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MERSEN FUSE H 1759P BCKUP 367-56/6,3 45DB175V6,3P
Mersen V1000564 Limitor-P high voltage DIN transformer back-up fuse rated at 17.5 kV AC and 6.3 A, with a 63 kA breaking capacity and integrated 80 N striker.
£60.06
Why Choose the Mersen V1000564 High Voltage DIN Back-up Fuse?
The Mersen V1000564 is a reliable Limitor®-P high voltage DIN back-up fuse developed to protect transformers and associated medium voltage equipment against damaging short-circuit currents. Also identified by catalogue number 45DB175V6,3P, it is designed for use in high voltage switchgear, controlgear and electrical distribution systems.
Manufactured in accordance with IEC 60282-1 and the VDE T4 design standard, the V1000564 combines dependable fault interruption with durable, high-quality construction. Pure silver fuse elements, silver-plated copper terminals and a ceramic insulating body provide consistent electrical performance and long-term operational reliability.
With a rated voltage of 17.5 kV AC, a rated current of 6.3 A and an integrated 80 N striker, the Mersen V1000564 is suitable for transformer feeders, substations and medium voltage switchgear assemblies requiring secure and predictable short-circuit protection.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- 17.5 kV AC IEC rated voltage for high voltage installations.
- 6.3 A rated current for compatible transformer circuits.
- High 63 kA breaking capacity for dependable fault interruption.
- Integrated 80 N striker supports indication and switchgear operation.
- Premium ceramic and silver construction provides reliable long-term performance.
Key Features
- Mersen Limitor®-P series.
- Catalogue number: 45DB175V6,3P.
- 17.5 kV AC IEC voltage rating.
- 6.3 A rated current.
- DIN high voltage back-up fuse construction.
- 80 N standard striker mechanism.
- Pure silver fuse elements and silver-plated copper terminals.
- Compliant with IEC 60282-1 and RoHS requirements.
Reliable Protection for Medium Voltage Transformers
High voltage back-up fuses help protect transformers, cables and switchgear by interrupting significant short-circuit currents before they cause extensive thermal or mechanical damage. The Mersen V1000564 provides reliable current limitation and fault clearance for transformer circuits operating at voltages up to 17.5 kV AC.
The integrated striker provides a clear indication when the fuse has operated and can actuate a compatible switchgear mechanism. This supports coordinated circuit isolation, faster fault identification and safer maintenance within medium voltage power distribution systems.
Typical Applications
- Medium voltage distribution transformer protection.
- High voltage switchgear and controlgear.
- Electrical distribution substations.
- Ring main units and transformer feeders.
- Industrial medium voltage power systems.
- Utility and infrastructure distribution networks.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Voltage | 175 V | |
| Phase | Three Phase | |
| Device Type | Fuse link | |
| Fuse Type | High voltage | |
| Current | 6.3 A | |
| Manufacturer | Mersen | |
| Series | Limitor®-P Back-up Fuses | |
| Model | V1000564 | |
| Catalogue number | 45DB175V6,3P | |
| Product type | High voltage DIN transformer back-up fuse | |
| Rated voltage | 17.5 kV AC | |
| Rated current | 6.3 A | |
| Current type | AC | |
| Breaking capacity | 63 kA | |
| Minimum interrupting rating | 30 A | |
| Clearing I²t at rated voltage | 1 kA²s | |
| Power dissipation at rated current | 11 W | |
| Fuse size | 56 mm diameter × 367 mm | |
| Overall product length | 433 mm | |
| Mounting type | Clip mounting | |
| Terminal type | Cylindrical | |
| Terminal material | Silver-plated copper | |
| Body material | Ceramic | |
| Design | VDE T4 | |
| Indication system | 80 N striker | |
| Product weight | Approx. 2.2 kg | |
| Compliance | IEC 60282-1 and RoHS | |
| EAN | 3605340467680 | |
| HS Code | 85351000 |
Frequently Asked Questions
What is the Mersen V1000564 used for?
The V1000564 is a high voltage DIN back-up fuse designed to protect transformers and associated medium voltage equipment against damaging short-circuit currents.
What are the voltage and current ratings?
The fuse is rated at 17.5 kV AC with a rated current of 6.3 A.
What is the breaking capacity of the V1000564?
The Mersen V1000564 has a maximum AC breaking capacity of 63 kA.
Does this fuse include a striker?
Yes. It incorporates an integrated 80 N striker for fuse operation indication and compatible switchgear tripping functions.
What are the dimensions of this fuse?
The fuse has a body diameter of 56 mm, a fuse-link length of 367 mm and an overall product length of approximately 433 mm.
Trusted for High Voltage Transformer Protection
Mersen Limitor® high voltage fuse-links are widely used by utilities, switchgear manufacturers and industrial engineers to provide dependable transformer protection and reliable short-circuit interruption.
