Why Choose the Mersen NH2AM69V40 Motor Protection Fuse-Link?
The Mersen NH2AM69V40 is a high-performance DIN NH aM fuse-link designed to provide reliable short-circuit protection for motor circuits in industrial electrical installations. As part of the proven Mersen NH aM 690 V AC fuse-link series, it is specifically engineered to protect motors, contactors, starters and associated switchgear while allowing the high inrush currents generated during motor starting.
Featuring a specialised aM operating characteristic, the NH2AM69V40 delivers rapid fault interruption during short-circuit conditions while operating alongside an overload relay or motor protection circuit breaker for complete motor protection. Its ceramic body, double indication system and live gripping lugs provide dependable performance, straightforward installation and simplified maintenance.
With a rated current of 40 A, a rated voltage of 690 V AC and a standard NH Size 2 construction, the NH2AM69V40 is ideal for industrial motor control centres, machinery, conveyors, pumps, compressors and automation systems requiring dependable motor circuit protection.
Key Advantages
- Purpose-designed aM fuse characteristic for motor short-circuit protection.
- 40 A rated current for industrial motor applications.
- 690 V AC rated voltage.
- 80 kA breaking capacity for dependable fault interruption.
- Allows normal motor starting currents without nuisance operation.
- Double indicator provides rapid visual identification after fuse operation.
- Compatible with standard DIN NH Size 2 fuse bases.
Key Features
- Mersen NH aM 690 V AC fuse-link series.
- DIN NH Size 2.
- 40 A rated current.
- 690 V AC rated voltage.
- Partial-range aM operating characteristic.
- Double fuse operation indicator.
- Live gripping lugs.
- 52 mm body width.
- Ceramic insulating body.
- RoHS compliant.
Reliable Short-Circuit Protection for Motor Circuits
The Mersen NH2AM69V40 is engineered to interrupt high fault currents before they can damage motors, motor starters, contactors and associated electrical equipment. Its specialised aM characteristic allows it to withstand normal motor inrush currents while delivering rapid interruption during severe short-circuit faults.
As an aM fuse-link provides partial-range protection, it should always be used together with a correctly selected overload relay or motor protection circuit breaker to provide complete protection against sustained overload currents.
Typical Applications
- Industrial electric motor protection.
- Motor control centres.
- Motor starters and contactor assemblies.
- Pumps and compressors.
- Conveyor systems.
- Industrial machinery.
- OEM automation equipment.
