Standard delivery
£8 ex VAT · free over £200UK 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.
High-speed aR characteristic fuse designed for semiconductor protection with 690VAC IEC and 700VAC UL ratings, 550A current, striker indication, flush ends, and UNC threads.
£102.53
The Mersen R300464 is a genuine Mersen industrial electrical component intended for professional maintenance, repair and replacement applications. Identified by the manufacturer reference R300464, it helps engineers, panel builders and purchasing teams locate the correct component when this exact part number is specified within equipment documentation, electrical drawings or approved spare-parts records.
Mersen is an established manufacturer of electrical protection and power-management solutions for industrial systems. Selecting an original Mersen product with the correct reference helps maintain equipment reliability, simplify component procurement and reduce the risk of installing an unsuitable replacement.
The exact product classification, electrical ratings, dimensions, terminal arrangement and mounting requirements of the R300464 should be verified against current Mersen technical documentation before purchase or installation. The complete markings on the existing component should also be checked to confirm compatibility with the intended equipment.
Industrial electrical equipment often requires replacement components to match an exact manufacturer reference. Correct part-number matching helps ensure that the selected component has the appropriate electrical characteristics, physical dimensions, connection arrangement and mounting format for the intended equipment.
Before installing the Mersen R300464, engineers should compare the complete markings on the original component with the equipment manual, electrical schematics and current manufacturer information. Voltage, current, terminal layout, mounting method and system compatibility must all be verified before the equipment is commissioned.
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | R300464 | |
| Catalogue No | A070UD32TTI550 | |
| Description | Square Body High-Speed Fuse Protistor® Size 32 aR 690VAC IEC 700VAC UL 550A With Striker Flush ends UNC threads | |
| EAN/UPC Code | 3605340328875 | |
| 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 | 32 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 215 kA²s | |
| Melting I2t | 37 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 | 59 mm | |
| Product Length | 50.6 mm | |
| Product Height | 65 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 1.8099 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 | 0.6033 kg | |
| Power Dissipation at Rated Current Value | 90 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
The R300464 is a Mersen industrial electrical component identified by its manufacturer-specific reference. Its exact product type and technical ratings should be confirmed using current Mersen documentation.
Compare the complete part number and product markings with the installed component, equipment manual, electrical drawings and current Mersen technical information.
A component with a different reference should only be used when its electrical ratings, dimensions, terminal arrangement and manufacturer-approved compatibility have been fully verified.
Installation should be completed by a suitably qualified electrical engineer or technician following the applicable isolation, inspection and electrical safety procedures.
The R300464 may be used in industrial machinery, electrical panels, power equipment and maintenance applications where this exact Mersen reference is specified.
Mersen products are used by engineers, equipment manufacturers, panel builders and maintenance professionals to support dependable electrical protection, power management and industrial system operation.
We use cookies
We use essential cookies to run this site, your basket and checkout. With your permission we'd also like to use analytics and advertising cookies to understand how the site is used and to measure our adverts.