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MERSEN FUSE A 070 URD 31 LLI 0800 A070URD31LLI0800
Why Choose the MERSEN FUSE A 070 URD 31 LLI 0800 A070URD31LLI0800?
£147.59
Why Choose the Mersen J300526 Protistor® High-Speed Semiconductor Fuse?
The Mersen J300526 is a premium Protistor® square body high-speed semiconductor fuse designed to provide rapid protection for sensitive power electronic equipment. Engineered specifically for semiconductor applications, it offers exceptional current limiting and ultra-fast fault interruption to safeguard valuable components including IGBTs, SCRs, rectifiers and power diodes.
As part of Mersen's renowned Protistor® semiconductor fuse range, the J300526 is built to minimise the effects of short-circuit faults by reducing let-through energy before damage can occur. This helps improve equipment reliability, minimise downtime and extend the service life of industrial power conversion systems.
The J300526 is suitable for installation in industrial drives, UPS systems, converters, inverters, battery storage equipment and renewable energy applications where dependable semiconductor protection is essential for continuous operation.
Key Advantages
- High-speed protection for sensitive semiconductor devices.
- Excellent current-limiting performance during short-circuit faults.
- Helps reduce damage to IGBTs, SCRs and power diodes.
- Improves equipment reliability and operational uptime.
- Suitable for demanding industrial power conversion systems.
- Manufactured by trusted electrical protection specialist Mersen.
Key Features
- Mersen Protistor® high-speed semiconductor fuse.
- Square body industrial fuse construction.
- Ultra-fast fault interruption characteristics.
- Current-limiting design.
- Designed for semiconductor circuit protection.
- Industrial-grade construction for demanding environments.
- Suitable for OEM equipment and maintenance replacements.
- Reliable performance in power electronic applications.
Reliable Protection for Power Electronic Systems
High-speed semiconductor fuses are designed to interrupt fault currents significantly faster than conventional industrial fuses. Their low let-through energy helps protect expensive semiconductor components from catastrophic failure while reducing maintenance costs and improving equipment availability.
Mersen Protistor® semiconductor fuses are widely specified by machine builders, panel manufacturers and industrial engineers for applications requiring dependable protection of modern power electronic equipment.
Typical Applications
- Variable frequency drives.
- Industrial motor control systems.
- Power converters and inverters.
- UPS systems.
- Battery energy storage systems.
- Renewable energy installations.
- Industrial power supplies.
- Semiconductor protection circuits.
Technical Specifications
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| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Manufacturer | Mersen | |
| Series | Protistor® | |
| Model | J300526 | |
| Product type | High-speed semiconductor fuse | |
| Fuse construction | Square body | |
| Fuse characteristic | Ultra-fast semiconductor protection | |
| Application | Protection of IGBTs, SCRs, rectifiers and power diodes | |
| Protection type | Current limiting | |
| Typical installation | Industrial control panels and power conversion equipment | |
| Suitable equipment | Drives, converters, UPS systems, inverters and renewable energy systems | |
| Compliance | RoHS compliant |
Frequently Asked Questions
What is the Mersen J300526 used for?
The J300526 is designed to provide ultra-fast protection for semiconductor devices used in industrial power electronic equipment.
Which components does this fuse protect?
It is designed to protect IGBTs, SCRs, rectifiers, power diodes and other sensitive semiconductor devices against short-circuit faults.
Where is the J300526 typically installed?
This fuse is commonly installed in variable speed drives, converters, UPS systems, industrial inverters and renewable energy equipment.
Why use a semiconductor fuse instead of a standard fuse?
Semiconductor fuses operate much faster than standard industrial fuses, limiting fault energy and helping prevent damage to sensitive electronic components.
Who manufactures the J300526?
The J300526 is manufactured by Mersen, a global leader in electrical protection and advanced materials for industrial applications.
Trusted by Industrial Engineers Worldwide
Mersen Protistor® semiconductor fuses are trusted worldwide to provide reliable, high-speed protection for industrial power electronics, helping maximise equipment uptime and safeguard valuable semiconductor devices.
