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MERSEN FUSE NH 4A 1000A 500V AM NH4AAM50V1000-8
Mersen NH4AAM50V1000-8 NH4a aM low voltage fuse-link rated at 1000 A and 500 V AC for industrial motor protection and electrical distribution systems.
£111.11
Why Choose the Mersen NH4AAM50V1000-8 NH Fuse-Link?
The Mersen NH4AAM50V1000-8 is a high-performance NH aM low voltage fuse-link engineered to provide dependable short-circuit protection for motors, motor starters and industrial electrical distribution systems. Manufactured to IEC NH standards, this fuse-link is designed for demanding industrial environments where high fault interruption capability and reliable protection are essential.
As part of the trusted Mersen NH fuse-link aM 500 VAC series, the NH4AAM50V1000-8 delivers outstanding protection against high fault currents while allowing motors to withstand normal starting currents. Featuring live gripping lugs and a top-mounted indicator, it enables safer installation, inspection and replacement during maintenance operations.
Rated at 1000 A with a 500 V AC operating voltage, this NH4a size fuse-link is ideal for switchgear, motor control centres, industrial machinery, manufacturing plants and heavy-duty power distribution equipment requiring dependable motor circuit protection.
Key Advantages
- Designed for motor short-circuit protection using aM characteristics.
- 1000 A current rating for heavy industrial applications.
- 500 V AC IEC rated voltage.
- High breaking capacity for enhanced electrical safety.
- Top indicator enables rapid fuse status identification.
- Live gripping lugs simplify safe fuse handling and replacement.
- Manufactured to IEC NH standards for reliable performance.
Key Features
- Mersen NH fuse-link aM series.
- NH4a size fuse-link.
- 1000 A rated current.
- 500 V AC operating voltage.
- aM utilisation category for motor circuit protection.
- Top-mounted operating indicator.
- Live gripping lug design.
- Body width of approximately 100 mm.
- High breaking capacity up to 120 kA.
- Suitable for industrial switchgear and motor control applications.
Reliable Protection for Industrial Motor Circuits
The Mersen NH4AAM50V1000-8 is specifically designed to protect motors and associated equipment against short-circuit faults while allowing the temporary high inrush currents generated during motor starting. This makes it particularly suitable for industrial motor control systems where operational reliability and equipment protection are critical.
Its robust ceramic construction, high interrupting capacity and compliance with IEC NH standards make this fuse-link an ideal choice for demanding industrial power distribution applications across manufacturing, processing and automation industries.
Typical Applications
- Motor control centres (MCCs).
- Industrial switchgear assemblies.
- Heavy-duty manufacturing equipment.
- Electrical distribution panels.
- Industrial automation systems.
- Processing plants and production facilities.
- OEM machinery.
Technical Specifications
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| Current | 1000 A | |
|---|---|---|
| Fuse Indication | Visual indicator | |
| Voltage | 500 V | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH4a | |
| Fuse Class | aM | |
| Manufacturer | Mersen | |
| Series | NH Fuse-links aM 500 VAC | |
| Model | NH4AAM50V1000-8 | |
| Product type | NH low voltage fuse-link | |
| Fuse characteristic | aM | |
| Rated current | 1000 A | |
| Rated voltage | 500 V AC | |
| Frequency | 50 / 60 Hz | |
| Fuse size | NH4a | |
| Indication | Top indicator | |
| Connection type | Live gripping lugs | |
| Body width | 100 mm | |
| Breaking capacity | 120 kA | |
| Weight | Approx. 2.2 kg | |
| Standards | IEC NH | |
| HS Code | 85361090 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH4AAM50V1000-8 used for?
This NH fuse-link provides short-circuit protection for industrial motors and motor control circuits using an aM fuse characteristic.
What is the rated current of this fuse?
The NH4AAM50V1000-8 has a rated current of 1000 A.
What voltage is this fuse designed for?
This fuse-link is designed for use on 500 V AC electrical systems.
What does the aM fuse characteristic mean?
aM fuse-links provide short-circuit protection for motor circuits and are intended to be used alongside overload protection devices such as motor protection relays.
Where is this fuse typically installed?
It is commonly installed within industrial switchgear, motor control centres, electrical distribution panels and heavy-duty machinery.
Trusted for Industrial Power Protection
Mersen NH fuse-links are widely trusted by electrical engineers, OEMs and industrial maintenance professionals for delivering dependable circuit protection, high fault interruption capability and long-term operational reliability.
