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MERSEN FUSE 500V CP 14X51 AM 20A P FR14AM50V20P
Mersen FR14AM50V20P 14 x 51 mm aM cylindrical fuse link with striker, rated at 20 A and 500 V AC with a 120 kA breaking capacity for motor and industrial switchgear protection.
£2.98
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.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Current | 20 A | |
| Voltage | 500 V | |
| Device Type | Accessory | |
| Fuse Type | Cylindrical | |
| Fuse Size | 14x51 mm | |
| Fuse Class | aM | |
| Manufacturer | Mersen | |
| Series | FR14 aM Ferrule Fuse Links | |
| Model | FR14AM50V20P | |
| Manufacturer item number | E212593 | |
| EAN | 8430399009018 | |
| Product type | Cylindrical fuse link with striker | |
| Fuse characteristic | aM | |
| Rated current | 20 A | |
| Rated voltage | 500 V AC | |
| Breaking capacity | 120 kA AC | |
| Fuse size | 14 × 51 mm | |
| Mounting method | Clip mounting | |
| Indication system | Striker | |
| Terminal type | Ferrule | |
| Terminal material | Silver-plated copper | |
| Body material | Ceramic | |
| Product diameter | Approximately 14.2 mm | |
| Product length | Approximately 51.1 mm | |
| Product weight | Approximately 20.9 g | |
| Power dissipation at rated current | 1.3 W | |
| RoHS compliant | Yes | |
| HS Code | 85361050 | |
| Country of Manufacture | Tunisia |
Frequently Asked Questions
What is the Mersen FR14AM50V20P used for?
It is designed to provide short-circuit protection for motors, switchgear and industrial equipment with high starting currents.
What is the current rating of this fuse?
The FR14AM50V20P has a rated current of 20 A.
What does the aM classification mean?
The aM classification identifies a partial-range motor fuse that protects against short-circuit currents while permitting normal motor starting currents.
Does this fuse provide overload protection?
No. The FR14AM50V20P should be combined with a correctly selected overload relay or another suitable overload protection device.
What is the purpose of the striker?
The integrated striker provides mechanical fuse operation indication and can activate a compatible auxiliary contact for remote signalling.
Trusted by Industrial Electrical Professionals
Mersen cylindrical fuse links are widely specified by panel builders, machine manufacturers and maintenance engineers for dependable motor circuit protection, high fault interruption capability and reliable operation in demanding industrial installations.
