MERSEN FUSE 500V CP 14X51 AM 45A P FR14AM50V45P

MERSEN FUSE 500V CP 14X51 AM 45A P FR14AM50V45P

Mersen FR14AM50V45P 14 × 51 mm aM cylindrical fuse-link with striker, rated 45 A and 500 V AC for industrial motor circuit protection.

SKU: FR14AM50V45PAlt SKU: FR14AM50V45PMPN: C216662
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Why Choose the Mersen FR14AM50V45P Cylindrical Fuse-Link?

The Mersen FR14AM50V45P is a premium aM cylindrical fuse-link engineered to provide dependable short-circuit protection for motor circuits, motor starters and industrial electrical equipment. As part of the trusted Mersen 14 × 51 mm IEC ferrule fuse range, this fuse delivers excellent current limiting and high fault interruption performance for demanding industrial applications.

Featuring an aM utilisation category, the FR14AM50V45P is specifically designed for motor protection, allowing normal motor starting currents to pass while rapidly clearing damaging short-circuit faults. The integrated striker enables operation of auxiliary contacts or remote indication devices when the fuse operates, improving maintenance efficiency and fault monitoring.

Rated at 45 A with a 500 V AC IEC voltage rating, this cylindrical fuse-link combines a durable ceramic body, silver-plated contacts and a 120 kA breaking capacity, making it ideal for motor control centres, switchgear, OEM machinery and industrial control panels.

Key Advantages

  • Designed specifically for motor circuit short-circuit protection.
  • 45 A current rating for industrial motor applications.
  • 500 V AC IEC rated voltage.
  • Integrated striker for auxiliary signalling and remote indication.
  • 120 kA breaking capacity for outstanding fault interruption.
  • Ceramic construction with silver-plated contacts for long operational life.

Key Features

  • Mersen FR14AM50V45P cylindrical fuse-link.
  • aM utilisation category for motor protection.
  • 14 × 51 mm IEC cylindrical format.
  • 45 A rated current.
  • 500 V AC IEC rated voltage.
  • 120 kA AC breaking capacity.
  • Integrated striker for auxiliary contact operation.
  • Ceramic body with silver-plated contacts.
  • Suitable for industrial fuse holders, switchgear and motor control equipment.

Reliable Protection for Industrial Motor Circuits

The Mersen FR14AM50V45P is designed to protect motors, contactors and associated switchgear against damaging short-circuit currents. Its aM operating characteristic allows normal motor inrush currents while rapidly interrupting severe fault currents, helping minimise equipment damage and production downtime.

The integrated striker activates auxiliary contacts or signalling devices when the fuse operates, making the FR14AM50V45P well suited to industrial automation systems where remote monitoring and rapid fault identification are essential.

Typical Applications

  • Motor starters.
  • Motor control centres.
  • Industrial switchgear.
  • Electrical control panels.
  • OEM machinery.
  • Industrial automation systems.

Technical Specifications

Current 45 A
Voltage 500 V
Manufacturer Mersen
Series Ferrule Fuse-links 14 × 51 aM 500 to 690 VAC
Model FR14AM50V45P
Catalogue reference C216662
Product type Cylindrical fuse-link
Fuse characteristic aM (partial-range motor protection)
Current rating 45 A
Rated voltage 500 V AC
Frequency 50 / 60 Hz
Breaking capacity 120 kA
Fuse size 14 × 51 mm
Body material Ceramic
Contact material Silver-plated
Indicator Striker
Power dissipation 2.85 W
Approximate weight 21 g
Compliance RoHS compliant
HS Code 85361050
Country of Manufacture Tunisia
Device Type Fuse link
Fuse Type Cylindrical
Fuse Size 14x51 mm
Fuse Class aM

Frequently Asked Questions

What is the Mersen FR14AM50V45P used for?

It provides high-performance short-circuit protection for industrial motor circuits and associated electrical equipment.

What does the aM fuse characteristic mean?

An aM fuse provides partial-range protection for motor circuits, allowing normal motor starting currents while protecting against high fault currents.

What is the voltage rating of this fuse?

The FR14AM50V45P is rated for operation on systems up to 500 V AC.

What is the function of the integrated striker?

The striker activates an auxiliary contact or signalling device when the fuse operates, enabling remote monitoring of fuse status.

Where is this fuse typically installed?

It is commonly installed in industrial motor control panels, switchgear and machine control equipment using compatible 14 × 51 mm fuse holders.

Trusted by Industrial Professionals Worldwide

Mersen cylindrical fuse-links are trusted by electrical engineers, panel builders and OEM machine manufacturers for dependable motor protection, excellent fault interruption capability and long-term operational reliability.

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