Why Choose the Mersen FR22AM69V50 Cylindrical Fuse-Link?
The Mersen FR22AM69V50 is a high-performance aM cylindrical fuse-link designed to provide reliable short-circuit protection for motors, motor starters and associated industrial switchgear. Part of the established Mersen 22 × 58 mm ferrule fuse-link range, it is engineered for motor circuits operating at voltages up to 690 V AC.
Its aM partial-range characteristic allows the fuse-link to withstand the temporary inrush currents generated during normal motor starting while rapidly interrupting dangerous short-circuit currents. Because aM fuse-links are intended primarily for short-circuit protection, the FR22AM69V50 should be coordinated with a suitable overload relay or electronic motor protection device.
With a 50 A rated current, a standard 22 × 58 mm cylindrical format and a high 120 kA AC breaking capacity, the FR22AM69V50 is well suited to industrial motor control panels, machinery and automation equipment. Its ceramic body and silver-plated copper ferrules provide dependable electrical performance in demanding industrial environments.
Key Advantages
- Designed specifically for motor circuit short-circuit protection.
- 50 A rated current for industrial motor applications.
- 690 V AC rated voltage for demanding electrical systems.
- aM partial-range characteristic accommodates normal motor starting currents.
- High 120 kA AC breaking capacity for dependable fault interruption.
- Current-limiting performance helps reduce thermal and mechanical stress.
- Standard 22 × 58 mm cylindrical format.
- Ceramic body with silver-plated copper contacts for reliable operation.
Key Features
- Mersen FR22AM69V50 cylindrical fuse-link.
- aM utilisation category.
- 50 A rated current.
- 690 V AC IEC rated voltage.
- 22 × 58 mm fuse size.
- 120 kA AC breaking capacity.
- Clip-mounted ferrule installation.
- Ceramic insulating body.
- Silver-plated copper terminals.
- RoHS-compliant construction.
Reliable Short-Circuit Protection for Motor Circuits
The Mersen FR22AM69V50 limits and interrupts high prospective fault currents before they can cause serious damage to motors, contactors, cables and associated control equipment. Its current-limiting design reduces the thermal energy passed into the protected circuit, helping minimise equipment damage and downtime.
As an aM partial-range fuse-link, the FR22AM69V50 must be used alongside a suitable overload protection device. When correctly coordinated, this arrangement provides effective short-circuit protection while allowing the elevated current required during normal motor starting.
Typical Applications
- Motor starters and contactor assemblies.
- Industrial motor control panels.
- Motor control centres.
- Pumps, fans and compressors.
- Conveyor and material handling systems.
- Manufacturing and processing machinery.
- Industrial automation equipment.
- OEM machine-building applications.
