MERSEN FUSE NH 0 40A 690V AM NH0AM69V40

Q: What is the current rating of this fuse?

The Mersen NH0AM69V40 has a 40 A rated current.

Q: What voltage is this fuse suitable for?

This fuse-link is rated for operation on 690 V AC systems.

Mersen NH0AM69V40 DIN NH0 aM fuse-link rated at 40 A and 690 V AC, designed for industrial motor circuit short-circuit protection with double indicator and live gripping lugs.

SKU: NH0AM69V40Alt SKU: NH0AM69V40MPN: S227877

List Price £15.64 ex VAT

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Manufacturer Lead Time

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Why Choose the Mersen NH0AM69V40 NH Fuse-Link?

The Mersen NH0AM69V40 is a high-performance DIN NH aM fuse-link designed to provide reliable short-circuit protection for motor circuits and industrial electrical installations. Manufactured by Mersen, this NH0 size fuse is engineered for demanding low voltage power distribution applications where dependable protection and long service life are essential.

Part of the proven Mersen NH aM 690 V AC fuse-link series, the NH0AM69V40 features live gripping lugs and a double indicator, enabling fast visual inspection and safer fuse replacement. Its robust construction ensures consistent performance in industrial environments while helping to protect motors, switchgear and electrical equipment from damaging fault currents.

Rated at 40 A with a 690 V AC operating voltage, this NH0 fuse-link is specifically intended for motor circuit protection where short-circuit protection is required alongside separate overload protection.

Key Advantages

Designed for industrial motor circuit protection.
40 A current rating for reliable electrical protection.
690 V AC rated voltage suitable for industrial power systems.
NH0 size for compatibility with standard DIN NH fuse bases.
Double indicator enables rapid identification of operated fuse-links.
Live gripping lugs simplify safe fuse handling and replacement.

Key Features

Mersen NH aM fuse-link series.
40 A rated current.
690 V AC rated voltage.
DIN NH0 size construction.
aM operating class for motor circuit short-circuit protection.
Double indicator for visual fuse status indication.
Live gripping lugs for safer installation and removal.
Designed for industrial low voltage distribution systems.

Reliable Protection for Industrial Motor Circuits

The Mersen NH0AM69V40 is designed to protect motors and associated equipment against high fault currents. As an aM class fuse-link, it provides excellent short-circuit protection while allowing motor starting currents to pass without nuisance operation when used alongside appropriate overload protection devices.

Its robust NH construction, double indication system and live gripping lugs make it a dependable choice for industrial control panels, switchboards and motor control centres where equipment reliability and maintenance efficiency are essential.

Typical Applications

Motor control centres (MCCs).
Industrial switchboards.
Electrical distribution panels.
Machine building and OEM equipment.
Industrial automation systems.
Manufacturing and process industries.

Technical Specifications

Current	40 A
Voltage	690 V
Manufacturer	Mersen
Series	NH aM Fuse-links
Model	NH0AM69V40
Product type	NH aM fuse-link
Rated current	40 A
Rated voltage	690 V AC
Fuse size	NH0
Operating class	aM
Frequency	50 / 60 Hz
Indicator	Double indicator
Connection type	Live gripping lugs
Standards	DIN NH / IEC
Application	Motor circuit short-circuit protection
RoHS compliant	Yes
HS Code	85361050
Country of Manufacture	Hungary
Device Type	Fuse link
Fuse Type	NH (DIN)
Fuse Size	NH0
Fuse Class	aM

Frequently Asked Questions

What is the Mersen NH0AM69V40 used for?

It is an NH aM fuse-link designed to provide short-circuit protection for industrial motor circuits and electrical equipment.

What is the current rating of this fuse?

The Mersen NH0AM69V40 has a 40 A rated current.

What voltage is this fuse suitable for?

This fuse-link is rated for operation on 690 V AC systems.

What does the aM utilisation category mean?

aM fuse-links provide short-circuit protection for motor circuits and are intended to be used together with separate overload protection devices.

What is the benefit of the double indicator?

The double indicator provides a clear visual indication when the fuse has operated, helping speed up maintenance and fault finding.

Trusted for Industrial Electrical Protection

Mersen NH fuse-links are trusted worldwide by panel builders, industrial electricians and OEM manufacturers for dependable motor protection, reliable performance and compliance with international low voltage standards.

UK delivery

Delivery options

Free UK delivery on orders over £200 ex VAT. Order in-stock items before 2pm Monday to Friday for next-day delivery.

This product Lead time on request

Please contact us for a delivery time before you order

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£8 ex VAT · free over £200

UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.

Heavier items may be charged at a weight-based or pallet rate, shown at checkout.

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Please allow 15–30 minutes after ordering for us to prepare your order.

Northern Ireland, ROI & export

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Delivery is calculated at checkout based on your destination.

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Changed your mind or ordered the wrong item? Request a return within 30 days of receipt. There is no restocking charge.

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We will review the issue and arrange an appropriate resolution under our terms and conditions and your statutory rights.

Made-to-order items

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Manufactured, configured and special-order products can only be returned with the manufacturer’s approval. Any handling charge is agreed with you when you request the return.

This does not affect claims for faulty goods or items that do not meet the agreed specification.

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Send your order number, product details and reason for return. For faults or delivery damage, include photographs if available. We will confirm the next steps.

Email returns team 01706 242050

The 30-day return request period applies to change-of-mind returns for stocked items. It does not limit your statutory rights for faulty or non-conforming goods.

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