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MERSEN FUSE H 3609P BCKUP TS VDE 537-56/25 45DB360V25PTS
Mersen J1032961 Limitor PTS high voltage DIN back-up fuse rated at 36 kV AC and 25 A with low power dissipation and an 80 N thermal striker for transformer protection.
£90.07
Why Choose the Mersen J1032961 High Voltage DIN Back-up Fuse?
The Mersen J1032961 is a premium DIN high voltage back-up fuse engineered for the protection of medium voltage transformers installed within air-insulated and gas-insulated switchgear. As part of the advanced Mersen Limitor®-PTS series, it combines low power dissipation with an integrated thermal striker, delivering dependable protection and improved thermal performance in demanding electrical installations.
Manufactured using pure silver fuse elements, silver-plated copper terminals and a robust ceramic body, the J1032961 is designed in accordance with IEC 60282-1 and VDE T402. Its current-limiting characteristics rapidly interrupt fault currents, helping to minimise thermal and mechanical stress on valuable transformers and associated switchgear.
With a rated voltage of 36 kV AC, a 25 A current rating and an integrated 80 N thermal striker, the Mersen J1032961 provides reliable transformer protection while reducing operating losses through its innovative low power dissipation design.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- 36 kV AC rated voltage for demanding power distribution systems.
- 25 A rated current for compatible transformer installations.
- Low power dissipation design helps reduce operating temperatures.
- Integrated 80 N thermal striker for compatible switchgear mechanisms.
- Manufactured to IEC 60282-1 and VDE T402 standards.
Key Features
- Mersen Limitor®-PTS high voltage DIN back-up fuse.
- Catalogue number: 45DB360V25PTS.
- 36 kV AC rated voltage.
- 25 A rated current.
- 56 mm diameter × 537 mm fuse-link.
- Integrated 80 N thermal striker.
- Low power loss construction.
- Suitable for transformer protection in air and gas insulated switchgear.
Reliable Protection for Medium Voltage Networks
High voltage back-up fuse-links are designed to interrupt high prospective fault currents before they can damage transformers and associated switchgear. Their current-limiting characteristics reduce the energy released during a fault, helping to improve equipment reliability and minimise maintenance costs.
The Mersen Limitor®-PTS range introduces low power dissipation technology to reduce operating temperatures while maintaining dependable protection. This makes the series particularly suitable for modern compact switchgear installations where thermal management is critical.
Typical Applications
- Medium voltage transformer protection.
- Air-insulated switchgear.
- Gas-insulated switchgear.
- Utility substations.
- Industrial power distribution systems.
- OEM medium voltage electrical equipment.
Technical Specifications
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| Voltage | 360 V | |
|---|---|---|
| Device Type | Fuse link | |
| Fuse Type | High voltage | |
| Current | 25 A | |
| Manufacturer | Mersen | |
| Series | Limitor®-PTS | |
| Model | J1032961 | |
| Catalogue number | 45DB360V25PTS | |
| Product type | High voltage DIN back-up fuse | |
| Rated voltage | 36 kV AC | |
| Rated current | 25 A | |
| Frequency | 50 / 60 Hz | |
| Fuse size | Ø56 mm × 537 mm | |
| Breaking capacity | 31.5 kA | |
| Minimum breaking current | 110 A | |
| Clearing I²t | 6,500 A²s | |
| Cold resistance | 118 mΩ | |
| Power dissipation at rated current | 100 W | |
| Thermal striker | 80 N | |
| Mounting | Clip mounting | |
| Terminal material | Silver-plated copper | |
| Body material | Ceramic | |
| Weight | Approx. 2.8 kg | |
| Standards | IEC 60282-1, VDE T402 | |
| HS Code | 85351000 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen J1032961 used for?
The J1032961 is designed to protect medium voltage transformers against short-circuit faults in high voltage electrical distribution systems.
What voltage and current ratings does this fuse have?
The fuse is rated at 36 kV AC with a continuous current rating of 25 A.
Does this fuse include a thermal striker?
Yes. It incorporates an integrated 80 N thermal striker for operation with compatible switchgear mechanisms.
What is the breaking capacity?
The Mersen J1032961 has a maximum AC breaking capacity of 31.5 kA.
What is the benefit of the Limitor®-PTS design?
The Limitor®-PTS range offers reduced power dissipation compared with conventional fuse-links, helping lower operating temperatures while maintaining dependable transformer protection.
Trusted by Power Distribution Professionals
Mersen Limitor®-PTS high voltage fuse-links are trusted worldwide by utilities, switchgear manufacturers and industrial engineers for dependable transformer protection, low operating losses and reliable fault interruption.
