High-speed aR characteristic fuse with 1250VAC IEC and 1300VAC UL ratings, 50A current capacity, flush striker indicator, and metric threaded flush ends for industrial semiconductor protection.
£96.16
The Mersen C301095 is an industrial high-speed semiconductor fuse intended to protect sensitive power electronic components against damaging short-circuit currents. It is suitable for equipment incorporating devices such as IGBTs, thyristors, SCRs, rectifier diodes and semiconductor power modules.
High-speed fuses operate significantly faster than conventional general-purpose fuses, limiting the electrical and thermal energy transferred to protected components during a fault. This rapid current-limiting action can help reduce secondary damage, improve equipment reliability and minimise costly downtime in industrial power-conversion and motor-control systems.
The Mersen C301095 fuse is suitable for maintenance, repair and replacement applications where its electrical ratings, utilisation category, body dimensions and terminal arrangement match the original component. The precise current rating, voltage rating, breaking capacity and mounting configuration should be confirmed from the fuse markings or official Mersen technical documentation before installation.
Power semiconductor devices can be permanently damaged by fault currents before conventional circuit-protection products have time to operate. High-speed fuses such as the Mersen C301095 are designed to interrupt these currents rapidly, reducing the amount of damaging energy that reaches sensitive electronic components.
Correct fuse selection is essential for safe and reliable operation. Any replacement fuse should match the current rating, voltage rating, utilisation category, breaking capacity, dimensions and terminal arrangement specified by the equipment manufacturer.
| Item number | C301095 |
|---|---|
| Catalogue No | PC70UD13C50TF |
| Description | Square Body High-Speed Fuse Protistor® Size 70 aR 1250VAC IEC 1300VAC UL 50A With Striker Flush ends metric threads |
| EAN/UPC Code | 3605340336764 |
| Rated voltage AC UL | 1300 V |
| Rated voltage AC IEC | 1250 V |
| Ampere Rating | 50 A |
| AC or DC | AC |
| Speed/Characteristic | aR |
| Fuse Size | 70 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 980 A²s |
| Melting I2t | 120 A²s |
| AC Max I.R./Breaking Capacity | I1: 126 kA |
| Indication System | Yes |
| Indication System Type | Striker |
| Connection/Terminal Material | Silver-Plated Brass |
| Connection/Terminal Type | Flush ends |
| Product Width | 39.8 mm |
| Product Length | 74 mm |
| Product Height | 49.5 mm |
| Sell Pack Quantity | 3 EA |
| Sell Pack Weight | 1.017 kg |
| Sell Pack Width | 85 mm |
| Sell Pack Length | 133 mm |
| Sell Pack Height | 55 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.339 kg |
| Power Dissipation at Rated Current Value | 16 W |
| HS Code | 85351000 |
The Mersen C301095 is used to provide high-speed short-circuit protection for semiconductor devices installed in industrial power electronic equipment.
It is intended for applications involving sensitive components such as IGBTs, thyristors, SCRs, rectifier diodes and semiconductor power modules.
It should only be installed where its electrical ratings, operating characteristic, dimensions and terminal configuration match the equipment requirements. A general-purpose fuse may not operate quickly enough to protect sensitive semiconductor components.
Check the markings printed on the original fuse and compare them with the equipment documentation or an official Mersen technical datasheet before ordering a replacement.
It is typically installed within industrial drives, converters, rectifiers, power supplies, control cabinets and other equipment containing power semiconductor devices.
Mersen high-speed fuses are specified by equipment manufacturers, panel builders and maintenance engineers to protect critical semiconductor components in demanding industrial power electronic systems.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...