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MERSEN FUSE 729P CPASJD 45/90.442 400 729PCPASJD45/90.442400
Mersen V085624 Limitor aSJB/D high voltage motor back-up fuse rated at 7.2 kV AC and 400 A with integrated 20 N striker for industrial motor protection.
£1,051.46
Why Choose the Mersen V085624 45ASD72V400P-3 High Voltage Motor Fuse?
The Mersen V085624 is a heavy-duty Limitor® aSJB/D high voltage back-up fuse engineered specifically for protecting medium and high voltage motors against damaging short-circuit faults. Identified by catalogue number 45ASD72V400P-3, it is designed for demanding industrial motor applications where reliable fault protection and repeated motor starting capability are essential.
Manufactured using premium materials including silver-plated copper fuse elements, silver-plated brass end caps and a robust melamine fibreglass body, the V085624 delivers dependable long-term performance. Its design enables it to withstand the repeated peak currents associated with motor starting whilst providing rapid interruption during serious fault conditions.
With a 7.2 kV AC rated voltage, 400 A current rating and integrated 20 N striker, this high voltage fuse is ideally suited for industrial motors, switchgear and medium voltage distribution systems requiring dependable protection and reliable operation.
Key Advantages
- Designed specifically for high voltage motor protection.
- 7.2 kV AC rated voltage for medium voltage installations.
- 400 A current rating for high-power motor applications.
- Designed to withstand repeated motor starting currents.
- Integrated 20 N striker for indication and switch operation.
- Robust construction for demanding industrial environments.
Key Features
- Mersen Limitor® aSJB/D series.
- Catalogue number: 45ASD72V400P-3.
- 7.2 kV AC IEC rated voltage.
- 400 A rated current.
- High voltage back-up fuse for motor protection.
- 20 N striker mechanism.
- Silver-plated copper fuse elements.
- Melamine fibreglass fuse body with silver-plated brass end caps.
Reliable Protection for High Voltage Motors
The Mersen Limitor® aSJB/D range is specifically developed for protecting high voltage motors operating under demanding industrial conditions. These fuses tolerate repeated inrush currents during motor starting while providing dependable interruption of damaging short-circuit faults, helping maximise equipment protection and system reliability.
The integrated striker enables mechanical indication or operation of compatible switchgear mechanisms when the fuse operates, supporting faster fault identification and safer isolation procedures.
Typical Applications
- Medium and high voltage motor protection.
- Industrial motor control systems.
- Mining and heavy industry.
- Water treatment and pumping stations.
- Process manufacturing facilities.
- Medium voltage switchgear and substations.
Technical Specifications
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| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | High voltage | |
| Current | 400 A | |
| Voltage | 7200 V | |
| Manufacturer | Mersen | |
| Series | Limitor® aSJB/D Back-up Fuses | |
| Model | V085624 | |
| Catalogue number | 45ASD72V400P-3 | |
| Product type | High voltage motor back-up fuse | |
| Rated voltage | 7.2 kV AC | |
| Rated current | 400 A | |
| Current type | AC | |
| Body diameter | 88 mm | |
| Overall length | 442 mm | |
| Striker force | 20 N | |
| Power dissipation | 69 W at 0.7 × In | |
| Minimum breaking current | 2,700 A | |
| Operating I²t at rated voltage | 4,100 kA²s | |
| Approximate weight | 6.1 kg | |
| EAN | 3605340071078 | |
| Compliance | RoHS compliant |
Frequently Asked Questions
What is the Mersen V085624 used for?
The V085624 is a high voltage back-up fuse designed to protect industrial motors and medium voltage electrical equipment against short-circuit faults.
What are the voltage and current ratings?
This fuse is rated at 7.2 kV AC with a 400 A current rating.
Does this fuse include a striker?
Yes. The V085624 incorporates an integrated 20 N striker for indication or operation of compatible switchgear mechanisms.
Can the fuse withstand motor starting currents?
Yes. It has been specifically designed to tolerate repeated motor starting currents whilst providing reliable back-up short-circuit protection.
What are the dimensions of this fuse?
The fuse has an approximate body diameter of 88 mm and an overall length of 442 mm.
Trusted for High Voltage Motor Protection
Mersen Limitor® high voltage motor fuses are trusted by industrial engineers worldwide for reliable protection of motors, switchgear and medium voltage electrical systems operating under demanding conditions.
