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MERSEN FUSE H 729P BCKUP 192-65/63 E729PIB-D2192/63
Mersen B209301 Limitor-P high voltage DIN back-up fuse rated 7.2 kV AC and 63 A for transformer protection in medium voltage electrical distribution systems.
£82.17
Why Choose the Mersen B209301 High Voltage DIN Back-up Fuse?
The Mersen B209301 is a premium Limitor®-P high voltage DIN back-up fuse-link engineered to provide dependable transformer protection in medium voltage electrical distribution systems. Designed in accordance with IEC 60282-1, this fuse rapidly interrupts high fault currents, helping to safeguard transformers and associated switchgear whilst ensuring long-term operational reliability.
Manufactured using pure silver fuse elements, silver-plated copper end caps and a durable ceramic body, the B209301 delivers outstanding electrical performance, excellent current limiting characteristics and high mechanical strength. Its integrated 80 N striker provides reliable operation with compatible protection systems and medium voltage switchgear.
With a 7.2 kV AC voltage rating, 63 A current rating and 65 mm diameter × 192 mm length construction, the Mersen B209301 is ideally suited for protecting distribution transformers, substations and industrial medium voltage installations where dependable short-circuit protection is essential.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- Manufactured in accordance with IEC 60282-1.
- 7.2 kV AC rated voltage.
- 63 A rated current.
- Integrated 80 N striker for compatible switchgear.
- 63 kA breaking capacity.
- Pure silver fuse elements provide dependable electrical performance.
- Robust ceramic construction for demanding industrial environments.
Key Features
- Manufacturer: Mersen.
- Series: Limitor®-P.
- Part number: B209301.
- Catalogue number: 45DB72V63P.
- Rated voltage: 7.2 kV AC.
- Rated current: 63 A.
- Fuse dimensions: 65 mm diameter × 192 mm length.
- DIN high voltage back-up fuse for transformer protection.
- Standard 80 N striker.
- High quality ceramic body with silver-plated copper terminals.
Reliable Protection for Medium Voltage Networks
The Limitor®-P range has been developed to protect transformers against damaging short-circuit currents whilst delivering excellent current limiting performance. Precision manufacturing and premium materials ensure dependable operation, helping improve network reliability and reduce equipment damage in demanding industrial and utility applications.
The B209301 is suitable for installation within substations, industrial switchgear, renewable energy installations and OEM medium voltage equipment where dependable transformer protection is critical.
Typical Applications
- Medium voltage transformers.
- Industrial switchgear.
- Electrical substations.
- Utility distribution networks.
- Renewable energy installations.
- OEM medium voltage equipment.
Technical Specifications
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| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | High voltage | |
| Current | 63 A | |
| Voltage | 7200 V | |
| Manufacturer | Mersen | |
| Series | Limitor®-P | |
| Model | B209301 | |
| Catalogue number | 45DB72V63P | |
| Product type | High voltage DIN back-up fuse | |
| Application | Transformer protection | |
| Rated voltage | 7.2 kV AC | |
| Rated current | 63 A | |
| Breaking capacity | 63 kA | |
| Minimum breaking current | 220 A | |
| Clearing I²t | 85 kA²s | |
| Cold resistance | 8.75 mΩ | |
| Power dissipation | 60 W | |
| Fuse size | 65 mm × 192 mm | |
| Body material | Ceramic | |
| Fuse element | Pure silver | |
| Terminal material | Silver-plated copper | |
| Striker | Standard 80 N | |
| Weight | Approx. 1.5 kg | |
| HS Code | 85351000 |
Frequently Asked Questions
What is the Mersen B209301 used for?
The B209301 is a high voltage DIN back-up fuse designed to protect transformers and medium voltage electrical equipment against high short-circuit currents.
What are the electrical ratings?
This fuse is rated for 7.2 kV AC operation with a 63 A current rating.
Does the fuse include a striker?
Yes. The fuse incorporates a standard 80 N striker for operation with compatible switchgear and protection systems.
What is the breaking capacity?
The B209301 provides a 63 kA AC breaking capacity with a minimum breaking current of 220 A.
Which standards does this fuse comply with?
The fuse is manufactured in accordance with IEC 60282-1 for high voltage DIN back-up fuse-links.
Trusted for Medium Voltage Protection
Mersen Limitor®-P high voltage fuse-links are trusted worldwide by utilities, switchgear manufacturers and industrial engineers for dependable transformer protection and reliable medium voltage electrical distribution.
