Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
MERSEN FUSE H 729P BCKUP VDE192-65/80 N1000236
Mersen N1000236 Limitor-PD high voltage DIN back-up fuse-link rated at 7.2 kV AC and 80 A, with a 63 kA breaking capacity and integrated 80 N striker for transformer protection.
£102.63
Why Choose the Mersen N1000236 High Voltage Transformer Protection Fuse?
The Mersen N1000236 is a high voltage DIN back-up fuse-link designed to protect transformers and associated medium voltage equipment against damaging short-circuit currents. Part of the established Mersen Limitor®-PD series, it provides reliable current-limiting protection for high voltage switchgear, controlgear and electrical distribution systems.
This fuse-link is manufactured using pure silver fuse elements, silver-plated copper terminals and a robust ceramic body. These high-quality materials help provide dependable electrical conductivity, effective fault interruption and long service life in demanding industrial and utility installations.
Rated at 7.2 kV AC and 80 A, the Mersen N1000236 offers a maximum breaking capacity of 63 kA. Its integrated 80 N striker can provide fault indication or operate compatible switchgear after the fuse-link functions, supporting safe and coordinated transformer protection.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- 7.2 kV AC rated voltage for high voltage distribution systems.
- 80 A current rating for compatible transformer circuits.
- High 63 kA breaking capacity for dependable fault interruption.
- Integrated 80 N striker for switchgear operation and fault indication.
- Pure silver fuse elements provide consistent electrical performance.
- Silver-plated copper terminals support efficient current transfer.
- Durable ceramic body withstands demanding operating environments.
Key Features
- Mersen Limitor®-PD high voltage DIN back-up fuse-link.
- Catalogue number: 45DB72V80PD.
- Rated voltage: 7.2 kV AC.
- Rated current: 80 A.
- Fuse size: 65 mm diameter × 192 mm fuse body length.
- Overall product length: 258 mm.
- Clip-mounted cylindrical terminals.
- Integrated 80 N striker indication system.
- VDE T402 back-up fuse design.
- Compliant with IEC 60282-1 requirements.
Reliable Protection for Medium Voltage Transformers
High voltage back-up fuse-links protect transformers by rapidly interrupting significant short-circuit currents before excessive thermal or mechanical stress can damage transformer windings, switchgear or connected distribution equipment. Their current-limiting performance also helps reduce the peak energy passed into a fault.
The Mersen N1000236 is designed to tolerate normal transformer operating conditions while responding effectively to severe fault currents. Its integrated striker supports coordinated operation with compatible switchgear, helping isolate the affected circuit and provide clear fault indication.
Typical Applications
- Medium voltage transformer protection.
- High voltage switchgear assemblies.
- Transformer substations.
- Ring main units.
- Industrial power distribution systems.
- Utility distribution equipment.
- Compact secondary substations.
- OEM transformer controlgear.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Device Type | Fuse link | |
| Fuse Type | High voltage | |
| Current | 80 A | |
| Voltage | 7200 V | |
| Manufacturer | Mersen | |
| Series | Limitor®-PD | |
| Item number | N1000236 | |
| Catalogue number | 45DB72V80PD | |
| Product type | High voltage DIN back-up fuse-link | |
| Primary application | Transformer protection | |
| Rated voltage | 7.2 kV AC IEC | |
| Rated current | 80 A | |
| Current type | AC | |
| Fuse size | 65 mm diameter × 192 mm body length | |
| Overall product diameter | 65 mm | |
| Overall product length | 258 mm | |
| Mounting type | Clip mounting | |
| Maximum breaking capacity | 63 kA | |
| Minimum interrupting rating | 300 A | |
| Clearing I²t at rated voltage | 87.4 kA²s | |
| Power dissipation at rated current | 85 W | |
| Indication system | Striker | |
| Striker force | 80 N | |
| Terminal material | Silver-plated copper | |
| Terminal type | Cylindrical | |
| Body material | Ceramic | |
| Design | VDE T402 | |
| Product weight | Approx. 1.5 kg | |
| RoHS compliant | Yes | |
| EAN | 3605340456028 | |
| Applicable standard | IEC 60282-1 | |
| HS Code | 85351000 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen N1000236 used for?
The Mersen N1000236 is a high voltage DIN back-up fuse-link designed to protect transformers and associated switchgear against damaging short-circuit currents.
What are the voltage and current ratings?
The fuse-link has a rated voltage of 7.2 kV AC and a rated current of 80 A.
What is the breaking capacity of the N1000236?
The Mersen N1000236 has a maximum AC breaking capacity of 63 kA.
Does this fuse include a striker?
Yes. It incorporates an 80 N striker that can provide fault indication or operate compatible switchgear after the fuse-link functions.
What are the dimensions of this fuse-link?
The fuse body measures approximately 65 mm in diameter and 192 mm in length, with an overall product length of approximately 258 mm.
Is the N1000236 suitable for overload protection?
The N1000236 is a back-up fuse intended primarily to interrupt high short-circuit currents. It should be coordinated with suitable protective equipment for lower-level overload currents.
Trusted by Power Distribution Professionals Worldwide
Mersen Limitor® high voltage fuse-links are widely used by utilities, switchgear manufacturers, electrical contractors and industrial engineers for dependable transformer and medium voltage equipment protection.
