Why Choose the Mersen FR8AM40V8 Cylindrical Fuse Link?
The Mersen FR8AM40V8 is a compact 8 × 32 mm aM cylindrical fuse link designed to provide dependable short-circuit protection for motor circuits, industrial switchgear and electrical equipment with high starting currents. As part of the established Mersen FR8 aM ferrule fuse series, it offers reliable current limitation for low-voltage industrial applications.
Its aM operating characteristic allows temporary motor starting currents to pass while interrupting unacceptable short-circuit currents before they can damage cables, contactors and connected equipment. As an aM partial-range fuse, it should be used alongside a correctly selected thermal or electronic overload relay to provide complete motor circuit protection.
With a rated current of 8 A, a rated voltage of 400 V AC and a compact cylindrical format, the FR8AM40V8 is suitable for motor starters, machinery and industrial control panels. Its ceramic body and silver-plated contacts provide robust construction and consistent electrical performance.
Key Advantages
- Purpose-designed aM fuse link for motor circuit protection.
- 8 A rated current for industrial motors and inductive loads.
- 400 V AC IEC rating for low-voltage installations.
- Allows normal motor starting and equipment inrush currents to pass.
- High current-limiting performance helps reduce fault energy.
- Compact 8 × 32 mm cylindrical format for compatible fuse holders.
Key Features
- Mersen FR8 aM ferrule fuse series.
- 8 × 32 mm cylindrical fuse link.
- 8 A rated current.
- 400 V AC rated voltage.
- aM partial-range motor protection characteristic.
- Non-indicating configuration.
- Ceramic insulating body.
- Silver-plated ferrule contacts.
Reliable Short-Circuit Protection for Motor Circuits
The Mersen FR8AM40V8 is engineered to protect motor circuits and associated switchgear against damaging short-circuit currents. Its aM time-current characteristic tolerates the temporary inrush current produced during motor starting while providing effective current limitation when a serious electrical fault occurs.
Because the FR8AM40V8 is a partial-range fuse link, it primarily provides short-circuit protection rather than sustained overload protection. It should therefore be installed as part of a coordinated motor protection system incorporating a suitable overload relay or equivalent protective device.
Typical Applications
- Industrial motor starter circuits.
- Motor control panels.
- Low-current motor circuits.
- Industrial machinery and production equipment.
- OEM automation systems.
- Industrial switchgear and control equipment.
