MERSEN FUSE NH 2C 125A 400V GG NH2GG40V125

Q: What is the current rating of this fuse?

This NH fuse-link has a 125 A rated current.

Q: What voltage is the NH2GG40V125 designed for?

The fuse is rated for operation on 400 V AC electrical systems.

Mersen NH2GG40V125 DIN NH2 gG fuse-link rated 125 A and 400 V AC with double indicator and live gripping lugs for industrial circuit protection.

SKU: NH2GG40V125Alt SKU: NH2GG40V125MPN: H223728

List Price £19.17 ex VAT

Your Price (ex VAT)

£19.17

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Manufacturer Lead Time

£19.17

Why Choose the Mersen NH2GG40V125 NH Fuse-Link?

The Mersen NH2GG40V125 is a high-performance DIN NH gG low voltage fuse-link designed to provide dependable overload and short-circuit protection for industrial electrical distribution systems. Manufactured by Mersen, this NH2 fuse-link delivers reliable full-range protection for cables, switchgear and general electrical equipment operating in demanding commercial and industrial environments.

Part of the trusted Mersen NH gG 400 V AC fuse-link series, the NH2GG40V125 features a 125 A current rating, 400 V AC operating voltage, double blown-fuse indication and live gripping lugs. These features allow rapid fault identification and safe replacement using an approved NH fuse puller.

Designed to IEC NH standards, this fuse-link offers excellent current-limiting performance and dependable circuit protection. Its 40 mm body width makes it suitable for installation in compatible NH2 fuse bases within industrial switchboards, motor control centres and low voltage distribution panels.

Key Advantages

High-quality NH2 DIN fuse-link for industrial power distribution.
125 A current rating for dependable circuit protection.
400 V AC operating voltage.
Full-range gG utilisation category protects cables and equipment.
Double indicator provides rapid identification of operated fuses.
Live gripping lugs enable safe replacement.
100 kA breaking capacity for demanding fault conditions.
Manufactured in accordance with IEC NH standards.

Key Features

Mersen NH gG 400 VAC fuse-link series.
Catalogue number: NH2GG40V125.
Mersen item number: H223728.
Fuse size: NH2.
Current rating: 125 A.
Rated voltage: 400 V AC.
gG utilisation category.
Double operated-fuse indicator.
Live gripping lugs.
Standard NH blade contacts.
Body width: 40 mm.

Reliable Protection for Industrial Power Systems

The Mersen NH2GG40V125 provides dependable protection against overloads and short-circuit faults, helping safeguard switchgear, cables and electrical equipment throughout industrial and commercial power distribution systems. Its gG operating characteristic delivers full-range protection for general-purpose electrical circuits.

Its standard NH design enables straightforward installation into compatible NH2 fuse bases, whilst the double indicator allows maintenance personnel to quickly identify when replacement is required. Installation and replacement should only be carried out by suitably qualified electrical professionals using an approved NH fuse puller.

Typical Applications

Industrial switchboards.
Power distribution panels.
Motor control centres.
Machine building and OEM equipment.
Cable and feeder circuit protection.
Commercial and industrial electrical installations.

Technical Specifications

Current	125 A
Voltage	400 V
Manufacturer	Mersen
Series	NH Fuse-Links gG 400 VAC
Model	NH2GG40V125
Item number	H223728
Product type	DIN NH standard fuse-link
Fuse size	NH2
Utilisation category	gG
Rated current	125 A
Rated AC voltage	400 V AC
Rated breaking capacity	100 kA AC
Current type	AC
Contact type	Blade contacts
Indicator	Double indicator
Gripping lugs	Live tags
Body width	40 mm
Weight	Approx. 0.42 kg
Power dissipation	10.2 W
EAN	8430399021683
Compliance	RoHS compliant
HS Code	85361090
Country of Manufacture	Hungary
Device Type	Fuse link
Fuse Type	NH (DIN)
Fuse Size	NH2
Fuse Class	gG

Frequently Asked Questions

What is the Mersen NH2GG40V125 used for?

The NH2GG40V125 provides overload and short-circuit protection for industrial electrical distribution systems, cables and general electrical equipment.

What is the current rating of this fuse?

This NH fuse-link has a 125 A rated current.

What voltage is the NH2GG40V125 designed for?

The fuse is rated for operation on 400 V AC electrical systems.

What does the gG classification mean?

The gG utilisation category provides full-range protection against both overload and short-circuit faults for cables and general electrical equipment.

What is the benefit of the double indicator?

The double indicator provides a clear visual indication when the fuse-link has operated, helping reduce maintenance time and system downtime.

Trusted by Electrical Professionals Worldwide

Mersen NH fuse-links are trusted by panel builders, OEMs, electrical contractors and maintenance engineers worldwide for delivering reliable protection in demanding industrial electrical installations.

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.

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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.

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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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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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