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MERSEN FUSE NH 0 25A 690V AM NH0AM69V25
Mersen NH0AM69V25 DIN NH size 0 aM fuse-link rated at 25 A and 690 V AC, providing high current-limiting short-circuit protection for industrial motor circuits.
£9.38
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.
Technical Specifications
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| Fuse Indication | Dual indicator | |
|---|---|---|
| Current | 25 A | |
| Voltage | 690 V | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH0 | |
| Fuse Class | aM | |
| Manufacturer | Mersen | |
| Series | NH aM 690 V Fuse-Links | |
| Model | NH0AM69V25 | |
| Manufacturer part number | P227874 | |
| Product type | DIN NH aM fuse-link | |
| Fuse size | NH0 | |
| Rated current | 25 A | |
| Rated voltage | 690 V AC | |
| Utilisation category | aM | |
| AC breaking capacity | 80 kA | |
| Indication system | Double indicator | |
| Gripping-lug design | Live gripping lugs | |
| Terminal type | Plain blades | |
| Terminal material | Silver-plated copper | |
| Body material | Ceramic | |
| Dimensions (L × W × H) | 125 × 30 × 61 mm | |
| Power dissipation at rated current | 1.3 W | |
| Product weight | Approx. 0.26 kg | |
| Sell pack quantity | 3 | |
| RoHS compliant | Yes | |
| HS Code | 85361050 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH0AM69V25 used for?
The NH0AM69V25 is used to provide short-circuit protection for industrial motors, contactors, starters and associated motor circuit equipment.
What is the current rating of this fuse-link?
The Mersen NH0AM69V25 has a rated current of 25 A.
What voltage is the NH0AM69V25 designed for?
This fuse-link is designed for operation in AC electrical systems rated up to 690 V.
What does the aM utilisation category mean?
The aM category identifies a partial-range fuse-link designed for motor circuit short-circuit protection. It permits normal motor starting currents but does not provide overload protection.
Does this fuse-link require separate overload protection?
Yes. The NH0AM69V25 must be used with a suitable overload relay, motor protection circuit breaker or equivalent protective device.
Trusted by Electrical Professionals Worldwide
Mersen NH aM fuse-links are widely specified by panel builders, OEMs, electrical contractors and maintenance engineers for dependable motor circuit protection in industrial automation and machinery applications.
