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MERSEN FUSE 1209P CPASJB 45/50,8.442 32 D076478
Mersen D076478 Limitor aSJB/D high voltage motor protection fuse rated at 12 kV AC and 32 A with 20 N striker.
£452.61
Why Choose the Mersen D076478 High Voltage Motor Protection Fuse?
The Mersen D076478 is a premium high voltage DIN back-up fuse from the renowned Limitor® aSJB/D range, specifically designed to protect medium voltage motors against the effects of short circuit currents. Developed for demanding industrial applications, it delivers dependable fault interruption while withstanding the repeated peak currents associated with motor starting.
Manufactured using high purity silver fuse elements, silver-plated brass end caps and a durable melamine fibreglass body, the D076478 offers excellent electrical performance and long operational life. An integrated 20 N striker provides reliable mechanical indication and operation with compatible switchgear and motor control equipment.
With a 12 kV AC rated voltage, 32 A current rating and 50.8 mm × 442 mm DIN dimensions, this fuse is ideally suited for protecting high voltage motors in industrial plants, utilities, mining operations and infrastructure projects where dependable medium voltage motor protection is essential.
Key Advantages
- Designed specifically for high voltage motor protection.
- 12 kV AC IEC rated voltage.
- 32 A rated current.
- Integrated 20 N striker for dependable fault indication.
- Engineered to withstand repeated motor starting currents.
- High interrupting capacity for reliable fault clearance.
- Melamine fibreglass body provides excellent mechanical strength.
- Suitable for industrial, utility and OEM medium voltage installations.
Key Features
- Manufacturer: Mersen
- Series: Limitor® aSJB/D Back-up Fuses
- Catalogue number: 45ASB120V32P-3
- SKU: D076478
- Rated voltage: 12 kV AC
- Rated current: 32 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 High Voltage Motors
The Mersen Limitor® aSJB/D range has been specifically engineered for protecting medium voltage motors against damaging short circuit faults while tolerating the repeated peak currents created during motor starting. This makes the range particularly suitable for demanding industrial applications where operational reliability is essential.
The D076478 is widely used in motor control centres, mining operations, manufacturing plants, utility installations and infrastructure projects where dependable medium voltage motor protection is required.
Typical Applications
- Medium voltage motor protection.
- Motor control centres.
- Industrial manufacturing plants.
- Mining and quarrying equipment.
- Water and wastewater treatment.
- Utility power distribution.
- OEM switchgear assemblies.
- Heavy industrial infrastructure.
Technical Specifications
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| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | High voltage | |
| Current | 32 A | |
| Voltage | 12000 V | |
| Manufacturer | Mersen | |
| Model | D076478 | |
| Catalogue number | 45ASB120V32P-3 | |
| Product type | High voltage motor protection fuse | |
| Series | Limitor® aSJB/D | |
| Application | Medium voltage motor protection | |
| Rated voltage | 12 kV AC | |
| Rated current | 32 A | |
| Breaking capacity | 50 kA AC | |
| Minimum breaking current | 168 A | |
| Clearing I²t | 5 kA²s | |
| Power dissipation | 21 W at 0.7 In | |
| Fuse size | Ø50.8 mm × 442 mm | |
| Mounting | Clip | |
| Striker force | 20 N | |
| Body material | Melamine fibreglass | |
| Fuse element | High purity silver | |
| Terminal material | Silver-plated brass | |
| Weight | Approximately 2.2 kg | |
| Compliance | IEC 60644, REACH |
Frequently Asked Questions
What is the Mersen D076478 used for?
It is a high voltage back-up fuse specifically designed to protect medium voltage motors against short circuit faults.
What voltage is this fuse rated for?
The D076478 has a rated operating voltage of 12 kV AC.
What is the current rating?
This fuse has a 32 A current rating.
Does this fuse include a striker?
Yes. It features an integrated 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 and manufacturing facilities.
Trusted for High Voltage Motor Protection Worldwide
Mersen Limitor® aSJB/D fuse-links are trusted by OEMs, utilities and industrial engineers worldwide for reliable medium voltage motor protection, high interrupting performance and long service life.
