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High-speed Protistor® fuse with 800A rating, flush ends with metric threads, integrated striker indication, suitable for semiconductor protection and industrial applications.
£121.97
The Mersen Y300401 is a genuine Mersen industrial fuse component intended for maintenance, repair and replacement within compatible electrical protection equipment and assemblies. Specifying the complete manufacturer reference helps engineers, panel builders and maintenance teams identify the required component accurately while reducing the risk of selecting an unsuitable alternative.
Mersen manufactures specialist fuses, fuse accessories and circuit protection products for industrial power distribution, automation, machinery and power electronic systems. Selecting the specified Mersen component can help preserve the electrical performance, mechanical compatibility and operational integrity of the original equipment.
Detailed verified public specifications for the Mersen Y300401 are limited. Its precise product type, rated current, rated voltage, fuse operating class, breaking capacity, dimensions and connection arrangement should therefore be confirmed against the original component label, equipment parts list or current Mersen technical documentation before ordering or installation.
Correct fuse selection is essential for reliable electrical protection. Components that appear physically similar can have different current ratings, voltage ratings, breaking capacities, utilisation categories and time-current characteristics. Installing an incorrectly specified component may reduce protection performance or affect the safe operation of connected equipment.
The Mersen Y300401 should be identified using its complete manufacturer reference and compared carefully with the original equipment documentation. The selected replacement must provide the correct electrical characteristics, mechanical dimensions, terminal configuration and operating performance for the intended installation.
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | Y300401 | |
| Catalogue No | PC31UD69V800TF | |
| Description | Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 800A With Striker Flush ends metric threads | |
| EAN/UPC Code | 3605340327854 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 800 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 31 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 880000 A²s | |
| Melting I2t | 140000 A²s | |
| 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 | 51 mm | |
| Product Length | 50.6 mm | |
| Product Height | 56.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 1.1478 kg | |
| Sell Pack Width | 85 mm | |
| Sell Pack Length | 168 mm | |
| Sell Pack Height | 65 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.3826 kg | |
| Power Dissipation at Rated Current Value | 105 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
The Mersen Y300401 is intended for maintenance or replacement within compatible industrial electrical protection equipment and Mersen fuse assemblies.
The exact current rating, voltage rating, breaking capacity and operating class should be confirmed from the original component label or current Mersen technical documentation.
Compatibility should be verified by comparing the complete Y300401 reference, electrical ratings, dimensions and connection arrangement with the original equipment documentation.
A substitute should not be installed unless its electrical ratings, operating characteristics, dimensions, connections and applicable approvals have been confirmed as fully compatible.
The component should be installed by a suitably qualified electrical professional in accordance with the equipment manufacturer’s instructions and applicable electrical safety requirements.
Mersen fuse products and circuit protection components are used across demanding industrial applications where accurate component selection, reliable fault protection and dependable equipment operation are essential.
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