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MERSEN FUSE H 1209P BCKUP TS VDE 292-56/20 45DB120V20PTS2
Mersen T1032947 Limitor-PTS high voltage DIN back-up fuse rated at 12 kV AC and 20 A with low power dissipation and an 80 N thermal striker for transformer protection.
£72.92
Why Choose the Mersen T1032947 High Voltage DIN Back-up Fuse?
The Mersen T1032947 is a premium Limitor®-PTS high voltage DIN back-up fuse designed to provide reliable protection for medium voltage transformers against damaging short-circuit currents. Identified by catalogue number 45DB120V20PTS2, it combines low power dissipation with an integrated 80 N thermal striker, making it ideal for modern air-insulated and gas-insulated switchgear installations.
Manufactured in accordance with IEC 60282-1 and VDE T402, the Limitor®-PTS range uses a ceramic body, pure silver fuse elements and silver-plated copper end caps to provide dependable current-limiting performance whilst reducing heat build-up inside switchgear. This innovative design helps improve equipment reliability and extend service life.
Rated at 12 kV AC with a 20 A current rating, the T1032947 features a 56 mm diameter, a 292 mm overall length and a 65 kA breaking capacity. It is widely used for transformer protection within utility substations, industrial power distribution systems and compact medium voltage switchgear.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- 12 kV AC rated voltage.
- 20 A rated current.
- Low power dissipation reduces heat generation within switchgear.
- 65 kA breaking capacity for dependable fault interruption.
- Integrated 80 N thermal striker for coordinated switchgear operation.
Key Features
- Mersen Limitor®-PTS series.
- High voltage DIN back-up fuse.
- 12 kV AC IEC rated voltage.
- 20 A rated current.
- 56 mm diameter × 292 mm fuse size.
- 65 kA maximum AC breaking capacity.
- Low power dissipation technology.
- Integrated 80 N thermal striker.
- Ceramic body with pure silver fuse elements.
- Clip-mounted DIN construction.
Reliable Protection for Medium Voltage Transformers
High voltage back-up fuses rapidly interrupt damaging short-circuit currents before excessive thermal and mechanical forces can affect transformers, switchgear and associated electrical equipment. Their current-limiting characteristics improve equipment protection whilst reducing downtime and maintenance costs.
The Mersen T1032947 combines dependable fault interruption with low power dissipation technology and a thermal striker, making it particularly suitable for enclosed medium voltage switchgear where reducing internal temperatures is essential for long-term reliability.
Typical Applications
- Medium voltage transformer protection.
- Gas-insulated switchgear (GIS).
- Air-insulated switchgear (AIS).
- Distribution substations.
- Industrial power distribution systems.
- Utility electrical networks.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Voltage | 120 V | |
| Device Type | Fuse link | |
| Fuse Type | High voltage | |
| Current | 20 A | |
| Manufacturer | Mersen | |
| Series | Limitor®-PTS Back-up Fuses with Low Power Dissipation & Thermal Striker | |
| Model | T1032947 | |
| Catalogue number | 45DB120V20PTS2 | |
| EAN | 3605340537635 | |
| Product type | High voltage DIN back-up fuse | |
| Primary application | Transformer protection | |
| Rated voltage | 12 kV AC | |
| Rated current | 20 A | |
| Current type | AC | |
| Fuse size | 56 mm diameter × 292 mm | |
| Maximum AC breaking capacity | 65 kA | |
| Minimum breaking current | 90 A | |
| Clearing I²t | 4,700 A²s | |
| Cold resistance | 51 mΩ | |
| Power dissipation | 25 W | |
| Mounting type | Clip mounting | |
| Striker | Thermal striker, 80 N | |
| Body material | Ceramic | |
| Fuse element | Pure silver | |
| Terminal material | Silver-plated copper | |
| Weight | Approx. 1.6 kg | |
| Standards | IEC 60282-1, VDE T402 | |
| RoHS compliant | Yes | |
| HS Code | 85351000 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen T1032947 used for?
The T1032947 is a high voltage DIN back-up fuse designed to protect medium voltage transformers against damaging short-circuit currents.
What voltage is the T1032947 rated for?
This fuse has a rated operating voltage of 12 kV AC.
What is the current rating of this fuse?
The Mersen T1032947 has a rated current of 20 A.
Does this fuse include a thermal striker?
Yes. It incorporates an integrated 80 N thermal striker with low power dissipation technology for reliable operation within compatible medium voltage switchgear.
What is the breaking capacity of the T1032947?
The fuse provides a maximum AC breaking capacity of 65 kA for dependable interruption of high fault currents.
Trusted for Medium Voltage Transformer Protection
Mersen Limitor®-PTS high voltage fuse-links are trusted by utilities, switchgear manufacturers and industrial engineers for dependable transformer protection, low power losses and reliable operation in medium voltage electrical distribution systems.
