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MERSEN FUSE 1209P CPASJB 45/50,8.442 50 E076479
Mersen E076479 Limitor aSJB/D high voltage motor protection fuse rated at 12 kV AC and 50 A with a 20 N striker.
£478.33
Why Choose the Mersen E076479 High Voltage Motor Protection Fuse?
The Mersen E076479 is a premium high voltage DIN back-up fuse from the proven Limitor® aSJB/D range, specifically engineered to protect medium voltage motors against short-circuit faults while withstanding the repeated peak currents associated with motor starting. Designed in accordance with IEC 60644, it provides dependable protection for demanding industrial motor applications.
Manufactured using pure silver fuse elements, silver-plated brass end caps and a durable melamine fibreglass body, the E076479 delivers excellent electrical performance and long operational life. Its integrated 20 N striker provides reliable mechanical indication and operation with compatible medium voltage switchgear and motor starters.
With a rated operating voltage of 12 kV AC, a rated current of 50 A and a 50.8 mm × 442 mm DIN format, the Mersen E076479 is ideally suited for protecting high voltage motors in manufacturing plants, utilities, mining operations and heavy industrial applications.
Key Advantages
- Designed specifically for medium voltage motor protection.
- 12 kV AC IEC rated voltage.
- 50 A rated current.
- Integrated 20 N striker for compatible switchgear.
- Engineered to withstand repeated motor starting currents.
- 50 kA breaking capacity for dependable fault interruption.
- Pure silver fuse elements provide reliable electrical performance.
- Melamine fibreglass body offers excellent mechanical strength.
Key Features
- Manufacturer: Mersen
- Series: Limitor® aSJB/D
- Catalogue number: 45ASB120V50P-3
- SKU: E076479
- Rated voltage: 12 kV AC
- Rated current: 50 A
- Breaking capacity: 50 kA
- Fuse dimensions: 50.8 mm diameter × 442 mm length
- 20 N striker mechanism.
- Clip mounting.
- Designed for medium voltage motor protection.
Reliable Protection for Medium Voltage Motors
The Mersen Limitor® aSJB/D range has been specifically developed to protect medium voltage motors against damaging short-circuit currents while tolerating the repeated peak currents generated during motor starting. This allows dependable motor protection without nuisance fuse operation during normal starting conditions.
The E076479 is widely used within motor control centres, industrial processing plants, mining operations, utility installations and OEM switchgear where reliable medium voltage motor protection is essential.
Typical Applications
- Medium voltage motor protection.
- Motor control centres.
- Industrial manufacturing plants.
- Mining and quarrying operations.
- Water and wastewater treatment.
- Utility power distribution.
- OEM medium voltage switchgear.
- Heavy industrial infrastructure.
Technical Specifications
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| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | High voltage | |
| Current | 50 A | |
| Voltage | 12000 V | |
| Manufacturer | Mersen | |
| Model | E076479 | |
| Catalogue number | 45ASB120V50P-3 | |
| EAN | 3605340017946 | |
| Product type | High voltage motor protection fuse | |
| Series | Limitor® aSJB/D | |
| Application | Medium voltage motor protection | |
| Rated voltage | 12 kV AC | |
| Rated current | 50 A | |
| Maximum breaking capacity | 50 kA AC | |
| Minimum interrupting rating | 244 A | |
| Operating I²t at rated voltage | 12 kA²s | |
| Power dissipation | 31 W at 0.7 In | |
| Fuse size | Ø50.8 mm × 442 mm | |
| Mounting | Clip | |
| Terminal type | Cylindrical | |
| Striker force | 20 N | |
| Body material | Melamine fibreglass | |
| Fuse element | Pure silver | |
| Terminal material | Silver-plated brass | |
| Approximate weight | 2.2 kg | |
| Compliance | IEC 60644, REACH, RoHS |
Frequently Asked Questions
What is the Mersen E076479 used for?
It is a high voltage back-up fuse specifically designed to protect medium voltage motors against short-circuit faults while accommodating motor starting currents.
What voltage is this fuse rated for?
The E076479 has a rated operating voltage of 12 kV AC.
What is the current rating?
This fuse has a 50 A rated current.
Does this fuse include a striker?
Yes. It incorporates a 20 N striker for mechanical indication and operation with compatible switchgear.
Where is this fuse typically installed?
It is commonly installed within medium voltage motor starters and switchgear protecting industrial motors in utilities, mining operations and manufacturing facilities.
Trusted for High Voltage Motor Protection Worldwide
Mersen Limitor® aSJB/D fuse-links are trusted worldwide by OEMs, utilities and industrial engineers for dependable medium voltage motor protection, excellent interruption performance and long service life.
