High-speed semiconductor protection fuse with 450A rating, striker indication, ceramic body, and bolted mounting for industrial AC applications up to 700V.
£144.91
The Mersen S300005 is an industrial electrical protection component intended for use within a compatible Mersen fuse, power distribution or protection assembly. It is suitable for professional maintenance, replacement and OEM applications where accurate part identification and reliable system compatibility are essential.
Mersen products are widely used in industrial automation, electrical distribution, machinery, motor control and power conversion systems. Selecting the precise S300005 reference helps ensure that the replacement component corresponds with the approved equipment configuration and maintains the intended mechanical and electrical arrangement.
Before ordering or installing the Mersen S300005, its electrical ratings, dimensions, mounting method and connection configuration should be verified against the original component, equipment manual or official Mersen documentation. Components with similar appearances may have different operating characteristics and should not be treated as interchangeable without confirmation.
Correctly specified electrical protection components help reduce the risk of equipment damage caused by overloads, short circuits and other abnormal electrical conditions. They also support effective fault isolation, safer maintenance and improved operational continuity within industrial machinery and power systems.
The Mersen S300005 should only be installed where its manufacturer reference and technical characteristics correspond with the approved equipment specification. The current rating, voltage rating, dimensions, mounting arrangement and connection type should always be confirmed before replacing an existing component.
| Item number | S300005 |
|---|---|
| Catalogue No | PC31UD69V450TF |
| Description | Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 450A With Striker Flush ends metric threads |
| EAN/UPC Code | 3605340322293 |
| 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 | 31 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 155000 A²s |
| Melting I2t | 26500 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 | 70 W |
| HS Code | 85361090 |
| Country of Manufacture | France |
The Mersen S300005 is intended for use within a compatible industrial electrical protection assembly. Its precise function should be confirmed against the original equipment documentation.
It should only be used as a direct replacement when the complete manufacturer reference, electrical ratings, dimensions, mounting method and connection arrangement match the original component.
Depending on the approved system specification, it may be installed in compatible electrical panels, industrial machinery, automation equipment or power protection assemblies.
Check the complete part number, product label, electrical ratings, physical dimensions, mounting arrangement and connection type against the relevant equipment documentation.
The component should be selected and installed by a suitably qualified electrical professional in accordance with the equipment instructions and applicable electrical safety requirements.
Mersen electrical protection technologies are widely specified by panel builders, maintenance engineers and equipment manufacturers for dependable performance in industrial distribution, automation and machinery applications.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...