Why Choose the Mersen FR22AM69V40P Cylindrical Fuse Link?
The Mersen FR22AM69V40P is a reliable 22 × 58 mm cylindrical aM fuse link designed to protect industrial motor circuits against damaging short-circuit currents. Rated at 40 A and 690 V AC, it is suitable for use in demanding electrical installations, motor control panels and industrial machinery.
As part of the Mersen ferrule fuse-link range, this fuse combines effective current limitation with low thermal energy let-through. Its aM utilisation category provides partial-range protection specifically intended for motor circuits, where overload protection is normally provided by a separate thermal or electronic overload relay.
The FR22AM69V40P features a durable ceramic body, silver-plated contacts and an integrated striker. The striker can operate a compatible auxiliary contact or signalling device when the fuse has opened, helping maintenance teams identify faults quickly and reduce equipment downtime.
Key Advantages
- Reliable short-circuit protection for motor circuits.
- 40 A rated current for industrial motor and machinery applications.
- 690 V AC voltage rating suitable for demanding electrical systems.
- Integrated striker for fuse-operation indication or auxiliary contact activation.
- High current-limiting performance helps reduce thermal and mechanical stress.
- Standard 22 × 58 mm cylindrical format supports straightforward installation and replacement.
Key Features
- Mersen FR22 aM ferrule fuse-link series.
- 40 A rated current.
- 690 V AC rated voltage.
- aM partial-range fuse characteristic.
- Standard 22 × 58 mm cylindrical dimensions.
- Integrated striker for use with compatible signalling accessories.
- Robust ceramic body for dependable industrial performance.
- Silver-plated ferrule contacts for reliable electrical connection.
Reliable Short-Circuit Protection for Motor Circuits
An aM fuse link is designed to provide partial-range protection against high short-circuit currents in motor circuits. It should be coordinated with a suitable overload relay or motor protection device, which protects the motor against sustained overload conditions that are below the fuse operating range.
The Mersen FR22AM69V40P limits the peak current and thermal energy passed during a fault, helping protect contactors, cables, motor starters and other electrical equipment. Its integrated striker also supports remote fuse-status indication when installed with a compatible fuse holder and auxiliary contact.
Typical Applications
- Industrial motor starters and control panels.
- Motor control centres and switchgear assemblies.
- Pumps, fans and compressor circuits.
- Conveyors and material handling equipment.
- Manufacturing and processing machinery.
- Industrial electrical distribution systems.
