Why Choose the Mersen NH3AM50V315 NH Fuse-Link?
The Mersen NH3AM50V315 is a high-performance DIN NH aM fuse-link specifically developed for short-circuit protection of industrial motor circuits and associated equipment. Manufactured by Mersen, this NH Size 3 fuse-link provides outstanding current-limiting performance whilst allowing normal motor starting currents to pass without nuisance operation, making it ideal for heavy-duty motor protection applications.
As part of the proven Mersen NH aM 500 V fuse-link series, the NH3AM50V315 features a robust ceramic body, live gripping lugs and a double indication system for rapid identification of an operated fuse-link. Manufactured in accordance with IEC standards, it is suitable for industrial motor control centres, switchboards, OEM machinery and automation systems.
With a 315 A rated current, 500 V AC operating voltage, 250 V DC rating and a 120 kA AC breaking capacity, the NH3AM50V315 delivers dependable protection for large industrial motors and power distribution systems where high fault interruption capability is essential.
Key Advantages
- Purpose-designed DIN NH Size 3 aM fuse-link for motor circuit protection.
- 315 A rated current for high-power industrial motor applications.
- 500 V AC / 250 V DC rated operation.
- 120 kA AC breaking capacity for dependable fault interruption.
- Double indication system enables rapid identification of an operated fuse-link.
- Excellent current-limiting performance whilst allowing normal motor starting currents.
Key Features
- Mersen NH aM 500 V fuse-link series.
- DIN NH Size 3.
- 315 A rated current.
- 500 V AC rated voltage.
- 250 V DC rated voltage.
- aM utilisation category for motor circuit protection.
- Double indication system.
- Live gripping lugs with ceramic body.
Reliable Motor Circuit Protection
aM fuse-links are designed to provide partial-range protection against short circuits in motor circuits. They tolerate normal motor starting currents whilst rapidly interrupting high fault currents, protecting motors, contactors, starters and associated equipment from catastrophic electrical faults.
The NH3AM50V315 should always be used alongside a suitable overload relay or motor protection device, providing a coordinated protection solution for heavy-duty industrial machinery and automation systems.
Typical Applications
- Motor control centres.
- Large industrial motor starters.
- Variable speed drive input protection.
- Industrial switchboards.
- OEM machinery.
- Heavy-duty industrial automation systems.
