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MERSEN FUSE A 070 URD 30 KI 0550 A070URD30KI0550

MERSEN FUSE A 070 URD 30 KI 0550 A070URD30KI0550

High-speed fuse with aR characteristic for semiconductor protection, rated 550A at 690VAC IEC and 700VAC UL, featuring a ceramic body, striker indication system, and slotted blade terminals.

SKU: W301066Alt SKU: A070UD30KI550MPN: W301066
Price
List Price £165.64 ex VAT
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£165.64
Manufacturer Lead Time Please contact us for a delivery time before you order
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Manufacturer Lead Time

Sold in packs of 3

£165.64

Why Choose the Mersen W301066 Industrial Electrical Component?

The Mersen W301066 is a genuine Mersen industrial electrical component identified by the manufacturer part number W301066. It is intended for maintenance, repair and replacement requirements within compatible electrical equipment, machinery or power management systems.

Selecting a replacement component by its exact manufacturer and part number helps reduce procurement errors and supports reliable equipment maintenance. The W301066 reference allows engineers, maintenance teams and purchasing departments to identify the required Mersen component accurately when reviewing equipment records, technical documentation or an existing installed part.

Before ordering or installing the Mersen W301066, its specifications and compatibility should be confirmed against the original component, equipment manual or approved bill of materials. Electrical ratings, physical dimensions and mounting requirements may depend on the equipment in which the component is used.

Key Advantages

  • Genuine Mersen industrial replacement component.
  • Clear W301066 manufacturer part number supports accurate identification.
  • Suitable for industrial maintenance, repair and replacement requirements.
  • Helps reduce the risk of ordering an incorrectly matched component.
  • Supports equipment servicing and preventative maintenance programmes.
  • Suitable for sourcing by engineers, panel builders and industrial maintenance teams.

Key Features

  • Mersen industrial electrical component.
  • Manufacturer part number W301066.
  • Designed for use with compatible equipment and electrical assemblies.
  • Suitable for planned maintenance and operational replacement.
  • Manufacturer-specific reference for inventory and procurement records.
  • Intended for installation by suitably qualified personnel.
  • Supports the continued operation of industrial electrical systems.
  • Technical compatibility should be verified before installation.

Reliable Component Selection for Industrial Maintenance

Correct component selection is essential when maintaining industrial electrical equipment. Even visually similar parts can have different electrical characteristics, dimensions, connection arrangements or approved applications. Identifying a replacement using the exact Mersen W301066 reference helps maintenance teams compare the product with equipment documentation and the original installed component.

All electrical equipment should be safely isolated before inspection or component replacement. Installation must follow the applicable equipment instructions, site procedures and electrical safety regulations. Where technical details are unavailable, compatibility should be confirmed with the equipment manufacturer or an authorised Mersen supplier.

Typical Applications

  • Industrial electrical equipment maintenance.
  • Control panel and switchboard servicing.
  • Replacement of an existing Mersen W301066 component.
  • Factory automation equipment repairs.
  • Power distribution system maintenance.
  • OEM machinery and specialised electrical assemblies.

Technical Specifications

Item number W301066
Catalogue No A070UD30KI550
Description Square Body High-Speed Fuse Protistor® Size 30 aR 690VAC IEC 700VAC UL 550A With Striker Slotted Blades short
EAN/UPC Code 3605340336283
Rated voltage AC UL 700 V
Rated voltage AC IEC 690 V
Ampere Rating 550 A
RoHS Compliant Yes
AC or DC AC
Speed/Characteristic aR
Fuse Size 30
Mounting Bolted
Clearing I2t At Rated Voltage 330 kA²s
Melting I2t 52 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 40 mm
Product Length 129 mm
Product Height 48 mm
Sell Pack Quantity 3 EA
Sell Pack Weight 0.873 kg
Sell Pack Width 133 mm
Sell Pack Length 157 mm
Sell Pack Height 54 mm
Product group Semiconductor Protection Fuses
Body/Insulating Material Ceramic
Product Weight 0.291 kg
Power Dissipation at Rated Current Value 90 W
HS Code 85361090
Country of Manufacture France
Fuse Type Semiconductor
Fuse Class aR
Voltage 690 V

Frequently Asked Questions

What is the Mersen W301066 used for?

The Mersen W301066 is an industrial electrical component intended for use within compatible equipment or assemblies. Its precise function should be confirmed from the original component or equipment documentation.

How can I confirm that the W301066 is the correct component?

Compare the W301066 part number with the existing component, equipment manual, technical drawing or approved bill of materials before ordering.

What are the electrical ratings of the Mersen W301066?

The electrical ratings should be confirmed from the product label, official technical documentation or the equipment manufacturer before installation.

Can I replace the W301066 with an alternative component?

An alternative should only be used when its electrical, mechanical and safety specifications have been verified as compatible by a qualified engineer or the equipment manufacturer.

Who should install the Mersen W301066?

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

Trusted Industrial Electrical Expertise

Mersen products are used throughout industrial electrical applications where accurate component selection, dependable performance and effective equipment maintenance are essential.

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 Priority sourcing and supply support

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 Support for engineering, maintenance, and operations

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Customers supported

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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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