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MERSEN FUSE A070 URD 33 TTI 0700 A070URD33TTI0700
High-speed aR characteristic fuse rated 700A for semiconductor protection with flush-end striker indication and UNC threaded terminals.
£175.68
Why Choose the Mersen A300449 Electrical Component?
The Mersen A300449 is an industrial electrical component identified by the manufacturer reference A300449. This unique reference helps engineers, maintenance personnel and procurement teams identify the required part when servicing compatible electrical distribution, industrial automation, motor-control or power-conversion equipment.
Accurate product identification is essential when replacing electrical components. Parts with a similar physical appearance may have different voltage ratings, current ratings, operating characteristics, dimensions or connection arrangements. Verifying the complete Mersen reference helps reduce the risk of selecting an unsuitable replacement.
Product-specific technical information for the Mersen A300449 could not be verified from publicly accessible manufacturer or distributor sources. Its precise product family, catalogue designation and electrical specifications should therefore be confirmed from the original component label, equipment bill of materials or an authorised Mersen technical source before purchase or installation.
Key Advantages
- Manufacturer-specific Mersen A300449 reference.
- Supports accurate component identification and procurement.
- Suitable for compatible industrial maintenance and OEM requirements.
- Helps simplify spare-parts management and inventory control.
- Intended for professional electrical equipment applications.
- Supports dependable equipment maintenance when correctly specified.
Key Features
- Manufacturer: Mersen.
- Manufacturer reference: A300449.
- Industrial electrical component.
- Suitable for servicing and replacement applications.
- Unique part reference assists purchasing and stock management.
- Complete technical compatibility must be verified before installation.
Accurate Component Selection for Industrial Equipment
Replacement electrical components should be selected using their complete technical specification rather than physical appearance alone. Voltage, current, operating class, interrupting capacity, dimensions and terminal configuration may all determine whether a component is suitable for a particular application.
Before installing the Mersen A300449, compare every marking on the existing component with the equipment manual, wiring diagrams and bill of materials. Isolation, installation and testing should only be carried out by a suitably qualified electrical 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
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | A300449 | |
| Catalogue No | A070UD33TTI700 | |
| Description | Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 700A With Striker Flush ends UNC threads | |
| EAN/UPC Code | 3605340328578 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 700 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 33 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 330 kA²s | |
| Melting I2t | 57 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 Brass | |
| Connection/Terminal Type | Flush ends | |
| Product Width | 73 mm | |
| Product Length | 50.6 mm | |
| Product Height | 78.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 2.682 kg | |
| Sell Pack Width | 86 mm | |
| Sell Pack Length | 247 mm | |
| Sell Pack Height | 94 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.894 kg | |
| Power Dissipation at Rated Current Value | 115 W | |
| HS Code | 85361090 |
Frequently Asked Questions
What is the Mersen A300449?
The A300449 is a manufacturer-specific Mersen reference for an industrial electrical component. Its precise product family and technical ratings should be confirmed from the component label or official manufacturer documentation.
Can the Mersen A300449 be used as a direct replacement?
It should only be used as a direct replacement after confirming that the complete part number, electrical ratings, physical dimensions and terminal arrangement match the original component.
What are the voltage and current ratings of the A300449?
Verified product-specific voltage and current ratings were not found in publicly accessible manufacturer or distributor information. Check the original product label, equipment documentation or an authorised Mersen technical source.
How can compatibility be confirmed?
Compare the complete manufacturer reference and all technical markings with the original component, equipment manual, electrical drawings and bill of materials.
Who should install the Mersen A300449?
Installation should be performed by a qualified electrical professional in accordance with the equipment documentation, applicable regulations and site safety procedures.
Trusted Electrical Engineering Expertise
Correctly specified electrical components help maintain equipment reliability, reduce the risk of damage and support safe industrial operation.
