MERSEN FUSE 500V NH3 C/P gG 630A NH3GG50V630P-2

Q: What is the current rating of this fuse?

The NH3GG50V630P-2 has a 630 A rated current.

Q: What voltage is this fuse rated for?

This fuse link is designed for operation on systems up to 500 V AC.

Mersen NH3GG50V630P-2 DIN NH3 gG fuse link rated at 630 A and 500 V AC with integrated striker, live gripping tags and 120 kA breaking capacity for industrial circuit protection.

SKU: NH3GG50V630P-2Alt SKU: NH3GG50V630P-2MPN: Q219802

List Price £100.21 ex VAT

Your Price (ex VAT)

£100.21

Manufacturer Lead Time Please contact us for a delivery time before you order

Get the best trade prices Trade exclusive

Create a trade account to unlock exclusive pricing, special offers and more.

Quantity:

SUBTOTAL (EX VAT) £100.21

Trade pricing is personalised to your account

Manufacturer Lead Time

£100.21

Why Choose the Mersen NH3GG50V630P-2 NH Fuse Link?

The Mersen NH3GG50V630P-2 is a premium DIN NH gG low voltage fuse link engineered to provide dependable overload and short circuit protection for industrial electrical distribution systems. Manufactured by Mersen, this high-performance fuse is designed for switchgear, power distribution equipment, motor control centres and industrial infrastructure where reliable fault interruption is critical.

Featuring an NH3 fuse size, a 630 A rated current and a 500 V AC operating voltage, the NH3GG50V630P-2 offers exceptional protection for high-current electrical installations. The integrated striker mechanism provides mechanical indication when the fuse operates and can be used with compatible switch-fuse and remote signalling systems for enhanced maintenance efficiency.

Built with a robust ceramic body and live gripping tags, this fuse link delivers a high 120 kA AC breaking capacity, making it ideal for protecting transformers, busbars, cables and heavy industrial equipment operating under demanding electrical conditions.

Key Advantages

Industrial DIN NH gG fuse link providing full-range circuit protection.
630 A rated current for high-power electrical distribution systems.
500 V AC operating voltage for industrial installations.
120 kA breaking capacity for reliable fault interruption.
Integrated striker for rapid fuse operation indication.
Suitable for protecting cables, switchgear, transformers and industrial machinery.

Key Features

Mersen NH gG fuse-link series with striker.
NH3 fuse size.
630 A rated current.
500 V AC rated voltage.
120 kA AC breaking capacity.
General purpose gG utilisation category.
Integrated striker indication.
Live gripping tags.
Ceramic insulating body.
Manufactured to IEC/DIN NH standards.

Reliable Protection for Industrial Electrical Systems

NH gG fuse links provide comprehensive protection against overloads and high prospective short circuit currents, helping to safeguard valuable industrial equipment while reducing downtime and maintenance costs. Their high interrupting capacity makes them suitable for demanding power distribution applications.

The Mersen NH3GG50V630P-2 is widely specified by electrical engineers, OEMs and panel builders requiring dependable low voltage protection that complies with recognised international standards.

Typical Applications

Industrial power distribution systems.
Electrical switchgear assemblies.
Motor control centres.
Transformer protection.
Heavy industrial machinery.
Commercial and industrial electrical infrastructure.

Technical Specifications

Current	630 A
Voltage	500 V
Manufacturer	Mersen
Series	NH gG Fuse Links with Striker
Model	NH3GG50V630P-2
Item number	Q219802
Product type	DIN NH fuse link
Fuse size	NH3
Utilisation category	gG
Rated current	630 A
Rated voltage	500 V AC
Rated breaking capacity	120 kA AC
Power dissipation	47 W
Body width	approximately 69 mm
Weight	approximately 0.87 kg
Gripping tags	Live
Indication system	Striker
Compliance	RoHS compliant
HS Code	85361090
Country of Manufacture	Hungary
Device Type	Fuse link
Fuse Type	NH (DIN)
Fuse Size	NH3
Fuse Class	gG

Frequently Asked Questions

What is the Mersen NH3GG50V630P-2 used for?

It protects industrial electrical distribution systems, cables, transformers and equipment against overloads and short circuit faults.

What is the current rating of this fuse?

The NH3GG50V630P-2 has a 630 A rated current.

What voltage is this fuse rated for?

This fuse link is designed for operation on systems up to 500 V AC.

What does the striker mechanism do?

The integrated striker provides mechanical indication when the fuse operates and can activate compatible signalling or switching accessories.

What does the gG classification mean?

The gG utilisation category identifies a full-range fuse capable of protecting electrical circuits against both overloads and short circuits.

Trusted for Industrial Circuit Protection

Mersen NH fuse links are trusted worldwide by electrical engineers, panel builders and industrial maintenance professionals for protecting critical power distribution equipment and 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.

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.

Collect from our showroom

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

Shipped complete

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

Returns & order support

Need to return an item? Find the guidance for your order below, then contact our team before sending anything back.

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.

Items must be unused, in resalable condition and in their original packaging, and returns need our approval first. Return carriage is at your cost, and the original delivery charge is not refunded.

Faulty or damaged items

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

Manufacturer approval needed

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.

LED Controls showroom with electrical products on display

Let’s get your return sorted.

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.

● Service Agreements

Credit Accounts

Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.

Priority sourcing and supply support

Flexible payment terms for qualifying organisations

Support for engineering, maintenance, and operations

500 +

Stock lines ready to ship

1,000 +

Same day dispatches

3500 +

Customers supported

28 Trusted Manfacturers

● frequently asked questions

Common questions about our products and support

At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.

What product ranges do you supply

We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.

Can you help specify the correct part?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

Do you have stock for urgent orders?

What are your delivery times and costs?

What about warranties, returns and faulty items?

● latest blog

Discover our latest insights and
expert advice

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

by admin | Aug 11, 2026 | News

LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.

LED Controls: Danfoss Drives Authorised Partner

by admin | Jan 17, 2026 | Product Spotlight

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...

LED Controls: Your Complete Control Panel Solution