Why Choose the Mersen NH1AM69V250P-2 NH Fuse Link?
The Mersen NH1AM69V250P-2 is a high-performance NH Size 1 aM low voltage fuse link specifically designed for the protection of motors, motor starters and associated power circuits against short-circuit faults. Manufactured to DIN NH and IEC standards, this fuse provides dependable high fault-current interruption while allowing motor starting currents to pass without nuisance operation.
Featuring live gripping tags and an integrated striker indicator, the NH1AM69V250P-2 enables rapid identification of an operated fuse and supports safe replacement by qualified personnel. Its high-strength ceramic body and silver-plated blade contacts ensure excellent electrical performance, thermal stability and long operational life in demanding industrial environments.
Rated at 250 A and 690 V AC, this NH Size 1 fuse link is ideal for motor control centres, industrial switchboards, machine tools, pumps, compressors, conveyors and OEM electrical equipment requiring dedicated motor short-circuit protection.
Key Advantages
- aM operating characteristic specifically developed for motor circuit protection.
- 250 A rated current for industrial motor applications.
- 690 V AC rated operating voltage.
- 80 kA breaking capacity for dependable interruption of high fault currents.
- Integrated striker indicator for fast fuse status identification.
- Live gripping tags simplify professional installation and replacement.
Key Features
- Mersen NH aM Fuse Link Series.
- 250 A rated current.
- 690 V AC rated voltage.
- NH Size 1.
- aM utilisation category for motor circuit protection.
- Integrated striker indicator.
- Live gripping tags.
- High-strength ceramic body with silver-plated blade contacts.
Specialised Motor Circuit Protection
Unlike general-purpose gG fuse links, the Mersen NH1AM69V250P-2 uses an aM operating characteristic, making it specifically suited to protecting motors against high prospective short-circuit currents while tolerating the temporary inrush currents experienced during motor starting. It should always be used together with an appropriate overload protection device, such as a motor protection relay.
The integrated striker mechanism provides a clear visual and mechanical indication after operation, simplifying maintenance and reducing downtime. Installation should always be carried out by qualified electrical personnel using an approved NH fuse puller and compatible NH fuse base.
Typical Applications
- Motor control centres (MCCs).
- Industrial electric motor protection.
- Pump and compressor installations.
- Conveyor systems.
- Industrial machinery.
- OEM motor starter panels.
- Manufacturing and processing plants.
