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MERSEN FUSE NH 0 200A 500V AM NH0AM50V200
Mersen NH0AM50V200 DIN NH0 aM motor protection fuse-link rated at 200 A and 500 V AC, with a 120 kA breaking capacity, double indicator and live gripping tags.
£9.11
Why Choose the Mersen NH0AM50V200 NH Motor Protection Fuse?
The Mersen NH0AM50V200 is a high-performance DIN NH aM fuse-link designed to provide short-circuit protection for motors, motor starters and associated switching equipment. With a 200 A rated current, a 500 V AC voltage rating and an aM utilisation category, it is suitable for demanding industrial motor circuits where high starting currents must be accommodated without unnecessary fuse operation.
Manufactured in the standard NH0 blade-contact format, the NH0AM50V200 installs into compatible NH fuse bases and switch-fuse assemblies. Its partial-range aM characteristic is specifically designed for motor circuit protection, delivering rapid interruption of short-circuit currents while allowing normal motor starting and acceleration currents.
The fuse incorporates live gripping tags, a double visual indicator and silver-plated copper blade terminals. Its robust ceramic construction and high 120 kA AC breaking capacity provide dependable fault interruption in motor control centres, industrial switchboards and machinery installations.
Key Advantages
- Designed specifically for motor circuit short-circuit protection.
- 200 A rated current for high-current motor applications.
- 500 V AC voltage rating for industrial electrical systems.
- aM characteristic accommodates normal motor starting currents.
- 120 kA AC breaking capacity for reliable fault interruption.
- Double visual indicator supports rapid identification of an operated fuse.
Key Features
- Mersen NH aM fuse-link range.
- NH0 fuse size.
- 200 A rated current.
- 500 V AC rated voltage.
- aM partial-range motor protection characteristic.
- 120 kA maximum AC breaking capacity.
- Double visual indication system.
- Live gripping tags.
- Silver-plated copper blade terminals.
- Durable ceramic insulating body.
Reliable Short-Circuit Protection for Motor Circuits
Industrial motors can draw several times their normal operating current during starting. The Mersen NH0AM50V200 uses an aM time-current characteristic that allows these temporary starting currents to pass while rapidly interrupting severe short-circuit currents that could damage motors, contactors, cables and switching equipment.
As an aM partial-range fuse-link, the NH0AM50V200 provides short-circuit protection rather than complete overload protection. It should therefore be coordinated with a suitable overload relay, motor protection circuit breaker or electronic motor protection device to provide comprehensive protection for the motor circuit.
Typical Applications
- Industrial motor starter circuits.
- Motor control centres.
- Contactors and switching equipment.
- Industrial pumps, fans and compressors.
- Manufacturing and processing machinery.
- OEM control panels and switchgear assemblies.
Technical Specifications
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| Current | 200 A | |
|---|---|---|
| Voltage | 500 V | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH0 | |
| Fuse Class | aM | |
| Manufacturer | Mersen | |
| Series | NH Fuse-links aM 500 V AC | |
| Model | NH0AM50V200 | |
| Manufacturer item number | A227884 | |
| Product type | DIN NH motor protection fuse-link | |
| Fuse size | NH0 | |
| Rated current | 200 A | |
| Rated voltage | 500 V AC | |
| Current type | AC | |
| Utilisation category | aM | |
| Maximum AC breaking capacity | 120 kA | |
| Indicator type | Double indicator | |
| Gripping tags | Live gripping tags | |
| Terminal type | Plain blades | |
| Terminal material | Silver-plated copper | |
| Body material | Ceramic | |
| Dimensions (W × L × H) | 30 × 125 × 61 mm | |
| Power dissipation at rated current | 11.8 W | |
| Approximate weight | 0.26 kg | |
| EAN | 8430399025018 | |
| RoHS compliant | Yes | |
| HS Code | 85361090 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH0AM50V200 used for?
The Mersen NH0AM50V200 is designed to provide short-circuit protection for industrial motors, motor starters and associated switching equipment.
What is the rated current of this fuse?
The NH0AM50V200 has a rated current of 200 A.
What voltage is the NH0AM50V200 rated for?
The fuse is rated for operation on electrical systems up to 500 V AC.
What does the aM utilisation category mean?
The aM characteristic provides partial-range short-circuit protection for motor circuits while allowing normal motor starting currents. Separate overload protection is required.
What is the breaking capacity of this fuse?
The NH0AM50V200 has a maximum AC breaking capacity of 120 kA.
Trusted for Industrial Motor Protection
Mersen NH motor protection fuse-links are widely specified by electrical engineers, panel builders and machine manufacturers for dependable short-circuit protection of motors and industrial switching equipment.
