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MERSEN FUSE 729P CPASJD 45/76.442 200 729PCPASJD45/76.422200
Mersen Q085620 Limitor aSJB/D high voltage motor protection back-up fuse-link rated at 7.2 kV AC and 200 A with integrated 20 N striker.
£809.91
Why Choose the Mersen Q085620 High Voltage Motor Protection Fuse?
The Mersen Q085620 is a premium high voltage motor protection back-up fuse-link engineered to protect medium voltage motors, switchgear and associated equipment against high short-circuit currents. As part of the proven Mersen Limitor® aSJB/D series, it is specifically designed for demanding motor applications where repeated starting currents and dependable fault interruption are essential.
Constructed using silver-plated copper fuse elements, silver-plated brass end caps and a durable melamine fibreglass body, the fuse provides excellent electrical performance, long service life and reliable operation in industrial environments. Its integrated 20 N striker enables mechanical fault indication and operation of compatible switchgear mechanisms.
With a rated voltage of 7.2 kV AC, a rated current of 200 A and a 76 mm × 442 mm body size, the Q085620 is ideal for medium voltage motor circuits requiring high fault-clearing capability and dependable protection.
Key Advantages
- Purpose-designed for medium voltage motor protection.
- 7.2 kV AC IEC rated voltage.
- 200 A current rating.
- High current-limiting capability for reduced fault energy.
- Integrated 20 N striker for switchgear operation.
- Designed to withstand repeated motor starting currents.
- Premium silver-plated conductive components.
- Complies with recognised IEC high voltage fuse standards.
Key Features
- Mersen Limitor® aSJB/D motor protection fuse-link.
- Catalogue number: 45ASD72V200P-3.
- Rated voltage: 7.2 kV AC.
- Rated current: 200 A.
- Fuse body size: 76 mm diameter × 442 mm length.
- Integrated 20 N striker.
- Silver-plated copper fuse elements.
- Silver-plated brass terminals.
- Melamine fibreglass insulating body.
- Current-limiting back-up fuse design.
Reliable Protection for Medium Voltage Motors
The Mersen Q085620 rapidly interrupts high short-circuit currents while tolerating the repeated inrush currents generated during motor starting. Its current-limiting design helps minimise thermal and mechanical stress on motors, cables and switchgear, improving equipment reliability and reducing downtime.
The Limitor® aSJB/D range has been developed specifically for medium voltage motor protection where high reliability, consistent performance and long operational life are essential.
Typical Applications
- Medium voltage electric motors.
- Motor control centres.
- Industrial processing plants.
- Mining operations.
- Water treatment facilities.
- Power generation installations.
- HV switchgear assemblies.
- OEM motor starter equipment.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Device Type | Fuse link | |
| Fuse Type | High voltage | |
| Current | 200 A | |
| Voltage | 7200 V | |
| Manufacturer | Mersen | |
| Series | Limitor® aSJB/D | |
| Model | Q085620 | |
| Catalogue number | 45ASD72V200P-3 | |
| Product type | High voltage motor protection back-up fuse-link | |
| Rated voltage | 7.2 kV AC IEC | |
| Rated current | 200 A | |
| Application | Medium voltage motor protection | |
| Current type | AC | |
| Maximum breaking capacity | 50 kA | |
| Minimum breaking current | 1100 A | |
| Operating I²t | 560 kA²s | |
| Power dissipation | 47 W @ 0.7 In | |
| Fuse body diameter | 76 mm | |
| Fuse body length | 442 mm | |
| Indication | 20 N striker | |
| Terminal material | Silver-plated brass | |
| Fuse element material | Silver-plated copper | |
| Body material | Melamine fibreglass | |
| Weight | Approx. 4.2 kg | |
| Standards | IEC 60282-1, IEC 60644 | |
| EAN | 3605340071030 | |
| RoHS compliant | Yes |
Frequently Asked Questions
What is the Mersen Q085620 used for?
The Q085620 is a high voltage back-up fuse-link designed to protect medium voltage motors and associated switchgear against damaging short-circuit currents.
What is the voltage rating of the Q085620?
The fuse has a rated operating voltage of 7.2 kV AC.
What current rating does this fuse have?
The Mersen Q085620 has a continuous current rating of 200 A.
Does it include a striker mechanism?
Yes. The fuse incorporates an integrated 20 N striker for fault indication and operation of compatible switchgear.
What applications is the Q085620 suitable for?
It is suitable for protecting medium voltage motors, motor starters, industrial switchgear and power distribution systems.
Trusted by Medium Voltage Engineers Worldwide
Mersen Limitor® motor protection fuse-links are trusted by utilities, OEMs and industrial engineers worldwide for dependable protection of medium voltage motors and critical electrical infrastructure.
