MERSEN FUSE NH 1 250A 500V GG SGL NH1GG50V250-1

Q: What is the current rating of this fuse?

The NH1GG50V250-1 has a 250 A rated current.

Q: What voltage is this fuse designed for?

This fuse is rated for operation on systems up to 500 V AC and 250 V DC.

Mersen NH1GG50V250-1 DIN NH1 gG fuse link rated at 250 A, 500 V AC and 250 V DC with double indication and isolated gripping lugs for industrial circuit protection.

SKU: NH1GG50V250-1Alt SKU: NH1GG50V250-1MPN: E218251

List Price £19.07 ex VAT

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£19.07

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Manufacturer Lead Time

£19.07

Why Choose the Mersen NH1GG50V250-1 NH Fuse Link?

The Mersen NH1GG50V250-1 is a premium DIN NH gG low voltage fuse link designed to provide dependable protection for industrial electrical distribution systems, switchgear and power circuits. Manufactured by Mersen, this NH fuse delivers full-range protection against overloads and short circuits, helping safeguard cables, feeders and electrical equipment operating in demanding industrial environments.

Designed in accordance with IEC and DIN NH standards, the NH1GG50V250-1 features a 250 A rated current, 500 V AC operating voltage, 250 V DC rating and an NH1 size body. It incorporates a double blown-fuse indicator together with isolated gripping lugs, allowing rapid identification of an operated fuse while improving maintenance safety.

Ideal for industrial switchboards, distribution panels, machine control systems and commercial electrical installations, the NH1GG50V250-1 provides full-range gG protection, ensuring reliable operation and effective fault isolation in demanding low voltage applications.

Key Advantages

Industrial DIN NH gG fuse link for comprehensive circuit protection.
250 A current rating suitable for industrial power distribution.
500 V AC and 250 V DC ratings for industrial electrical systems.
Full-range gG protection against overloads and short circuits.
Double indicator enables rapid identification of an operated fuse.
Isolated gripping lugs improve maintenance safety.

Key Features

Mersen NH gG fuse link series.
Catalogue number: NH1GG50V250-1.
Item number: E218251.
NH1 fuse size.
250 A rated current.
500 V AC rated voltage.
250 V DC rated voltage.
120 kA AC breaking capacity.
Double blown-fuse indication.
Isolated gripping lugs.

Reliable Protection for Industrial Power Systems

The gG utilisation category provides complete protection against both overloads and short circuits, making the NH1GG50V250-1 suitable for protecting cables, switchgear, feeders and general electrical equipment. Its current-limiting characteristics help minimise equipment damage during fault conditions while maintaining reliable system performance.

Mersen NH fuse links are trusted worldwide by electrical engineers, panel builders and maintenance professionals thanks to their robust construction, high interrupting capacity and compliance with recognised international standards.

Typical Applications

Industrial power distribution systems.
Electrical switchboards.
Distribution panels.
Machine control panels.
Cable and feeder protection.
Commercial and industrial electrical installations.

Technical Specifications

Current	250 A
Voltage	500 V
Manufacturer	Mersen
Series	NH gG Fuse Links
Model	NH1GG50V250-1
Item number	E218251
Product type	DIN NH fuse link
Fuse size	NH1
Utilisation category	gG
Rated current	250 A
Rated AC voltage	500 V AC
Rated DC voltage	250 V DC
Breaking capacity	120 kA AC
Power dissipation	20 W
Indicator	Double indicator
Gripping lugs	Isolated
Body width	40 mm
Weight	Approx. 0.42 kg
EAN	8430399001968
RoHS compliant	Yes
HS Code	85361090
Country of Manufacture	Hungary
Device Type	Fuse link
Fuse Type	NH (DIN)
Fuse Size	NH1
Fuse Class	gG

Frequently Asked Questions

What is the Mersen NH1GG50V250-1 used for?

This NH fuse link protects industrial electrical circuits, cables and equipment against overloads and short circuits.

What is the current rating of this fuse?

The NH1GG50V250-1 has a 250 A rated current.

What voltage is this fuse designed for?

This fuse is rated for operation on systems up to 500 V AC and 250 V DC.

What does the gG classification mean?

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

What is the benefit of the double indicator?

The integrated double indicator allows maintenance personnel to quickly identify when the fuse has operated, helping reduce downtime during servicing.

Trusted for Industrial Circuit Protection

Mersen NH fuse links are trusted worldwide by electrical engineers, panel builders and OEM manufacturers to provide dependable protection for industrial power distribution and electrical infrastructure.

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

Standard delivery

£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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Mon–Fri, 8am–5pm

Order and pay online, then collect from our showroom.

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

Northern Ireland, ROI & export

Priced at checkout

We deliver to Northern Ireland, the Republic of Ireland and overseas.

Delivery is calculated at checkout based on your destination.

Orders with mixed availability

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If part of your order is on a lead time, we hold it and send everything together.

Need the in-stock items sooner? Ask us and we can split the delivery.

Business customer returns

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Stocked items

Request within 30 days

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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Tell us as soon as possible

Faulty, damaged on delivery or the wrong product supplied? Contact our team as soon as possible with the details.

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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