MERSEN FUSE A 070 URD 32 LI 0900 A070URD32LI0900

Engineered for reliable circuit protection in demanding industrial applications, this Protistor® high-speed fuse ensures rapid interruption of short-circuit currents up to 900A at voltages of 690VAC (IEC) and 700VAC (UL). The slotted blade design and integrated striker guarantee straightforward installation and secure mechanical indication of fuse operation.

SKU: R300211Alt SKU: A070UD32LI900MPN: R300211

List Price £225.58 ex VAT

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£225.58

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Manufacturer Lead Time

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Why Choose the Mersen R300211 Industrial Electrical Component?

The Mersen R300211 is a genuine Mersen industrial electrical component designed for professional maintenance, repair and replacement applications. It is identified by the precise manufacturer reference R300211, helping engineers, purchasing teams and maintenance professionals source the correct component for compatible electrical equipment.

Mersen specialises in electrical protection, power management and industrial safety solutions. Choosing an original Mersen component helps maintain system reliability and supports accurate replacement of installed equipment where the R300211 part number is specified.

The Mersen R300211 is suitable for use within industrial machinery, electrical control panels and power distribution equipment subject to confirmation of its technical ratings and physical compatibility. Before installation, the full product markings, electrical specifications, terminal arrangement and mounting requirements should be checked against current Mersen documentation and the original equipment details.

Key Advantages

Genuine Mersen industrial electrical component.
Clearly identified by manufacturer reference R300211.
Suitable for professional maintenance and replacement projects.
Supports accurate component identification and procurement.
Manufactured by an established electrical protection specialist.
Suitable for engineers, OEMs, panel builders and maintenance teams.

Key Features

Mersen branded industrial component.
Manufacturer part number R300211.
Designed for professional electrical applications.
Suitable for replacing an installed component with the same reference.
Supports planned maintenance and equipment refurbishment.
Manufacturer-specific identification simplifies spare-parts management.
Intended for installation by suitably qualified personnel.
Compatible with equipment specifically requiring Mersen R300211.

Reliable Component Identification for Industrial Systems

Industrial electrical equipment often requires replacement components to match an exact manufacturer reference. Using the correct part number helps ensure that the selected component has the appropriate electrical characteristics, dimensions, connections and mounting arrangement for the intended system.

Before fitting the Mersen R300211, engineers should compare the complete markings on the original component with the equipment manual and current manufacturer documentation. Voltage, current, installation method, terminal layout and system compatibility should all be verified before commissioning.

Typical Applications

Industrial electrical maintenance.
Machinery servicing and repair.
Electrical control panel refurbishment.
Power distribution equipment maintenance.
OEM equipment replacement projects.
Industrial spare-parts inventories.

Technical Specifications

Item number	R300211
Catalogue No	A070UD32LI900
Description	Square Body High-Speed Fuse Protistor® Size 32 aR 690VAC IEC 700VAC UL 900A With Striker Slotted Blades long
EAN/UPC Code	3605340325003
Rated voltage AC UL	700 V
Rated voltage AC IEC	690 V
Ampere Rating	900 A
RoHS Compliant	Yes
AC or DC	AC
Speed/Characteristic	aR
Fuse Size	32
Mounting	Bolted
Clearing I2t At Rated Voltage	990 kA²s
Melting I2t	170 kA²s
AC Max I.R./Breaking Capacity	I1: 200 kA
Indication System	Yes
Indication System Type	Striker
Connection/Terminal Material	Silver-Plated Copper
Connection/Terminal Type	Slotted Blades
Product Width	59 mm
Product Length	153 mm
Product Height	65 mm
Sell Pack Quantity	3 EA
Sell Pack Weight	2.2299 kg
Sell Pack Width	160 mm
Sell Pack Length	195 mm
Sell Pack Height	72 mm
Product group	Semiconductor Protection Fuses
Body/Insulating Material	Ceramic
Product Weight	0.7433 kg
Power Dissipation at Rated Current Value	125 W
HS Code	85361090
Country of Manufacture	France
Fuse Type	Semiconductor
Fuse Class	aR
Voltage	690 V

Frequently Asked Questions

What is the Mersen R300211?

The R300211 is a Mersen industrial electrical component identified by its manufacturer-specific part number. Its exact configuration and ratings should be confirmed using current Mersen technical documentation.

How can I confirm that the R300211 is compatible with my equipment?

Compare the complete part number and product markings with the existing component, equipment manual, electrical drawings and current Mersen documentation.

Can the R300211 replace a component with a different part number?

A component with a different reference should only be used when its electrical ratings, dimensions, terminals and manufacturer-approved compatibility have been fully verified.

Who should install the Mersen R300211?

Installation should be carried out by a suitably qualified electrical engineer or technician following the applicable isolation and electrical safety procedures.

Where is this component typically used?

The R300211 may be used in industrial machinery, electrical panels, power distribution equipment and maintenance applications where this exact Mersen reference is specified.

Trusted Industrial Electrical Solutions

Mersen products are used by engineers, OEM manufacturers, panel builders and maintenance professionals to support reliable electrical protection, power management and industrial equipment operation.

Item number	R300211
Catalogue No	A070UD32LI900
Description	Square Body High-Speed Fuse Protistor® Size 32 aR 690VAC IEC 700VAC UL 900A With Striker Slotted Blades long
EAN/UPC Code	3605340325003
Rated voltage AC UL	700 V
Rated voltage AC IEC	690 V
Ampere Rating	900 A
RoHS Compliant	Yes
AC or DC	AC
Speed/Characteristic	aR
Fuse Size	32
Mounting	Bolted
Clearing I2t At Rated Voltage	990 kA²s
Melting I2t	170 kA²s
AC Max I.R./Breaking Capacity	I1: 200 kA
Indication System	Yes
Indication System Type	Striker
Connection/Terminal Material	Silver-Plated Copper
Connection/Terminal Type	Slotted Blades
Product Width	59 mm
Product Length	153 mm
Product Height	65 mm
Sell Pack Quantity	3 EA
Sell Pack Weight	2.2299 kg
Sell Pack Width	160 mm
Sell Pack Length	195 mm
Sell Pack Height	72 mm
Product group	Semiconductor Protection Fuses
Body/Insulating Material	Ceramic
Product Weight	0.7433 kg
Power Dissipation at Rated Current Value	125 W
HS Code	85361090
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.

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

● frequently asked questions

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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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