Why Choose the Mersen NH0AM69V25 NH Fuse-Link?
The Mersen NH0AM69V25 is a high-performance DIN NH aM fuse-link designed specifically for short-circuit protection in industrial motor circuits. Manufactured by Mersen, this NH size 0 fuse-link provides strong current-limiting performance whilst allowing normal motor starting currents to pass without unnecessary operation.
As part of the proven Mersen NH aM 690 V fuse-link series, the NH0AM69V25 features a durable ceramic body, silver-plated copper blade contacts, live gripping lugs and a double indication system. Its standard NH construction allows installation in compatible NH fuse bases within motor control centres, switchboards and industrial machinery panels.
With a rated current of 25 A, a rated operating voltage of 690 V AC and an 80 kA AC breaking capacity, the NH0AM69V25 provides dependable protection against high fault currents. As an aM fuse-link, it must be combined with a suitable overload protection device to provide complete motor circuit protection.
Key Advantages
- Purpose-designed aM fuse-link for motor circuit short-circuit protection.
- 25 A rated current for industrial motor applications.
- 690 V AC rated voltage for demanding electrical systems.
- High 80 kA AC breaking capacity for reliable fault interruption.
- Strong current-limiting performance helps protect contactors, cables and motor starters.
- Double indicator enables quick identification of an operated fuse-link.
Key Features
- Mersen NH aM 690 V fuse-link series.
- DIN NH size 0 construction.
- 25 A rated current.
- 690 V AC rated voltage.
- aM partial-range characteristic for motor circuit protection.
- Live gripping lugs for use with a suitable NH fuse puller.
- Double fuse status indication system.
- Ceramic body with silver-plated copper blade contacts.
Reliable Motor Circuit Protection
aM fuse-links are partial-range protective devices developed for motor circuits. They interrupt high short-circuit currents whilst tolerating the temporary inrush currents that occur when motors start, helping prevent nuisance fuse operation during normal machine operation.
The NH0AM69V25 provides short-circuit protection only and must be coordinated with a thermal overload relay, motor protection circuit breaker or another suitable overload device. This combination provides effective protection for motors, contactors, cables and associated switching equipment.
Typical Applications
- Industrial motor control centres.
- Direct-on-line and reversing motor starters.
- Industrial switchboards and control panels.
- Pumps, fans and conveyor motor circuits.
- Manufacturing and processing machinery.
- OEM automation and machine-building applications.
