Why Choose the Mersen NH4AM69V630P-2 NH Fuse-Link?
The Mersen NH4AM69V630P-2 is a heavy-duty DIN NH aM fuse-link with striker designed specifically for the short-circuit protection of high-power industrial motor circuits. Manufactured by Mersen, this NH Size 4 fuse-link delivers exceptional current-limiting performance whilst allowing normal motor starting currents to pass without nuisance operation, making it ideal for demanding industrial motor protection applications.
Part of the trusted Mersen NH aM 500-690 V fuse-link series with striker, the NH4AM69V630P-2 features a robust ceramic body, live gripping lugs and an integrated striker mechanism for operation with compatible switch-fuse systems. Manufactured in accordance with IEC standards, it is suitable for motor control centres, industrial switchboards, OEM machinery and heavy-duty automation systems.
With a 630 A rated current, 690 V AC operating voltage and a 120 kA AC breaking capacity, the NH4AM69V630P-2 provides dependable protection for large industrial motors and high-current installations where exceptional fault interruption capability is essential.
Key Advantages
- Purpose-designed DIN NH Size 4 aM fuse-link with striker for motor circuit protection.
- 630 A rated current for high-power industrial motor applications.
- 690 V AC rated operation.
- 120 kA AC breaking capacity for dependable fault interruption.
- Integrated striker enables operation of compatible switchgear and fuse monitoring systems.
- Excellent current-limiting performance whilst allowing normal motor starting currents.
Key Features
- Mersen NH aM 500-690 V fuse-link series with striker.
- DIN NH Size 4.
- 630 A rated current.
- 690 V AC rated voltage.
- aM utilisation category for motor circuit protection.
- Integrated striker indication system.
- Live gripping lugs.
- Ceramic body with silver-plated copper blade contacts.
Reliable Motor Circuit Protection
aM fuse-links are partial-range protective devices developed specifically for motor circuits. They tolerate the temporary inrush currents generated during motor starting whilst rapidly interrupting high short-circuit currents, protecting motors, contactors, starters and associated equipment from severe electrical faults.
The NH4AM69V630P-2 should always be used together with an appropriate overload relay or motor protection device. This coordinated protection arrangement provides reliable protection for heavy-duty industrial machinery, manufacturing equipment and large automation systems.
Typical Applications
- Heavy-duty motor control centres.
- Large industrial motor starters.
- High-power pumps, compressors and fans.
- Industrial switchboards.
- OEM machinery.
- Heavy industrial automation systems.
