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MERSEN FUSE 1209P CPASJB 45/50,8.442 63 A120PCPASJB45/50,8
Mersen F076480 Limitor aSJB/D high-voltage motor back-up fuse rated at 12 kV AC and 63 A with a 20 N striker and 60 kA breaking capacity.
£485.00
Why Choose the Mersen F076480 High-Voltage Motor Fuse?
The Mersen F076480, catalogue reference 45ASB120V63P-3, is a high-voltage back-up fuse-link specifically developed for the protection of medium-voltage motors, switchgear and controlgear. Part of the Mersen Limitor® aSJB/D series, it is engineered to withstand repeated motor starting currents while providing rapid interruption of damaging short-circuit faults.
Rated at 12 kV AC with a 63 A current rating, the F076480 delivers dependable current-limiting protection for industrial motor applications. Its back-up operating characteristic makes it ideal for coordinated protection schemes where overload protection is provided separately while the fuse clears high-energy fault currents.
The fuse-link is manufactured using a durable melamine fibreglass body, silver-plated copper fuse elements and silver-plated brass terminals. It also incorporates an integrated 20 N striker for reliable indication and operation of compatible switchgear mechanisms following fuse operation.
Key Advantages
- High-voltage back-up fuse designed for motor protection.
- 12 kV AC rated voltage for medium-voltage systems.
- 63 A rated current.
- Designed to tolerate repeated motor starting peak currents.
- 60 kA breaking capacity for dependable short-circuit interruption.
- Integrated 20 N striker for indication and switchgear operation.
- Current-limiting design helps reduce thermal and mechanical fault stresses.
- Manufactured using premium silver-plated conductive materials for long service life.
Key Features
- Mersen Limitor® aSJB/D motor fuse series.
- Manufacturer article number F076480.
- Catalogue number 45ASB120V63P-3.
- 12 kV AC IEC rated voltage.
- 63 A rated current.
- 60 kA maximum breaking capacity.
- 325 A minimum breaking current.
- Total clearing I²t of 24 kA²s.
- Power dissipation of approximately 35 W at 0.7 × rated current.
- IEC 60644 motor fuse coefficient K of 0.51.
- Integrated striker indication system.
- Clip-mounted cylindrical DIN construction.
Reliable Protection for Medium-Voltage Motors
The Mersen F076480 is designed to withstand the repeated inrush currents associated with medium-voltage motor starting while remaining capable of rapidly interrupting severe short-circuit faults. Its current-limiting performance helps reduce the thermal and mechanical stress imposed on motors, cables and switchgear during fault conditions.
As a back-up fuse-link, the F076480 should be coordinated with suitable overload protection and selected according to the motor characteristics, starting conditions and available fault current. This coordinated approach delivers dependable protection and long service life for critical industrial equipment.
Typical Applications
- Medium-voltage induction motor protection.
- Industrial motor control centres.
- Pumps and compressor systems.
- Ventilation and fan installations.
- Mining and mineral processing equipment.
- Oil and gas processing plants.
- Manufacturing and production facilities.
- Medium-voltage switchgear and controlgear.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Device Type | Fuse link | |
| Fuse Type | High voltage | |
| Fuse Size | 8x442 mm | |
| Current | 63 A | |
| Voltage | 12000 V | |
| Manufacturer | Mersen | |
| Series | Limitor® aSJB/D | |
| Item number | F076480 | |
| Catalogue number | 45ASB120V63P-3 | |
| Product type | High-voltage motor back-up fuse-link | |
| Application | Medium-voltage motor protection | |
| Rated voltage | 12 kV AC | |
| Rated current | 63 A | |
| Maximum breaking capacity | 60 kA | |
| Minimum breaking current | 325 A | |
| Total clearing I²t | 24 kA²s | |
| Power dissipation | 35 W at 0.7 × rated current | |
| Motor fuse coefficient K | 0.51 | |
| Current type | AC | |
| Fuse operating class | Back-up | |
| Striker force | 20 N | |
| Indication system | Integrated striker | |
| Mounting method | Clip mounting | |
| Fuse size | Ø50.8 × 442 mm | |
| Overall length | Approximately 442 mm | |
| Body material | Melamine fibreglass | |
| Terminal material | Silver-plated brass | |
| Fuse element material | Silver-plated copper | |
| Weight | Approximately 2.2 kg | |
| EAN / UPC | 3605340017953 | |
| Standards | IEC 60282-1, IEC 60644, DIN 43625 | |
| RoHS compliant | Yes |
Frequently Asked Questions
What is the Mersen F076480 used for?
The Mersen F076480 is a high-voltage back-up fuse-link designed to protect medium-voltage motors and associated switchgear against high short-circuit currents.
What are the voltage and current ratings?
The fuse has a rated voltage of 12 kV AC and a rated current of 63 A.
Can this fuse withstand repeated motor starting currents?
Yes. The Limitor® aSJB/D range is specifically designed for motor applications and supports repeated starting current peaks while maintaining reliable fault protection.
What is the breaking capacity of the F076480?
The fuse has a maximum breaking capacity of 60 kA with a minimum breaking current of 325 A.
Does the Mersen F076480 include a striker?
Yes. It incorporates an integrated 20 N striker for fault indication and operation of compatible switchgear mechanisms.
Trusted High-Voltage Motor Protection
Mersen Limitor® aSJB/D motor fuse-links are trusted worldwide for dependable protection of medium-voltage motors, combining excellent current-limiting performance with reliable operation in demanding industrial environments.
