Why Choose the Mersen FR10AM40V25 Cylindrical Fuse Link?
The Mersen FR10AM40V25 is a compact and dependable 10 × 38 mm cylindrical aM fuse link designed to protect industrial motor circuits and associated electrical equipment against damaging short-circuit currents. Rated at 25 A and 400 V AC, it is suitable for motor starters, machinery panels and industrial control systems.
As part of the Mersen FR10 ferrule fuse-link range, the FR10AM40V25 uses an aM partial-range operating characteristic. This enables the fuse to tolerate the temporary inrush currents associated with motor starting while rapidly interrupting severe fault currents that could damage cables, contactors, switchgear and connected machinery.
The fuse features a durable ceramic body and silver-plated copper ferrule contacts for dependable electrical performance. Its high 120 kA AC breaking capacity, effective current limitation and compact cylindrical construction make it a reliable choice for coordinated motor circuit protection in demanding industrial environments.
Key Advantages
- Reliable short-circuit protection for industrial motor circuits.
- 25 A rated current for motor control and machinery applications.
- 400 V AC rated voltage suitable for industrial electrical systems.
- High 120 kA AC breaking capacity for effective fault interruption.
- Current-limiting performance helps reduce thermal and mechanical stress.
- Compact 10 × 38 mm cylindrical format supports straightforward installation and replacement.
Key Features
- Mersen FR10 aM cylindrical fuse-link series.
- 25 A rated current.
- 400 V AC IEC rated voltage.
- aM partial-range operating characteristic.
- 120 kA AC breaking capacity.
- Compact 10 × 38 mm fuse size.
- Robust ceramic body for dependable industrial operation.
- Silver-plated copper ferrule contacts for reliable conductivity.
Reliable Short-Circuit Protection for Motor Circuits
An aM fuse link is specifically designed to provide partial-range protection for motor circuits. The Mersen FR10AM40V25 allows normal motor starting currents to pass while rapidly limiting and interrupting high short-circuit currents that could otherwise cause serious damage to electrical equipment.
Because an aM fuse does not provide complete overload protection, it should normally be coordinated with a suitable thermal or electronic overload relay. The overload device protects the motor against sustained overcurrent conditions, while the fuse provides rapid protection against severe short-circuit faults.
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.
- Electrical loads with high starting or inrush currents.
