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MERSEN FUSE 6,9 URD 33 D08 A 1400 6,9URD33D08A1400
High-speed Protistor® fuse with striker indication, designed for semiconductor protection up to 1400A, rated 690VAC IEC and 700VAC UL, with DIN 80 blade terminals.
£187.47
Why Choose the Mersen R300257 Industrial Electrical Component?
The Mersen R300257 is a genuine Mersen industrial electrical component identified by its precise manufacturer reference. It is intended for professional maintenance, repair and replacement requirements where the original equipment documentation or installed component specifies part number R300257.
Mersen is an established manufacturer of electrical protection, power management and industrial safety products. Selecting a component with the correct manufacturer reference helps engineers, panel builders and maintenance teams reduce compatibility risks while supporting dependable equipment operation.
The exact electrical ratings, dimensions, connection arrangement and mounting requirements of the R300257 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 that the replacement matches the required application.
Key Advantages
- Genuine Mersen industrial electrical component.
- Clearly identified by manufacturer reference R300257.
- Suitable for professional maintenance, repair and replacement work.
- Supports accurate component identification and procurement.
- Manufactured by an established electrical protection specialist.
- Suitable for engineers, OEMs, panel builders and maintenance teams.
Key Features
- Mersen branded industrial component.
- Manufacturer part number R300257.
- Intended for professional industrial electrical applications.
- Suitable for replacing a component carrying the same reference.
- Supports planned maintenance and equipment refurbishment.
- Manufacturer-specific identification simplifies spare-parts management.
- Compatibility should be confirmed before ordering.
- Installation should be completed by suitably qualified personnel.
Reliable Component Selection for Industrial Systems
Industrial electrical equipment often requires replacement components to match an exact manufacturer reference. Correct part-number matching helps ensure that the selected product has the appropriate electrical characteristics, physical dimensions, terminal arrangement and mounting configuration for the intended equipment.
Before installing the Mersen R300257, engineers should compare the complete markings on the original component with the equipment manual, electrical schematics and current manufacturer information. Voltage, current, connection method, mounting arrangement and system compatibility must all be verified before commissioning.
Typical Applications
- Industrial electrical maintenance.
- Machinery servicing and repair.
- Electrical control panel refurbishment.
- Power distribution equipment maintenance.
- OEM equipment replacement projects.
- Industrial 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 | R300257 | |
| Catalogue No | PC33UD69V1400A | |
| Description | Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 1400A With Striker DIN 80 Blades | |
| EAN/UPC Code | 3605340325874 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 1400 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 33 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 2700 kA²s | |
| Melting I2t | 465 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Design Details | Reinforced Terminal | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | DIN 80 Blades | |
| Product Width | 73 mm | |
| Product Length | 110 mm | |
| Product Height | 78.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 2.4369 kg | |
| Sell Pack Width | 145 mm | |
| Sell Pack Length | 250 mm | |
| Sell Pack Height | 90 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.8123 kg | |
| Power Dissipation at Rated Current Value | 200 W | |
| HS Code | 85361090 |
Frequently Asked Questions
What is the Mersen R300257?
The R300257 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.
How can I confirm that the R300257 is compatible with my equipment?
Compare the complete part number and product markings with the installed component, equipment manual, electrical drawings and current Mersen technical information.
Can the R300257 replace a component with a different part number?
A component with a different reference should only be used when its electrical ratings, physical dimensions, terminals and manufacturer-approved compatibility have been fully verified.
Who should install the Mersen R300257?
Installation should be completed by a suitably qualified electrical engineer or technician following the applicable isolation, inspection and electrical safety procedures.
Where is this component typically used?
The R300257 may be used in industrial machinery, electrical panels, power equipment and maintenance applications where this exact Mersen reference is specified.
Trusted Industrial Electrical Solutions
Mersen products are used by engineers, equipment manufacturers, panel builders and maintenance professionals to support dependable electrical protection, power management and industrial system operation.
