MERSEN FUSE 6,9 URD 30 TT F 0050 PC30UD69V50TF

Q: Is S300373 the manufacturer part number?

Yes. S300373 is the manufacturer reference used to identify this Mersen industrial electrical component.

Q: Who should install the Mersen S300373?

The component should be installed by a suitably qualified electrical professional in accordance with the equipment instructions and applicable electrical regulations.

The PC30UD69V50TF fuse delivers ultra-fast protection for semiconductors with a 50A rating, high breaking capacity, and compliance with IEC and UL standards. Features include striker indication, flush end silver-plated brass terminals, and a ceramic body.

SKU: S300373Alt SKU: PC30UD69V50TFMPN: S300373

List Price £70.08 ex VAT

Your Price (ex VAT)

£70.08

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

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Manufacturer Lead Time

£70.08

Why Choose the Mersen S300373 Industrial Electrical Component?

The Mersen S300373 is a specialist industrial electrical protection component intended for use in professional power distribution, machinery and electrical control applications. Manufactured by Mersen, it provides a clearly identifiable replacement option for engineers, maintenance teams and equipment owners requiring the specific S300373 manufacturer reference.

Accurate component selection is essential when maintaining electrical protection systems. Matching the original manufacturer part number helps preserve equipment compatibility, dependable operation and the intended performance of the installation. The S300373 reference also simplifies procurement and replacement-part identification during planned maintenance or equipment repairs.

The Mersen S300373 is suitable for demanding industrial environments where reliable electrical components are required. Before installation, users should confirm its electrical ratings, physical configuration and compatibility against the original component, equipment documentation or current Mersen technical information.

Key Advantages

Genuine Mersen industrial electrical protection component.
Clearly identified by manufacturer reference S300373.
Suitable for maintenance, repair and replacement applications.
Designed for professional industrial electrical systems.
Supports accurate component matching and equipment compatibility.
Manufactured by an established electrical protection specialist.

Key Features

Mersen manufacturer part number S300373.
Industrial-grade design for professional electrical applications.
Suitable for electrical protection and power distribution equipment.
Applicable to machinery, control panels and automation systems.
Designed for OEM replacement and maintenance requirements.
Dedicated product reference simplifies accurate identification.
Suitable for installation by qualified electrical personnel.
Compatibility and ratings should be verified before installation.

Reliable Performance for Industrial Electrical Systems

Industrial electrical protection components help maintain the dependable operation of machinery, control systems and power distribution equipment. Correctly specified components can reduce the risk of equipment damage, support safe isolation and minimise disruption caused by unexpected electrical faults.

The Mersen S300373 carries a dedicated manufacturer reference that allows engineers and purchasing teams to identify the required component accurately. Its part number, physical format and electrical characteristics should be checked carefully before installation to ensure that it is suitable for the intended system.

Typical Applications

Industrial electrical control panels.
Power distribution and protection equipment.
Manufacturing and production machinery.
Automation and process-control systems.
Maintenance, repair and overhaul operations.
OEM equipment and replacement-part applications.

Technical Specifications

Item number	S300373
Catalogue No	PC30UD69V50TF
Description	Square Body High-Speed Fuse Protistor® Size 30 aR 690VAC IEC 700VAC UL 50A With Striker Flush ends metric threads
EAN/UPC Code	3605340327489
Rated voltage AC UL	700 V
Rated voltage AC IEC	690 V
Ampere Rating	50 A
RoHS Compliant	Yes
AC or DC	AC
Speed/Characteristic	aR
Fuse Size	30
Mounting	Bolted
Clearing I2t At Rated Voltage	0.68 kA²s
Melting I2t	0.116 kA²s
AC Max I.R./Breaking Capacity	I1: 200 kA
Indication System	Yes
Indication System Type	Striker
Connection/Terminal Material	Silver-Plated Brass
Connection/Terminal Type	Flush ends
Product Width	40 mm
Product Length	50.6 mm
Product Height	48 mm
Sell Pack Quantity	3 EA
Sell Pack Weight	0.7389 kg
Sell Pack Width	85 mm
Sell Pack Length	135 mm
Sell Pack Height	55 mm
Product group	Semiconductor Protection Fuses
Body/Insulating Material	Ceramic
Product Weight	0.2463 kg
Power Dissipation at Rated Current Value	9 W
HS Code	85361050
Country of Manufacture	France
Fuse Type	Semiconductor
Fuse Class	aR
Voltage	690 V

Frequently Asked Questions

What is the Mersen S300373 used for?

The Mersen S300373 is intended for use in professional industrial electrical systems, including protection, control, machinery and power distribution applications.

Is S300373 the manufacturer part number?

Yes. S300373 is the manufacturer reference used to identify this Mersen industrial electrical component.

How can I confirm compatibility with my equipment?

Compare the S300373 reference, physical configuration and electrical ratings with the original component, equipment manual or current Mersen technical documentation.

Who should install the Mersen S300373?

The component should be installed by a suitably qualified electrical professional in accordance with the equipment instructions and applicable electrical regulations.

Where is this component typically installed?

It may be installed within industrial control panels, machinery, automation systems or power distribution equipment requiring the corresponding Mersen part reference.

Trusted Electrical Protection Expertise

Mersen components are used in professional electrical systems where accurate product selection, dependable performance and reliable equipment protection are essential.

Item number	S300373
Catalogue No	PC30UD69V50TF
Description	Square Body High-Speed Fuse Protistor® Size 30 aR 690VAC IEC 700VAC UL 50A With Striker Flush ends metric threads
EAN/UPC Code	3605340327489
Rated voltage AC UL	700 V
Rated voltage AC IEC	690 V
Ampere Rating	50 A
RoHS Compliant	Yes
AC or DC	AC
Speed/Characteristic	aR
Fuse Size	30
Mounting	Bolted
Clearing I2t At Rated Voltage	0.68 kA²s
Melting I2t	0.116 kA²s
AC Max I.R./Breaking Capacity	I1: 200 kA
Indication System	Yes
Indication System Type	Striker
Connection/Terminal Material	Silver-Plated Brass
Connection/Terminal Type	Flush ends
Product Width	40 mm
Product Length	50.6 mm
Product Height	48 mm
Sell Pack Quantity	3 EA
Sell Pack Weight	0.7389 kg
Sell Pack Width	85 mm
Sell Pack Length	135 mm
Sell Pack Height	55 mm
Product group	Semiconductor Protection Fuses
Body/Insulating Material	Ceramic
Product Weight	0.2463 kg
Power Dissipation at Rated Current Value	9 W
HS Code	85361050
Country of Manufacture	France
Fuse Type	Semiconductor
Fuse Class	aR
Voltage	690 V

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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£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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Delivery is calculated at checkout based on your destination.

Orders with mixed availability

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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.

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.

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