MERSEN FUSE USGM3I USGM3I

Q: What fuse type does the USGM3I accept?

The fuse holder accepts 10 × 38 mm Midget fuses rated up to 30 A.

Q: How is the USGM3I installed?

The fuse holder clips directly onto a standard 35 mm DIN rail and uses maintenance-free WAGO CAGE CLAMP® spring pressure terminals for rapid wiring.

Mersen USGM3I UltraSafe 3-pole Midget fuse holder with LED blown fuse indication, WAGO CAGE CLAMP spring pressure terminals, DIN rail mounting and IP20 finger-safe protection.

SKU: USGM3IMPN: USGM3I

List Price £32.38 ex VAT

Your Price (ex VAT)

£32.38

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SUBTOTAL (EX VAT) £32.38

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Manufacturer Lead Time

£32.38

Why Choose the Mersen USGM3I UltraSafe™ Midget Fuse Holder?

The Mersen USGM3I is a premium 3-pole Midget fuse holder with integrated LED indication from the UltraSafe™ USGM series, engineered to provide dependable overcurrent protection in industrial control panels, power distribution equipment and automation systems. Designed for 10 × 38 mm Midget fuses up to 30 A, it combines advanced safety features with maintenance-free spring pressure terminal technology for fast installation and reliable long-term performance.

The integrated LED blown fuse indication provides immediate visual identification of an operated fuse, allowing maintenance personnel to quickly locate faults and minimise machine downtime. Its compact DIN rail mounted construction and IP20 finger-safe design make it ideal for modern industrial electrical panels.

Featuring industry-proven WAGO CAGE CLAMP® spring pressure terminals, the USGM3I delivers secure, vibration-resistant electrical connections without terminal screws, reducing installation time while providing maintenance-free operation throughout the product's service life.

Key Advantages

Designed for 10 × 38 mm Midget fuses up to 30 A.
3-pole configuration for three-phase circuits.
Integrated LED blown fuse indication for rapid fault identification.
Maintenance-free WAGO CAGE CLAMP® spring pressure terminals.
IP20 finger-safe construction enhances operator safety.
Compact DIN rail mounting reduces panel space requirements.
Reliable vibration-resistant electrical connections.

Key Features

Mersen UltraSafe™ USGM series.
30 A maximum current rating.
600 V AC / 600 V DC UL rated.
3-pole modular construction.
Integrated LED blown fuse indication.
WAGO CAGE CLAMP® spring pressure terminals.
35 mm DIN rail mounting.
IP20 finger-safe protection.
Quick tool-free fuse replacement.
RoHS compliant polyamide housing.

Efficient Protection for Three-Phase Industrial Systems

The Mersen USGM3I has been developed to improve both installation efficiency and maintenance within modern industrial control panels. The spring pressure terminal technology eliminates terminal screw tightening while providing secure, corrosion-resistant and vibration-proof electrical connections for demanding industrial environments.

Its integrated LED indication provides immediate visual confirmation when a fuse has operated, allowing maintenance engineers to identify faults quickly and restore equipment with minimal downtime. The compact modular design is ideal for automation systems, machinery and power distribution applications.

Typical Applications

Three-phase industrial control panels.
OEM machinery.
Motor control centres.
Power distribution equipment.
Industrial automation systems.
Power electronics.
Transformer protection.
Manufacturing and process equipment.

Technical Specifications

Phase	Three Phase
Manufacturer	Mersen
Series	UltraSafe™ USGM
Model	USGM3I
Product type	Midget fuse holder with LED indication
Fuse class	Midget (10 × 38 mm)
Number of poles	3
Current rating	30 A
Rated voltage	600 V AC / 600 V DC (UL)
Frequency	50 / 60 Hz
Short-circuit current rating	200 kA SCCR
Connection type	WAGO CAGE CLAMP® spring pressure terminals
Mounting type	35 mm DIN rail
Protection rating	IP20 finger-safe
Housing material	High-performance polyamide
Weight	Approx. 0.195 kg
HS Code	85369095
Country of Manufacture	China
Poles	3-pole
Device Type	Fuse base / holder
Voltage	600 V

Frequently Asked Questions

What is the Mersen USGM3I used for?

The USGM3I provides safe mounting and protection for three Midget fuses in industrial control panels, automation equipment and electrical distribution systems.

What is the benefit of the LED indicator?

The integrated LED provides a clear visual indication when a fuse has operated, helping maintenance personnel identify faults quickly and reduce downtime.

What fuse type does the USGM3I accept?

The fuse holder accepts 10 × 38 mm Midget fuses rated up to 30 A.

How is the USGM3I installed?

The fuse holder clips directly onto a standard 35 mm DIN rail and uses maintenance-free WAGO CAGE CLAMP® spring pressure terminals for rapid wiring.

Where is the USGM3I commonly used?

It is widely used in industrial automation, machinery, motor control centres, power distribution systems and OEM electrical panels.

Trusted by Industrial Panel Builders Worldwide

Mersen UltraSafe™ fuse holders are trusted by OEM machine builders, control panel manufacturers and industrial engineers worldwide for reliable circuit protection, rapid installation and enhanced electrical safety.

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.

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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

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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.

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

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