Why Choose the Mersen R1000262 High Voltage Transformer Fuse?
The Mersen R1000262 is a high-performance DIN high voltage back-up fuse-link designed to protect transformers and associated medium voltage equipment against the damaging effects of short-circuit currents. Part of the established Mersen Limitor®-PD series, it provides dependable current limitation for high voltage switchgear, controlgear and electrical distribution systems.
The R1000262 is manufactured using carefully selected materials for consistent electrical performance and long-term durability. Its pure silver fuse elements provide rapid and reliable fault interruption, while silver-coated copper contact caps and a robust ceramic body support dependable operation in demanding industrial, commercial and utility installations.
With a rated voltage of 24 kV AC and a rated current of 100 A, the Mersen R1000262 is suitable for compatible medium voltage transformer circuits. Its DIN-format construction features an 88 mm diameter, a 442 mm length and an integrated 80 N striker for use with compatible switchgear tripping or indication mechanisms.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- 24 kV AC rated voltage for high voltage electrical systems.
- 100 A rated current for compatible transformer circuits.
- High current limitation helps reduce damaging short-circuit energy.
- Low switching voltage supports effective equipment protection.
- Integrated 80 N striker for switchgear tripping or indication.
- Suitable for both indoor and outdoor electrical installations.
- Complies with recognised IEC, VDE and DIN high voltage fuse standards.
Key Features
- Mersen Limitor®-PD back-up fuse series.
- Catalogue number: 45DB240V100PD.
- 24 kV AC rated voltage.
- 100 A rated current.
- 88 mm fuse diameter.
- 442 mm fuse length.
- Integrated 80 N medium striker mechanism.
- Pure silver fuse elements for dependable fault interruption.
- Silver-coated copper contact caps.
- Durable ceramic insulating body.
- Clip-compatible cap design for straightforward assembly.
High voltage back-up fuse-links protect transformers by interrupting substantial short-circuit currents before excessive thermal and mechanical forces can damage transformer windings, switchgear or connected electrical equipment. The current-limiting performance of the Mersen R1000262 helps reduce both the peak fault current and the total energy transferred into the protected circuit.
As a back-up fuse-link, the R1000262 is intended primarily for high-current fault protection and should be coordinated with appropriate overload protection. When the fuse operates, its integrated striker can actuate a compatible switchgear trip mechanism or provide a clear indication that the fuse-link requires replacement.
Typical Applications
- Medium voltage distribution transformer protection.
- High voltage switchgear and controlgear.
- Industrial power distribution systems.
- Utility substations and distribution networks.
- Renewable energy and power generation installations.
- Manufacturing and processing facilities.
- Commercial infrastructure power systems.
- OEM medium voltage electrical assemblies.
