Why Choose the Mersen NH1AM50V315P-2 NH Fuse Link?
The Mersen NH1AM50V315P-2, manufacturer item number A200790, is a high-performance NH1 aM fuse link designed to provide reliable short-circuit protection for motors, contactors and industrial power circuits. As part of Mersen’s NH fuse-link range, it combines a robust ceramic body, silver-plated copper blade contacts and a high breaking capacity for dependable operation in demanding low-voltage installations.
Rated at 315 A and 500 V AC, this DIN-standard NH fuse link features an aM operating characteristic. This classification makes it particularly suitable for motor circuits where overload protection is provided separately, while the fuse delivers rapid and effective protection against high fault currents.
The NH1AM50V315P-2 incorporates live gripping tags and a striker indication system, allowing its operating status to be detected visually or used with compatible auxiliary signalling equipment. With a maximum AC breaking capacity of 120 kA, it is suitable for industrial switchgear, motor control centres and machinery with high prospective fault-current levels.
Key Advantages
- High-performance NH1 aM motor circuit fuse link.
- 315 A current rating for heavy-duty industrial applications.
- 500 V AC rated operating voltage.
- High 120 kA AC breaking capacity.
- Integrated striker provides clear fuse-operation indication.
- Silver-plated copper blade contacts support reliable electrical conductivity.
- Robust ceramic body provides excellent heat resistance and insulation.
- Suitable for coordinated motor short-circuit protection.
Key Features
- Mersen NH fuse-link series.
- Manufacturer item number: A200790.
- NH1 fuse size.
- aM operating characteristic.
- 315 A rated current.
- 500 V AC rated voltage.
- 120 kA maximum AC breaking capacity.
- Striker-type indication system.
- Live gripping tags.
- Plain silver-plated copper blade terminals.
- Clip-mounted plug-in construction.
- RoHS compliant.
Reliable Short-Circuit Protection for Motor Circuits
An aM fuse link is designed primarily to protect motor circuits against short circuits rather than sustained overloads. The Mersen NH1AM50V315P-2 can tolerate the temporary inrush currents associated with motor starting while responding rapidly to severe fault currents that could damage cables, contactors, motors or switchgear.
For complete motor protection, the fuse should be coordinated with a suitable overload relay, motor protection device or circuit breaker. The integrated striker can also support remote status indication or automatic operation of compatible switchgear when the fuse has interrupted a fault.
Typical Applications
- Industrial motor control centres.
- Motor starters and contactor assemblies.
- Pumps, compressors and ventilation systems.
- Conveyors and material-handling equipment.
- Manufacturing and process machinery.
- Industrial switchboards and distribution panels.
- OEM machinery and automation equipment.
- High fault-level low-voltage power circuits.
