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MERSEN FUSE FUS. AM NH4 C/P 630A NH4AM69V630P-2
Mersen NH4AM69V630P-2 DIN NH Size 4 aM fuse-link with striker rated at 630 A and 690 V AC for industrial motor circuit short-circuit protection.
£181.95
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.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Current | 630 A | |
| Device Type | Accessory | |
| Fuse Type | NH (DIN) | |
| Fuse Class | aM | |
| Voltage | 690 V | |
| Manufacturer | Mersen | |
| Series | NH aM 500-690 V Fuse-links with Striker | |
| Model | NH4AM69V630P-2 | |
| Manufacturer part number | Q1000077 | |
| EAN | 3605340452228 | |
| Product type | DIN NH aM fuse-link with striker | |
| Fuse size | NH4 | |
| Rated current | 630 A | |
| Rated voltage | 690 V AC | |
| Utilisation category | aM | |
| AC breaking capacity | 120 kA | |
| Indication system | Striker | |
| Gripping-lug design | Live gripping lugs | |
| Terminal type | Plain blades | |
| Terminal material | Silver-plated copper | |
| Body width | 100 mm | |
| Dimensions (L × H) | Approx. 199.5 × 117 mm | |
| Power dissipation at rated current | 50 W | |
| Product weight | Approx. 2.2 kg | |
| Sell pack quantity | 1 | |
| RoHS compliant | Yes | |
| HS Code | 85361090 |
Frequently Asked Questions
What is the Mersen NH4AM69V630P-2 used for?
This fuse-link provides short-circuit protection for large industrial motor circuits and should be used together with suitable overload protection.
What is the current rating of this fuse?
The NH4AM69V630P-2 has a 630 A rated current.
What voltage is this fuse designed for?
The fuse is designed for operation on systems up to 690 V AC.
What does the aM utilisation category mean?
aM fuse-links provide partial-range protection specifically for motor circuits, protecting against short circuits whilst allowing normal motor starting currents to pass.
What is the purpose of the integrated striker?
The integrated striker provides mechanical indication and can operate compatible switchgear or signalling devices when the fuse-link operates.
Trusted by Electrical Professionals Worldwide
Mersen NH aM fuse-links are trusted by OEMs, panel builders and industrial maintenance engineers for dependable motor circuit protection across industrial automation, manufacturing and power distribution systems.
