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MERSEN FUSE NH 2 250A 500V AM NH2AM50V250
Mersen NH2AM50V250 DIN NH2 aM motor protection fuse-link rated at 250 A and 500 V AC with a 120 kA breaking capacity, double indicator and live gripping lugs.
£12.04
Why Choose the Mersen NH2AM50V250 Motor Protection Fuse-Link?
The Mersen NH2AM50V250 is a high-performance DIN NH aM fuse-link designed to provide reliable short-circuit protection for motors, motor starters and industrial power circuits. Featuring a specialised aM operating characteristic, it allows normal motor starting currents while rapidly disconnecting high fault currents to protect valuable electrical equipment.
Part of Mersen's NH aM 500 V AC fuse-link range, the NH2AM50V250 delivers excellent current-limiting performance and high fault interruption capability. Its ceramic body, silver-plated blade contacts and double indication system provide dependable long-term operation whilst simplifying maintenance in demanding industrial environments.
Rated at 250 A and 500 V AC, this NH2 fuse-link features live gripping lugs, double indication and standard NH blade contacts. As an aM fuse-link, it provides short-circuit protection only and must always be installed with a suitable overload protection device such as a thermal overload relay or motor protection circuit breaker.
Key Advantages
- Purpose-designed aM motor protection fuse-link.
- 250 A rated current for industrial motor circuits.
- 500 V AC rated operating voltage.
- 120 kA AC breaking capacity for dependable fault interruption.
- Current-limiting design protects contactors, cables and switchgear.
- Double indicator enables rapid identification of an operated fuse-link.
- Low power dissipation improves operating efficiency.
Key Features
- Mersen NH aM 500 V AC fuse-link series.
- DIN NH2 fuse size.
- 250 A rated current.
- 500 V AC rated voltage.
- aM partial-range operating characteristic.
- 120 kA AC breaking capacity.
- Double fuse operation indicator.
- Live gripping lugs.
- Silver-plated copper blade terminals.
- Durable ceramic insulating body.
- 52 mm body width.
Reliable Short-Circuit Protection for Motor Circuits
Motor circuits produce high inrush currents during starting that conventional full-range fuse-links may not tolerate. The Mersen NH2AM50V250 is specifically engineered to withstand these temporary starting currents whilst providing rapid interruption of severe short-circuit faults, helping protect motors and associated electrical equipment.
Because this is an aM partial-range fuse-link, it must always be combined with correctly selected overload protection. Together, the fuse-link and overload relay provide complete protection for industrial motors and motor starter assemblies.
Typical Applications
- Industrial motor starter circuits.
- Motor control centres.
- Contactors with thermal overload relays.
- Pumps, compressors and conveyor systems.
- Industrial machinery and manufacturing equipment.
- NH2 fuse bases and fuse-switch disconnectors.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Indication | Dual indicator | |
|---|---|---|
| Current | 250 A | |
| Voltage | 500 V | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH2 | |
| Fuse Class | aM | |
| Manufacturer | Mersen | |
| Series | NH aM 500 V AC Fuse-Links | |
| Model | NH2AM50V250 | |
| Manufacturer part number | K232516 | |
| Product type | DIN NH motor protection fuse-link | |
| Utilisation category | aM | |
| Fuse size | NH2 | |
| Rated current | 250 A | |
| Rated voltage | 500 V AC | |
| Breaking capacity | 120 kA AC | |
| Protection range | Short-circuit protection only | |
| Indicator | Double indicator | |
| Gripping lugs | Live gripping lugs | |
| Terminal type | Plain blades | |
| Body width | 52 mm | |
| Power dissipation at rated current | 16.8 W | |
| Weight | Approx. 0.64 kg | |
| EAN | 8430399026855 | |
| Compliance | IEC 60269, RoHS, CE and UKCA | |
| HS Code | 85361090 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH2AM50V250 used for?
It provides short-circuit protection for motors and motor starter circuits operating on low-voltage electrical systems.
What is the rated current of this fuse-link?
The Mersen NH2AM50V250 has a rated current of 250 A.
What does the aM classification mean?
The aM classification identifies a partial-range motor protection fuse-link designed to withstand motor starting currents whilst providing rapid short-circuit protection. Separate overload protection is required.
What fuse size is the NH2AM50V250?
This product is a DIN NH2 fuse-link for installation in compatible NH2 fuse bases and fuse-switch disconnectors.
Does this fuse-link provide overload protection?
No. The NH2AM50V250 provides short-circuit protection only and must be used together with a suitable overload relay or motor protection circuit breaker.
Trusted Motor Circuit Protection from Mersen
Mersen NH aM fuse-links are trusted worldwide by electrical engineers, OEMs and panel builders for reliable motor short-circuit protection, high fault interruption capability and dependable long-term performance.
