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High-speed fuse providing reliable protection for semiconductor devices with a robust square body design and flush-end striker with UNC thread terminals. Rated 100A, 690VAC IEC / 700VAC UL.
£48.32
The Mersen W300744 is a genuine Mersen industrial electrical component intended for maintenance, repair and replacement applications within compatible electrical equipment. Manufactured by a recognised specialist in electrical protection and power management technologies, this component helps engineers maintain dependable operation while preserving the integrity of the original system.
Using the correct manufacturer-specified replacement component is important when servicing industrial equipment. The Mersen W300744 provides a traceable part reference that enables maintenance teams, panel builders and purchasing departments to identify the required component accurately and reduce the risk of installing an unsuitable alternative.
The W300744 part number should be checked against the existing component, equipment documentation or approved bill of materials before installation. Electrical ratings, dimensions and compatibility can vary between applications, so the equipment manufacturer’s technical information must be followed when selecting and fitting this product.
Industrial electrical systems depend on correctly matched components to deliver safe and reliable performance. Selecting a replacement by manufacturer and part number helps ensure that its construction, connections and operating characteristics are appropriate for the intended equipment.
The Mersen W300744 is identified through its dedicated manufacturer reference, making it easier to manage inventories, maintenance records and equipment bills of materials. Before fitting the component, engineers should isolate the equipment safely and confirm all technical details against the original part and relevant system documentation.
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | W300744 | |
| Catalogue No | A070UD30TTI100 | |
| Description | Square Body High-Speed Fuse Protistor® Size 30 aR 690VAC IEC 700VAC UL 100A With Striker Flush ends UNC threads | |
| EAN/UPC Code | 3605340332902 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 100 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 30 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 2.7 kA²s | |
| Melting I2t | 0.47 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Brass | |
| Connection/Terminal Type | Flush ends | |
| Product Width | 40 mm | |
| Product Length | 50.6 mm | |
| Product Height | 48 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 0.765 kg | |
| Sell Pack Width | 80 mm | |
| Sell Pack Length | 135 mm | |
| Sell Pack Height | 55 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.255 kg | |
| Power Dissipation at Rated Current Value | 26 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
The Mersen W300744 is an industrial electrical replacement component intended for use within compatible equipment. Its exact function should be confirmed from the equipment documentation or the original installed component.
Compare the W300744 part number with the existing component, equipment manual, wiring documentation or approved bill of materials before ordering or installation.
The required electrical ratings should be verified from the component label, Mersen documentation or the equipment manufacturer’s technical information before installation.
An alternative should only be used when its electrical, mechanical and safety characteristics have been verified as fully compatible by a qualified engineer or the equipment manufacturer.
The component should be installed by a suitably qualified electrical professional following the applicable isolation procedures, safety regulations and manufacturer instructions.
Mersen components are used across industrial electrical applications where dependable power management, equipment protection and accurate replacement-part identification are essential.
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