MERSEN FUSE A 070 URD 33 KI 0800 A070URD33KI0800

MERSEN FUSE A 070 URD 33 KI 0800 A070URD33KI0800

High-speed Protistor® Size 33 fuse with aR characteristic, 800A rating, 690VAC IEC and 700VAC UL voltage ratings, featuring striker indication and slotted blade terminals for bolted mounting.

SKU: A300242Alt SKU: A070UD33KI800MPN: A300242
Price
List Price £228.15 ex VAT
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£228.15
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Manufacturer Lead Time

Sold in packs of 3

£228.15

Why Choose the Mersen A300242 Electrical Protection Component?

The Mersen A300242 is an industrial electrical protection component identified by the manufacturer reference A300242. This unique part number helps engineers, maintenance teams and purchasing professionals identify the required component when servicing electrical distribution, industrial automation, motor control or power conversion equipment.

Correct product identification is especially important for electrical protection devices because components with a similar appearance may have significantly different current ratings, voltage ratings, operating characteristics, breaking capacities or terminal arrangements. Using the correct Mersen reference helps maintain the intended protection and performance of the associated equipment.

Product-specific technical data for the Mersen A300242 could not be verified from publicly accessible manufacturer documentation. Its exact product family, catalogue designation and electrical ratings should therefore be confirmed from the original component markings, the equipment parts list or an authorised Mersen technical source before purchase or installation.

Key Advantages

  • Genuine Mersen industrial electrical component.
  • Manufacturer reference A300242 supports accurate product identification.
  • Suitable for maintenance, replacement and OEM procurement requirements.
  • Helps simplify spare-parts management and stock control.
  • Intended for use in compatible professional electrical equipment.
  • Supports dependable system maintenance when correctly specified.

Key Features

  • Manufacturer: Mersen.
  • Manufacturer reference: A300242.
  • Industrial electrical protection component.
  • Suitable for maintenance and replacement applications.
  • Manufacturer-specific identification assists procurement accuracy.
  • Complete technical compatibility must be verified before installation.

Accurate Component Selection for Electrical Systems

Replacement electrical protection components must be selected according to their complete technical specification rather than their physical appearance alone. Rated current, rated voltage, utilisation category, time-current performance, breaking capacity and mounting arrangement can all determine whether a component is suitable for a particular installation.

Before installing the Mersen A300242, compare every marking on the existing component with the equipment manual, electrical drawings and bill of materials. Electrical isolation, installation and testing should only be completed by a suitably qualified professional.

Typical Applications

  • Industrial electrical equipment maintenance.
  • Control panels and switchgear assemblies.
  • Power distribution equipment.
  • Motor control and industrial automation systems.
  • Power conversion and production machinery.
  • OEM replacement and spare-parts inventories.

Technical Specifications

Item number A300242
Catalogue No A070UD33KI800
Description Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 800A With Striker Slotted Blades short
EAN/UPC Code 3605340325577
Rated voltage AC UL 700 V
Rated voltage AC IEC 690 V
Ampere Rating 800 A
RoHS Compliant Yes
AC or DC AC
Speed/Characteristic aR
Fuse Size 33
Mounting Bolted
Clearing I2t At Rated Voltage 540 kA²s
Melting I2t 93 kA²s
AC Max I.R./Breaking Capacity I1: 200 kA
Design Details Standard Terminal
Indication System Yes
Indication System Type Striker
Connection/Terminal Material Silver-Plated Copper
Connection/Terminal Type Slotted Blades
Product Width 73 mm
Product Length 134 mm
Product Height 78.5 mm
Sell Pack Quantity 3 EA
Sell Pack Weight 2.5353 kg
Sell Pack Width 145 mm
Sell Pack Length 245 mm
Sell Pack Height 90 mm
Product group Semiconductor Protection Fuses
Body/Insulating Material Ceramic
Product Weight 0.8451 kg
Power Dissipation at Rated Current Value 130 W
HS Code 85361090
Fuse Type Semiconductor
Fuse Class aR
Voltage 690 V

Frequently Asked Questions

What is the Mersen A300242?

The A300242 is a manufacturer-specific Mersen reference for an industrial electrical protection component. Its exact product family and technical ratings should be confirmed from official documentation or the markings on the original component.

Can the Mersen A300242 be used as a direct replacement?

It should only be used as a direct replacement after confirming that the complete part number, electrical ratings, operating characteristic, dimensions and terminal arrangement match the original component.

What are the current and voltage ratings of the A300242?

Verified product-specific current and voltage ratings were not found in publicly accessible manufacturer information. Check the product label, equipment documentation or an authorised Mersen technical source before ordering.

How can compatibility be confirmed?

Compare the complete manufacturer reference and every technical marking with the original component, equipment manual, electrical drawings and bill of materials.

Who should install the Mersen A300242?

Installation should be carried out by a qualified electrical professional in accordance with the equipment documentation, applicable electrical regulations and site safety procedures.

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Correctly specified electrical protection components help maintain equipment reliability, minimise the risk of damage and support safe industrial operation.

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