Why Choose the Mersen FR14AM50V20P Cylindrical Fuse Link?
The Mersen FR14AM50V20P is a dependable 14 × 51 mm aM cylindrical fuse link with striker designed to provide short-circuit protection for motors, switchgear and industrial equipment with high starting currents. As part of the established Mersen FR14 aM ferrule fuse range, it delivers reliable current limitation and low thermal let-through performance in demanding motor control applications.
Its aM operating characteristic is specifically intended for motor circuits. The fuse allows normal motor starting currents to pass while interrupting unacceptable short-circuit currents before they can damage connected equipment. Because aM fuse links provide partial-range protection, they should be used with a suitable overload relay or another separate overload protection device.
With a rated current of 20 A, a rated voltage of 500 V AC and a high breaking capacity of 120 kA, the FR14AM50V20P is suitable for industrial motor starters, machinery and control panels. Its integrated striker can activate a compatible auxiliary contact to provide fuse operation indication or support remote monitoring.
Key Advantages
- Purpose-designed aM fuse link for motor circuit protection.
- 20 A rated current for motors and industrial inductive loads.
- 500 V AC IEC rating for low-voltage industrial systems.
- High 120 kA breaking capacity for dependable fault interruption.
- Integrated striker mechanism for indication or auxiliary contact operation.
- High current-limiting performance with low thermal energy let-through.
Key Features
- Mersen FR14 aM ferrule fuse series.
- 20 A rated current.
- 500 V AC rated voltage.
- 14 × 51 mm cylindrical fuse link.
- aM partial-range fuse characteristic.
- Integrated striker indication system.
- Ceramic insulating body.
- Silver-plated copper ferrule contacts.
Reliable Short-Circuit Protection for Motor Circuits
The Mersen FR14AM50V20P protects motor circuits and associated switchgear against damaging short-circuit currents. Its aM time-current characteristic accommodates the temporary inrush current produced during motor starting while providing effective current limitation when a serious fault occurs.
The built-in striker provides a mechanical indication when the fuse operates and can activate an auxiliary contact in a compatible fuse holder. This supports remote fault signalling, faster maintenance and improved system monitoring in industrial control panels and motor control centres.
Typical Applications
- Industrial motor starters.
- Motor control centres.
- Three-phase motor circuits.
- Industrial machinery and production equipment.
- OEM control panels.
- Switchgear requiring fuse operation indication.
