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MERSEN FUSE 6,9 URD 30 D08 A 0450 6,9URD30D08A0450
High-speed fuse for power semiconductor protection with integrated striker indication, rated at 450A, 690VAC IEC and 700VAC UL certified, featuring ceramic square body and DIN 80 blade terminals.
£83.05
Why Choose the Mersen A300403 Electrical Protection Component?
The Mersen A300403 is an industrial electrical component identified by the manufacturer reference A300403. 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.
Accurate product identification is essential when replacing electrical protection components. Products with a similar physical appearance may have different current ratings, voltage ratings, operating characteristics, breaking capacities, dimensions or terminal arrangements. Specifying the correct Mersen reference helps maintain the intended performance and protection of the associated equipment.
Product-specific technical data for the Mersen A300403 could not be verified from publicly accessible manufacturer or distributor information. Its exact product family, catalogue designation and electrical ratings should therefore be confirmed from the original component markings, the equipment bill of materials or an authorised Mersen technical source before purchase or installation.
Key Advantages
- Genuine Mersen industrial electrical component.
- Manufacturer reference A300403 supports accurate product identification.
- Suitable for maintenance, replacement and OEM procurement requirements.
- Helps simplify spare-parts management and inventory control.
- Intended for use in compatible professional electrical equipment.
- Supports reliable system maintenance when correctly specified.
Key Features
- Manufacturer: Mersen.
- Manufacturer reference: A300403.
- Industrial electrical component.
- Suitable for servicing and replacement applications.
- Manufacturer-specific identification supports procurement accuracy.
- Complete technical compatibility must be verified before installation.
Accurate Component Selection for Electrical Systems
Replacement electrical components must be selected using their complete technical specification rather than their appearance alone. Rated voltage, rated current, 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 A300403, 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 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 | D / D0 (Neozed/Diazed), Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | A300403 | |
| Catalogue No | PC30UD69V450A | |
| Description | Square Body High-Speed Fuse Protistor® Size 30 aR 690VAC IEC 700VAC UL 450A With Striker DIN 80 Blades | |
| EAN/UPC Code | 3605340327885 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 450 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 30 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 165 kA²s | |
| Melting I2t | 26 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 | DIN 80 Blades | |
| Product Width | 40 mm | |
| Product Length | 110 mm | |
| Product Height | 48 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 0.8199 kg | |
| Sell Pack Width | 135 mm | |
| Sell Pack Length | 145 mm | |
| Sell Pack Height | 55 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.2733 kg | |
| Power Dissipation at Rated Current Value | 88 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen A300403?
The A300403 is a manufacturer-specific Mersen reference for an industrial electrical component. Its exact product family and electrical ratings should be confirmed from official documentation or the markings on the original component.
Can the Mersen A300403 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 A300403?
Verified product-specific current and voltage ratings were not found in publicly accessible manufacturer or distributor 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 A300403?
Installation should be carried out by a qualified electrical professional in accordance with the equipment documentation, applicable electrical regulations and site safety procedures.
Trusted Electrical Protection Expertise
Correctly specified electrical components help maintain equipment reliability, minimise the risk of damage and support safe industrial operation.
