Why Choose the Mersen FR22AM69V63 Cylindrical Fuse-Link?
The Mersen FR22AM69V63 is a high-performance aM cylindrical fuse-link designed to provide dependable short-circuit protection for motors, motor starters and associated industrial electrical equipment. Manufactured by Mersen, it forms part of the established 22 × 58 mm IEC ferrule fuse range for demanding low-voltage motor control applications.
Its aM partial-range operating characteristic allows the fuse to tolerate the temporary inrush currents produced during motor starting while rapidly interrupting dangerous short-circuit currents. It should be coordinated with a suitable overload protection device, such as a thermal overload relay or motor protection circuit breaker, to provide comprehensive motor circuit protection.
Rated at 63 A and 690 V AC, the FR22AM69V63 offers reliable current limitation and high fault interruption performance. Its ceramic body and silver-plated contacts support dependable operation in motor control centres, industrial switchgear, control panels and OEM machinery.
Key Advantages
- Purpose-designed for motor circuit short-circuit protection.
- 63 A rated current for demanding industrial motor applications.
- 690 V AC IEC rated voltage.
- High current-limiting performance helps reduce fault damage.
- Compact 22 × 58 mm cylindrical format.
- Ceramic construction and silver-plated contacts support long-term reliability.
Key Features
- Mersen FR22AM69V63 cylindrical fuse-link.
- aM utilisation category for motor circuit protection.
- 63 A rated current.
- 690 V AC rated voltage.
- 22 × 58 mm IEC cylindrical size.
- Partial-range protection against short-circuit currents.
- High current limitation with low thermal let-through.
- Ceramic body with silver-plated contacts.
- Non-striker version for compatible cylindrical fuse holders.
Reliable Short-Circuit Protection for Motor Circuits
Industrial motors can draw several times their normal running current during start-up. The aM characteristic of the Mersen FR22AM69V63 allows these temporary starting currents to pass without unnecessary operation while providing rapid, current-limiting protection when a severe short circuit occurs.
As an aM partial-range fuse, the FR22AM69V63 does not provide overload protection throughout the complete overcurrent range. It should therefore be installed with a correctly selected overload relay or motor protection device to protect the motor, conductors, contactors and associated switching equipment.
Typical Applications
- Industrial motor starters.
- Motor control centres.
- Contactors and overload relay assemblies.
- Industrial switchgear.
- Machine building and OEM equipment.
- Pumps, fans, conveyors and processing machinery.
