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MERSEN FUSE H 729P BCKUP VDE192-78/100 45DB72V100PD
Mersen P1000237 Limitor-PD DIN high-voltage back-up fuse rated at 7.2 kV AC and 100 A with integrated 80 N striker for transformer protection.
£113.02
Why Choose the Mersen P1000237 Limitor®-PD High Voltage Transformer Fuse?
The Mersen P1000237, catalogue number 45DB72V100PD, is a premium DIN high voltage back-up fuse developed specifically for the protection of medium-voltage transformers against damaging short-circuit currents. As part of the Mersen Limitor®-PD range, it complies with IEC 60282-1 and VDE 0670 T402, providing dependable transformer protection with optimised power dissipation for modern high-voltage switchgear installations.
Manufactured using pure silver fuse elements, silver-coated copper end caps and a robust ceramic body, the P1000237 delivers outstanding electrical performance and long operational life. Its integrated 80 N striker provides reliable mechanical indication and can operate compatible switchgear trip mechanisms for improved system safety.
Rated at 7.2 kV AC and 100 A, the Mersen P1000237 is ideal for transformer protection within substations, utilities, industrial plants and OEM medium-voltage switchgear. Its 78 mm diameter × 192 mm length DIN construction ensures compatibility with suitable high-voltage fuse mounting systems.
Key Advantages
- Designed specifically for medium-voltage transformer protection.
- 7.2 kV AC rated voltage for IEC high-voltage systems.
- 100 A current rating.
- Integrated 80 N striker for switchgear tripping and indication.
- Low power dissipation design improves thermal performance.
- High 63 kA breaking capacity for dependable fault interruption.
Key Features
- Mersen Limitor®-PD back-up fuse.
- Catalogue number: 45DB72V100PD.
- Item number: P1000237.
- Rated voltage: 7.2 kV AC.
- Rated current: 100 A.
- 78 mm diameter × 192 mm length.
- Integrated 80 N striker.
- Pure silver fuse elements.
- Silver-coated copper end caps.
- Ceramic insulating body.
Reliable High Voltage Transformer Protection
Medium-voltage transformers require specialised protection capable of clearing high fault currents before excessive thermal or mechanical damage occurs. The Limitor®-PD range has been developed specifically for transformer protection, providing dependable current-limiting performance while maintaining optimised thermal characteristics inside enclosed switchgear.
The integrated striker enables operation of compatible switchgear trip mechanisms or signalling devices, helping improve safety and simplify maintenance. Premium construction materials and compliance with recognised international standards make the P1000237 suitable for demanding industrial and utility installations.
Typical Applications
- Medium-voltage transformer protection.
- High-voltage switchgear.
- Electrical substations.
- Industrial power distribution systems.
- Utility electrical networks.
- OEM medium-voltage equipment.
Technical Specifications
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| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | High voltage | |
| Current | 100 A | |
| Voltage | 7200 V | |
| Manufacturer | Mersen | |
| Series | Limitor®-PD Back-up Fuses | |
| Item number | P1000237 | |
| Catalogue number | 45DB72V100PD | |
| Product type | High voltage DIN back-up fuse | |
| Application | Transformer protection | |
| Rated voltage | 7.2 kV AC | |
| Rated current | 100 A | |
| Current type | AC | |
| Fuse size | Ø78 mm × 192 mm | |
| Maximum breaking capacity | 63 kA | |
| Minimum breaking current | 440 A | |
| Clearing I²t | 180 kA²s | |
| Cold resistance | 4 mΩ | |
| Power dissipation | 96 W | |
| Striker force | 80 N | |
| Construction | Pure silver fuse elements, silver-coated copper end caps, ceramic body | |
| Standards | IEC 60282-1, VDE 0670 T402 | |
| Weight | Approx. 2.1 kg | |
| EAN | 3605340456059 | |
| RoHS compliant | Yes | |
| HS Code | 85351000 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen P1000237 used for?
The P1000237 is a high-voltage DIN back-up fuse designed specifically to protect medium-voltage transformers against short-circuit currents.
What is the voltage rating of the P1000237?
The fuse has a rated operating voltage of 7.2 kV AC.
What is the current rating?
The Mersen P1000237 has a 100 A current rating.
Does this fuse include a striker?
Yes. It incorporates an integrated 80 N striker for switchgear tripping and mechanical indication.
What size is the P1000237?
The fuse measures approximately 78 mm in diameter and 192 mm in length.
Trusted for High Voltage Transformer Protection
Mersen Limitor®-PD high-voltage transformer protection fuses are trusted worldwide by utilities, switchgear manufacturers and industrial engineers for dependable protection of transformers and medium-voltage electrical distribution systems.
