Why Choose the MERSEN FUSE 12,5 URD 73 D11A 0800 PC73UD13C800D1A? MERSEN FUSE 12,5 URD 73 D11A 0800 PC73UD13C800D1A delivers robust, standards-compliant performance for demanding electrical applications. This model provides reliable protection and ease of installation, with all key features engineered for maximum safety and efficiency. Key Takeaways – Product Name: MERSEN FUSE 12,5 URD 73 D11A 0800 PC73UD13C800D1A – Key Specs: See description below Frequently Asked Questions – What is the primary application? – Is this product certified? – What are the installation options? – What are the key benefits? – Where can I find technical data? Speed & Safety Benefits – Reliable Performance: Engineered for consistent results – Safe Operation: Built to meet modern standards – Quick Installation: Designed for installer convenience Key Features of MERSEN FUSE 12,5 URD 73 D11A 0800 PC73UD13C800D1A – See full description below – Engineered for reliability – Technical support available What is the primary application?+ See product description for detailed use cases. Is this product certified?+ Consult technical data or documentation for certifications. What are the installation options?+ Refer to the installation manual or contact our team for guidance. What are the key benefits?+ Engineered for performance, reliability, and ease of use. Where can I find technical data?+ Technical datasheets are available on request or on our website.
£351.45
The Mersen X301826 is a premium Protistor® square body high-speed semiconductor fuse engineered to provide exceptionally fast short circuit protection for sensitive power electronic equipment. Designed for demanding industrial environments, it protects semiconductors including IGBTs, thyristors, diodes and power converters from destructive fault currents while helping maximise equipment uptime.
As part of the Mersen Protistor® Size 73 series, the X301826 delivers outstanding current limiting performance, high breaking capacity and reliable operation in industrial motor drives, renewable energy systems, UPS installations and power conversion equipment. Its robust square body construction and integrated striker allow dependable protection and simplified maintenance.
With a rated current of 800 A and a 1250 V AC voltage rating, the X301826 is designed for high-power industrial applications requiring rapid semiconductor protection. The split DIN 110 blade terminals provide secure installation in compatible fuse bases and switchgear assemblies.
The Mersen X301826 is specifically engineered to interrupt fault currents before they can damage valuable semiconductor devices. Its low let-through energy helps extend equipment life, reduce maintenance costs and improve the reliability of critical industrial power systems.
Protistor® semiconductor fuses are widely specified by OEMs, panel builders and industrial engineers where dependable high-speed protection is essential for modern power electronics.
| Current | 11 A |
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The X301826 provides ultra-fast protection for semiconductor devices used in industrial power electronics, including IGBTs, thyristors and power converters.
The fuse has a rated current of 800 A.
The fuse is designed for applications up to 1250 V AC.
Yes. The X301826 features an integrated mechanical striker that provides fuse operation indication and supports remote signalling when used with compatible accessories.
It is commonly installed in high-power motor drives, converters, renewable energy systems, UPS equipment and industrial power distribution assemblies.
Mersen Protistor® semiconductor fuses are trusted by OEMs and industrial engineers worldwide for delivering rapid fault interruption, dependable semiconductor protection and long-term reliability in demanding industrial applications.
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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...