Why Choose the Mersen FR22AM50V125 Cylindrical Fuse Link?
The Mersen FR22AM50V125 is a premium 22 × 58 mm aM cylindrical fuse link designed to provide dependable short-circuit protection for motors, motor starters and industrial equipment operating on 500 V AC systems. Rated at 125 A, it is ideal for protecting high-power motor circuits in industrial automation, manufacturing and electrical distribution applications.
As part of the trusted Mersen FR22 aM fuse-link series, the FR22AM50V125 is engineered specifically for motor protection. Its partial-range aM operating characteristic allows normal motor starting currents to pass while rapidly interrupting damaging short-circuit faults, helping to protect motors, contactors and associated switchgear.
Manufactured with a robust ceramic body and silver-plated copper ferrule contacts, this fuse delivers excellent current-limiting performance and reliable operation in demanding industrial environments. The standard version is supplied without a striker and fits compatible 22 × 58 mm cylindrical fuse holders.
Key Advantages
- Reliable short-circuit protection for industrial motor circuits.
- 125 A rated current for high-power motor applications.
- 500 V AC IEC rated voltage.
- 120 kA AC breaking capacity for dependable fault interruption.
- aM partial-range characteristic designed for motor protection.
- Compact 22 × 58 mm cylindrical format for standard fuse holders.
Key Features
- Mersen FR22 aM cylindrical fuse-link series.
- 125 A rated current.
- 500 V AC rated voltage.
- aM motor protection characteristic.
- 120 kA rated AC breaking capacity.
- High current-limiting capability.
- Low thermal let-through during fault conditions.
- Ceramic insulating body.
- Silver-plated copper ferrule contacts.
- Manufactured to IEC 60269.
Reliable Protection for High-Power Motor Circuits
The Mersen FR22AM50V125 is engineered for industrial circuits supplying motors and other inductive loads that generate high inrush currents. Its aM operating characteristic permits these temporary currents while rapidly disconnecting dangerous short-circuit faults before they can damage valuable equipment.
For complete motor protection, this fuse should be coordinated with an appropriate overload relay or electronic motor protection device. This combination provides comprehensive protection against overloads and severe fault currents while helping maximise equipment reliability.
Typical Applications
- Industrial motor control centres.
- High-power motor starters.
- Motor protection switchgear.
- Industrial control panels.
- Pumps, compressors and conveyors.
- Manufacturing machinery.
- OEM automation equipment.
