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MERSEN FUSE H 1209UP BCKUP T VDE292-56/10 S1000263
Mersen S1000263 Limitor-PTD DIN high voltage back-up fuse-link with controlled power dissipation and thermal striker for transformer protection. Rated 12 kV AC and 10 A.
£68.64
Why Choose the Mersen S1000263 High Voltage Transformer Fuse?
The Mersen S1000263 is a premium DIN high voltage back-up fuse-link engineered to protect transformers and medium voltage equipment against damaging short-circuit currents. As part of the advanced Mersen Limitor®-PTD series, it combines controlled power dissipation (CPD) with an integrated thermal striker, making it ideal for modern compact air-insulated and gas-insulated switchgear installations.
Manufactured in accordance with IEC 60282-1 and VDE 0670 T402, the S1000263 is built using pure silver fuse elements, silver-coated copper contact caps and a durable ceramic body. This construction provides dependable transformer protection, excellent fault interruption and reduced heat generation inside switchgear.
With a rated voltage of 12 kV AC and a rated current of 10 A, the Mersen S1000263 is ideally suited for medium voltage transformer protection. Its 56 mm diameter, 292 mm fuse length and integrated 80 N thermal striker provide straightforward installation into compatible DIN switchgear systems.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- 12 kV AC rated voltage for industrial and utility networks.
- 10 A rated current.
- Controlled power dissipation reduces switchgear heating.
- Integrated 80 N thermal striker for compatible switchgear tripping.
- High current-limiting performance minimises damaging fault energy.
- Pure silver fuse elements ensure dependable interruption.
- Recommended for compatible Siemens and Ormazabal gas-insulated switchgear.
Key Features
- Mersen Limitor®-PTD back-up fuse series.
- Catalogue number: 45DB120V10PTD.
- 12 kV AC rated voltage.
- 10 A rated current.
- 56 mm fuse diameter.
- 292 mm fuse length.
- Integrated 80 N thermal striker.
- Controlled power dissipation (CPD).
- Pure silver fuse elements.
- Silver-coated copper contact caps.
- High-strength ceramic body.
Reliable Protection for Medium Voltage Transformers
The Mersen S1000263 rapidly interrupts high prospective short-circuit currents before excessive thermal or mechanical stress can damage transformers, switchgear and associated equipment. Its current-limiting characteristics minimise fault energy while the controlled power dissipation design helps reduce heat inside enclosed switchgear.
The integrated thermal striker provides dependable operation of compatible switchgear trip mechanisms while helping improve protection coordination in compact transformer installations.
Typical Applications
- Medium voltage transformer protection.
- Gas-insulated switchgear (GIS).
- Air-insulated switchgear.
- Industrial power distribution.
- Utility substations.
- Renewable energy installations.
- Manufacturing facilities.
- OEM medium voltage equipment.
Technical Specifications
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| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | High voltage | |
| Current | 10 A | |
| Voltage | 12000 V | |
| Manufacturer | Mersen | |
| Series | Limitor®-PTD Back-up Fuses with Controlled Power Dissipation | |
| Model | S1000263 | |
| Catalogue number | 45DB120V10PTD | |
| Product type | DIN high voltage back-up fuse-link | |
| Primary application | Transformer protection | |
| Rated voltage | 12 kV AC | |
| Rated current | 10 A | |
| Breaking capacity | 63 kA | |
| Clearing I²t | 3 kA²s | |
| Minimum breaking current | 35 A | |
| Cold resistance | 227 mΩ | |
| Power dissipation at rated current | 29 W | |
| Fuse diameter | 56 mm | |
| Fuse length | 292 mm | |
| Thermal striker | 80 N | |
| Fuse element material | Pure silver | |
| Contact cap material | Silver-coated copper | |
| Body material | Ceramic | |
| Weight | Approx. 1.7 kg | |
| Frequency | 50 / 60 Hz | |
| Applicable standards | IEC 60282-1, VDE 0670 T402 | |
| EAN | 3605340456509 | |
| RoHS compliant | Yes | |
| HS Code | 85351000 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen S1000263 used for?
The Mersen S1000263 is a DIN high voltage back-up fuse-link designed to protect medium voltage transformers against damaging short-circuit currents.
What are the voltage and current ratings?
This fuse-link is rated at 12 kV AC with a continuous current rating of 10 A.
What does controlled power dissipation provide?
Controlled power dissipation helps reduce heat inside switchgear while maintaining dependable transformer protection and long-term reliability.
Does the S1000263 include a thermal striker?
Yes. It incorporates an integrated 80 N thermal striker for compatible switchgear tripping and indication mechanisms.
What are the physical dimensions?
The fuse-link measures 56 mm in diameter and 292 mm in length.
Trusted by Power Distribution Engineers Worldwide
Mersen Limitor®-PTD high voltage fuse-links are trusted by utilities, switchgear manufacturers and industrial engineers worldwide for dependable transformer protection, controlled power dissipation and reliable medium voltage fault interruption.
