MERSEN FUSE NH 3 315A 690V AM NH3AM69V315

MERSEN FUSE NH 3 315A 690V AM NH3AM69V315

Mersen NH3AM69V315 NH3 size aM fuse-link rated at 315 A and 690 V AC for industrial motor short-circuit protection with double indicator and live gripping lugs.

SKU: NH3AM69V315Alt SKU: NH3AM69V315MPN: F227981
Price
List Price £76.00 ex VAT
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£76.00
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Manufacturer Lead Time

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Why Choose the Mersen NH3AM69V315 NH Fuse-Link?

The Mersen NH3AM69V315 is a high-performance DIN NH aM fuse-link engineered to provide dependable short-circuit protection for motors, motor starters and industrial electrical equipment. Part of Mersen's proven NH fuse-link aM 690 V AC series, it is designed for demanding industrial installations requiring high breaking capacity and reliable fault protection.

Designed specifically for motor circuits, this NH3 size fuse-link features an aM utilisation category, making it suitable for protecting motors against short-circuit faults when used alongside appropriate overload protection devices. Its ceramic body, double indicator and live gripping lugs allow safe handling, fast identification of operated fuses and dependable long-term performance.

With a 315 A current rating, 690 V AC voltage rating and NH3 body size, the NH3AM69V315 is ideal for motor control centres, switchboards, industrial machinery, OEM equipment and power distribution systems requiring reliable circuit protection.

Key Advantages

  • Designed for industrial motor short-circuit protection.
  • 315 A rated current for high-power motor applications.
  • 690 V AC IEC rated voltage.
  • aM characteristic specifically developed for motor circuits.
  • Double indicator enables rapid fuse status identification.
  • Live gripping lugs provide safer installation and replacement.

Key Features

  • Mersen NH fuse-link aM series.
  • Catalogue number: NH3AM69V315.
  • NH3 fuse size.
  • 315 A current rating.
  • 690 V AC rated voltage.
  • aM utilisation category.
  • High rupturing capacity ceramic fuse construction.
  • Double indicator with live gripping lugs.
  • DIN NH blade contact design.
  • RoHS compliant.

Reliable Protection for Industrial Motor Circuits

The Mersen NH3AM69V315 is designed to interrupt high fault currents rapidly, helping protect motors, switchgear and associated equipment from damage caused by short circuits. When combined with suitable overload protection, it delivers dependable protection for demanding industrial motor installations.

Its NH3 construction, high current capacity and robust ceramic design make it well suited to heavy-duty industrial environments including manufacturing plants, process industries, motor control centres and OEM machinery.

Typical Applications

  • Motor control centres (MCCs).
  • Industrial motor starters.
  • Power distribution switchboards.
  • OEM machinery and equipment.
  • Industrial automation systems.
  • Heavy manufacturing facilities.

Technical Specifications

Current 315 A
Voltage 690 V
Manufacturer Mersen
Series NH Fuse-links aM 690 VAC
Model NH3AM69V315
Item number F227981
Product type NH aM fuse-link
Fuse size NH3
Rated current 315 A
Rated voltage 690 V AC
Utilisation category aM
Body width 71.9 mm
Power dissipation 21 W
Weight Approx. 1.05 kg
Indicator Double indicator
Terminal type Live gripping lugs
Compliance IEC / RoHS
HS Code 85361090
Country of Manufacture Hungary
Device Type Fuse link
Fuse Type NH (DIN)
Fuse Size NH3
Fuse Class aM

Frequently Asked Questions

What is the Mersen NH3AM69V315 used for?

The NH3AM69V315 provides short-circuit protection for industrial motor circuits and should be used alongside appropriate overload protection devices.

What is the current rating of this fuse-link?

This model has a 315 A rated current.

What voltage is the fuse rated for?

The NH3AM69V315 is rated for operation on systems up to 690 V AC.

What does the aM utilisation category mean?

aM fuse-links are intended for motor short-circuit protection and require separate overload protection for complete motor circuit protection.

What are the benefits of the double indicator?

The double indicator provides clear visual identification of an operated fuse, helping reduce maintenance time and simplify troubleshooting.

Trusted by Industrial Electrical Professionals

Mersen NH fuse-links are trusted by panel builders, OEMs and maintenance engineers worldwide for dependable motor protection, high fault breaking performance and compliance with international electrical standards.

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