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MERSEN FUSE NH 2 40A 690V AM NH2AM69V40
Mersen NH2AM69V40 DIN NH Size 2 aM fuse-link rated at 40 A and 690 V AC for industrial motor short-circuit protection.
£19.03
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.
Technical Specifications
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| Fuse Indication | Dual indicator | |
|---|---|---|
| Current | 40 A | |
| Voltage | 690 V | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH2 | |
| Fuse Class | aM | |
| Manufacturer | Mersen | |
| Series | NH Fuse-Links aM 690 V AC | |
| Model | NH2AM69V40 | |
| Manufacturer item number | M227964 | |
| EAN | 8430399025193 | |
| Product type | DIN NH motor protection fuse-link | |
| Fuse characteristic | aM | |
| Fuse size | NH2 | |
| Rated current | 40 A | |
| Rated voltage | 690 V AC | |
| Breaking capacity | 80 kA | |
| Power dissipation | 2.1 W | |
| Indicator | Double indicator | |
| Gripping lugs | Live gripping lugs | |
| Body width | 52 mm | |
| Weight | Approx. 0.64 kg | |
| Current type | AC | |
| Compliance | IEC 60269, RoHS compliant | |
| HS Code | 85361050 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH2AM69V40 used for?
The NH2AM69V40 provides short-circuit protection for industrial motor circuits, starters, contactors and associated switchgear.
What is the rated current of this fuse-link?
The Mersen NH2AM69V40 has a rated current of 40 A.
What voltage is the NH2AM69V40 rated for?
This fuse-link is rated for operation at up to 690 V AC.
What does the aM fuse characteristic mean?
The aM characteristic is designed for motor short-circuit protection and must be used together with a suitable overload protection device.
Does this fuse-link include an operation indicator?
Yes. The NH2AM69V40 features a double indication system for quick visual confirmation after the fuse has operated.
Trusted by Industrial Engineers Worldwide
Mersen NH aM fuse-links are trusted by machine builders, electrical engineers and maintenance professionals for dependable motor short-circuit protection, high fault interruption capability and reliable long-term performance.
