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MERSEN FUSE FUS. AM NH1 C/P 250A NH1AM69V250P-2
Mersen NH1AM69V250P-2 NH Size 1 aM fuse link rated at 250 A and 690 V AC with live gripping tags and integrated striker indicator for motor circuit protection.
£26.68
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.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Current | 250 A | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH1 | |
| Fuse Class | aM | |
| Voltage | 690 V | |
| Manufacturer | Mersen | |
| Series | NH Fuse-links aM 500–690 VAC with striker | |
| Model | NH1AM69V250P-2 | |
| Item Number | T223002 | |
| EAN | 8430399012797 | |
| Product Type | NH aM Low Voltage Fuse Link | |
| Fuse Size | NH1 | |
| Rated Current | 250 A | |
| Rated Voltage | 690 V AC | |
| Utilisation Category | aM | |
| Breaking Capacity | 80 kA AC | |
| Power Dissipation | 21.5 W | |
| Indicator | Striker | |
| Gripping Tags | Live gripping tags | |
| Body Width | 44.6 mm | |
| Weight | Approx. 0.38 kg | |
| Mounting | NH fuse base / blade contact | |
| RoHS Compliant | Yes | |
| Standards | IEC 60269, DIN NH | |
| HS Code | 85361090 |
Frequently Asked Questions
What is the Mersen NH1AM69V250P-2 used for?
It provides dedicated short-circuit protection for industrial motor circuits and should be used alongside an appropriate overload protection device.
What is the rated current of this fuse?
The NH1AM69V250P-2 has a rated current of 250 A.
What does the aM operating characteristic mean?
The aM classification is intended for motor circuit protection, allowing normal motor starting currents while providing high-performance short-circuit protection.
What voltage is this fuse rated for?
The fuse is designed for operation on systems up to 690 V AC.
What is the purpose of the striker indicator?
The integrated striker provides a clear indication when the fuse has operated, helping maintenance personnel quickly identify and replace the fuse.
Trusted by Industrial Motor Control Professionals
Mersen NH aM fuse links are trusted by electrical engineers, OEMs, switchgear manufacturers and maintenance professionals for providing reliable motor circuit short-circuit protection in demanding industrial applications.
