High-speed aR characteristic fuse rated for 500A at 690VAC (IEC) and 700VAC (UL) with striker indication and DIN 110 blade terminals for semiconductor protection.
£170.26
The Mersen S300258 is a specialist industrial electrical component designed for use in professional electrical protection, power distribution and equipment maintenance applications. Manufactured by Mersen, it is suitable for engineers, maintenance teams and OEM users requiring an accurately identified replacement component for industrial electrical systems.
Using the correct manufacturer part number is essential when replacing components within control panels, machinery and power distribution equipment. The S300258 reference enables accurate product identification, helping users maintain system compatibility and reduce the risk of installing an unsuitable alternative.
The Mersen S300258 is intended for professional industrial use where dependable construction and reliable electrical performance are required. Before installation, its specifications and compatibility should be checked against the original component, associated equipment documentation or current Mersen technical information.
Industrial electrical components play an important role in maintaining the safe and reliable operation of machinery, control systems and power distribution equipment. Selecting the correct replacement part helps preserve equipment performance, minimise unplanned downtime and support effective electrical protection.
The Mersen S300258 carries a dedicated manufacturer reference that allows engineers and purchasing teams to identify the required component accurately. The part number and all relevant electrical characteristics should be verified before installation to ensure suitability for the intended equipment.
| Current | 11 A |
|---|---|
| Item number | S300258 |
| Catalogue No | PC33UD69V500D1A |
| Description | Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 500A With Striker DIN 110 Blades |
| EAN/UPC Code | 3605340325898 |
| Rated voltage AC UL | 700 V |
| Rated voltage AC IEC | 690 V |
| Ampere Rating | 500 A |
| RoHS Compliant | Yes |
| AC or DC | AC |
| Speed/Characteristic | aR |
| Fuse Size | 33 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 110 kA²s |
| Melting I2t | 19 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 Copper |
| Connection/Terminal Type | DIN 110 Blades |
| Product Width | 73 mm |
| Product Length | 134.6 mm |
| Product Height | 78.5 mm |
| Sell Pack Quantity | 3 EA |
| Sell Pack Weight | 2.622 kg |
| Sell Pack Width | 140 mm |
| Sell Pack Length | 240 mm |
| Sell Pack Height | 90 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.874 kg |
| Power Dissipation at Rated Current Value | 105 W |
| HS Code | 85361090 |
The Mersen S300258 is intended for use in professional industrial electrical systems, including protection, control, machinery and power distribution applications.
Yes. S300258 is the manufacturer reference used to identify this Mersen industrial electrical component.
Compare the S300258 reference and the ratings shown on the original component with the equipment manual, electrical drawings or current Mersen technical documentation.
The component should be installed by a suitably qualified electrical professional in accordance with the equipment instructions and applicable electrical regulations.
It may be installed within industrial control panels, machinery, automation systems or power distribution equipment requiring the corresponding Mersen part reference.
Mersen components are used in professional electrical systems where accurate product selection, dependable performance and reliable equipment protection are essential.
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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...