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MERSEN FUSE 729P CPASJB 45/67.292 160 Q078168
Mersen Q078168 Limitor aSJB/D high voltage motor protection back-up fuse-link rated at 7.2 kV AC and 160 A with integrated 20 N striker.
£549.28
Why Choose the Mersen Q078168 High Voltage Motor Protection Fuse?
The Mersen Q078168 is a premium high voltage motor protection back-up fuse-link developed to safeguard medium voltage motors, switchgear and associated electrical equipment against damaging short-circuit currents. As part of the proven Mersen Limitor® aSJB/D series, it is specifically engineered for motor protection applications where repeated motor starting currents and dependable fault interruption are essential.
Manufactured using pure silver fuse elements, silver-plated brass terminals and a durable melamine fibreglass body, the fuse delivers excellent electrical performance, low power losses and reliable operation throughout its service life. The integrated 20 N striker provides mechanical indication and can operate compatible switchgear or signalling devices following fuse operation.
With a rated voltage of 7.2 kV AC, a rated current of 160 A and a high breaking capacity of 50 kA, the Q078168 is ideally suited to protecting medium voltage motors used in industrial plants, utilities and critical infrastructure.
Key Advantages
- Designed specifically for medium voltage motor protection.
- 7.2 kV AC IEC voltage rating.
- 160 A continuous current rating.
- 50 kA breaking capacity for dependable fault interruption.
- Integrated 20 N striker for indication and switchgear operation.
- Current-limiting design reduces fault energy.
- Engineered to withstand repeated motor starting currents.
- Manufactured using premium silver conductive components.
Key Features
- Mersen Limitor® aSJB/D motor protection fuse-link.
- Catalogue number: 45ASB72V160P-2.
- Rated voltage: 7.2 kV AC.
- Rated current: 160 A.
- Fuse body size: 67 mm diameter × 292 mm length.
- Overall length: 358 mm.
- Integrated 20 N striker indication system.
- Pure silver fuse elements.
- Silver-plated brass cylindrical terminals.
- Melamine fibreglass insulating body.
Reliable Protection for Medium Voltage Motors
Motor protection back-up fuse-links rapidly interrupt high fault currents whilst tolerating the repeated inrush currents generated during motor starting. Their current-limiting characteristics reduce thermal and mechanical stress on motors, cables and switchgear, helping improve equipment reliability and minimise downtime.
The Mersen Limitor® aSJB/D range has been developed specifically for medium voltage motor applications where dependable protection, high breaking capacity and long service life are essential.
Typical Applications
- Medium voltage electric motors.
- Motor control centres.
- Industrial processing plants.
- Mining and quarrying equipment.
- Water treatment facilities.
- Power generation plants.
- 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 | 160 A | |
| Voltage | 7200 V | |
| Manufacturer | Mersen | |
| Series | Limitor® aSJB/D | |
| Model | Q078168 | |
| Catalogue number | 45ASB72V160P-2 | |
| Product type | High voltage motor protection back-up fuse-link | |
| Application | Medium voltage motor protection | |
| Rated voltage | 7.2 kV AC IEC | |
| Rated current | 160 A | |
| Current type | AC | |
| Maximum breaking capacity | 50 kA | |
| Minimum interrupting current | 840 A | |
| Operating I²t | 340 kA²s | |
| Power dissipation | 37 W @ 0.7 In | |
| Fuse body diameter | 67 mm | |
| Fuse body length | 292 mm | |
| Overall product length | 358 mm | |
| Mounting | Clip mounting | |
| Indication | 20 N striker | |
| Terminal material | Silver-plated brass | |
| Terminal type | Cylindrical | |
| Body material | Melamine fibreglass | |
| Weight | Approx. 2.7 kg | |
| Standards | IEC 60282-1, IEC 60644, DIN 43625 | |
| EAN | 3605340028270 | |
| RoHS compliant | Yes |
Frequently Asked Questions
What is the Mersen Q078168 used for?
The Q078168 is a high voltage back-up fuse-link designed to protect medium voltage motors and associated switchgear from damaging short-circuit currents.
What voltage is the Q078168 rated for?
The fuse-link has a rated operating voltage of 7.2 kV AC.
What current rating does this fuse have?
The Mersen Q078168 has a continuous current rating of 160 A.
Does the fuse include a striker?
Yes. It incorporates an integrated 20 N striker for fault indication and compatible switchgear operation.
What applications is this fuse suitable for?
It is designed primarily for protecting medium voltage motors used in industrial plants, utilities and power distribution systems.
Trusted by Medium Voltage Engineers Worldwide
Mersen Limitor® motor protection fuse-links are trusted worldwide to provide dependable short-circuit protection for medium voltage motors, switchgear and critical industrial power systems.
