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MERSEN FUSE H 2409P GEN PURPOSE 442-78/6,3 45DG240V6,3P
Mersen D1000158 Limitor-G high voltage DIN general-purpose fuse rated at 24 kV AC and 6.3 A, with an 80 N striker for medium voltage transformer protection.
£130.07
Why Choose the Mersen D1000158 High Voltage General-Purpose Fuse?
The Mersen D1000158 is a reliable high voltage DIN general-purpose fuse designed to protect medium voltage transformers against short-circuit currents and low overcurrents. Part of the established Mersen Limitor®-G range, it provides dependable electrical protection for high voltage switchgear, controlgear and power distribution systems.
Manufactured using pure silver fuse elements, silver-coated copper end caps and a robust ceramic body, the D1000158 delivers consistent interruption performance and excellent mechanical durability. Its general-purpose operating characteristic provides a wider protection range than a conventional back-up fuse, helping safeguard transformers against both high fault currents and lower overcurrent conditions.
With a rated operating voltage of 24 kV AC, a rated current of 6.3 A and an integrated 80 N striker, the D1000158 is suitable for use within compatible medium voltage switchgear. Its DIN format measures approximately 78 mm in diameter and 442 mm in length, supporting straightforward installation in suitable fuse bases and clips.
Key Advantages
- Provides general-purpose transformer protection.
- Protects against both short-circuit currents and low overcurrents.
- 24 kV AC rated operating voltage.
- 6.3 A rated current.
- Integrated 80 N striker for compatible switchgear mechanisms.
- Pure silver fuse elements provide dependable interruption performance.
- Robust ceramic body offers excellent electrical insulation and durability.
- Designed in accordance with IEC 60282-1.
Key Features
- Mersen Limitor®-G general-purpose fuse range.
- 24 kV AC rated voltage.
- 6.3 A rated current.
- DIN high voltage fuse format.
- 78 mm diameter and 442 mm length.
- Integrated 80 N striker.
- Clip mounting arrangement.
- Pure silver fuse elements.
- Silver-coated copper end caps.
- Durable ceramic fuse body.
Reliable Protection for Medium Voltage Transformers
General-purpose high voltage fuses such as the Mersen D1000158 provide protection across a broader current range than back-up fuse-links. They are designed to interrupt high short-circuit currents as well as lower overcurrents that could otherwise cause excessive heating and damage within transformers and associated electrical equipment.
The Limitor®-G range combines proven fuse technology with carefully selected conductive and insulating materials. This construction helps the D1000158 deliver dependable operation within substations, industrial power networks and medium voltage distribution installations where equipment protection and continuity of service are essential.
Typical Applications
- Medium voltage transformer protection.
- High voltage switchgear and controlgear.
- Utility substations and distribution networks.
- Industrial electrical distribution systems.
- Renewable energy substations.
- Commercial infrastructure power systems.
- OEM medium voltage switchgear assemblies.
- Transformer feeder protection.
Technical Specifications
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| Voltage | 240 V | |
|---|---|---|
| Phase | Three Phase | |
| Device Type | Fuse link | |
| Fuse Type | High voltage | |
| Current | 6.3 A | |
| Manufacturer | Mersen | |
| Series | Limitor®-G | |
| Model | D1000158 | |
| Catalogue number | 45DG240V6,3P | |
| EAN / UPC | 3605340453317 | |
| Product type | High voltage DIN general-purpose fuse | |
| Application | Medium voltage transformer protection | |
| Rated operating voltage | 24 kV AC | |
| Rated current | 6.3 A | |
| Fuse classification | General-purpose fuse | |
| Current type | AC | |
| Diameter | 78 mm | |
| Length | 442 mm | |
| Mounting type | Clip mounting | |
| Striker force | 80 N | |
| Clearing I²t at rated voltage | 2 kA²s | |
| Fuse element material | Pure silver | |
| End cap material | Silver-coated copper | |
| Body material | Ceramic | |
| Applicable standard | IEC 60282-1 | |
| Compliance | RoHS compliant | |
| HS Code | 85351000 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen D1000158 used for?
The Mersen D1000158 is a high voltage general-purpose fuse designed to protect medium voltage transformers against short-circuit currents and low overcurrents.
What is the voltage rating of the D1000158?
The fuse has a rated operating voltage of 24 kV AC.
What is the current rating of this fuse?
The Mersen D1000158 has a rated current of 6.3 A.
What is a general-purpose high voltage fuse?
A general-purpose fuse is designed to interrupt currents ranging from its minimum operating current through to high short-circuit fault levels, providing protection against both lower overcurrents and major faults.
Does the D1000158 include a striker?
Yes. It includes an integrated 80 N striker for mechanical indication and operation with compatible medium voltage switchgear.
Trusted for High Voltage Protection Worldwide
Mersen Limitor®-G fuse-links are used in medium voltage installations worldwide to provide reliable transformer protection, dependable fault interruption and durable performance in demanding electrical networks.
