to protect medium-voltage distribution transformers against damaging short-circuit currents.
What are the voltage and current ratings?
The fuse is rated at 24 kV AC with a nominal current rating of 6.3 A.
What is the breaking capacity of the F1000252?
The fuse provides a maximum breaking capacity of 63 kA and a minimum breaking current of 23 A.
Does the F1000252 include a striker?
Yes. It incorporates an integrated 80 N striker for indication and operation of compatible switchgear mechanisms.
What standards does the Mersen F1000252 comply with?
The fuse is manufactured in accordance with IEC 60282-1 and VDE T402 requirements for high-voltage transformer protection fuse-links.
Trusted High-Voltage Transformer Protection
Mersen Limitor®-PD fuse-links are trusted worldwide by utilities, OEMs and electrical engineers for dependable transformer protection, reliable current limitation and long service life.
