Why Choose the MERSEN FUSE 12,5 URD 71 D13A 0350 PC71UD13C350D3A? MERSEN FUSE 12,5 URD 71 D13A 0350 PC71UD13C350D3A 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 71 D13A 0350 PC71UD13C350D3A – 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 71 D13A 0350 PC71UD13C350D3A – 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.
£183.47
The Mersen R301223, catalogue reference PC71UD13C350D3A, is a genuine Protistor® Size 71 high-speed semiconductor fuse developed to provide rapid short-circuit protection for sensitive power semiconductor devices. It is rated at 350A and designed for systems operating up to 1250VAC with an aR operating characteristic for semiconductor protection.
Engineered for demanding industrial applications, the R301223 helps protect diodes, thyristors, IGBTs and other semiconductor devices by limiting fault current and reducing let-through energy. The fuse incorporates a D3A striker indicator to provide local blown-fuse indication or operate a compatible microswitch for remote signalling.
Its square ceramic body and robust blade terminal construction make the Mersen R301223 suitable for industrial drives, power converters, rectifiers, renewable energy equipment and other high-performance power electronic systems requiring dependable semiconductor protection.
Protistor® semiconductor fuses are engineered to minimise the damaging effects of short-circuit currents on expensive semiconductor devices. Their high-speed current-limiting performance helps improve equipment reliability while reducing downtime and repair costs in demanding industrial environments.
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The Mersen R301223 is a Protistor® Size 71 high-speed semiconductor fuse with catalogue number PC71UD13C350D3A, rated at 350A and 1250VAC.
The aR operating class is designed for ultra-fast short-circuit protection of semiconductor devices such as IGBTs, thyristors and power diodes. Separate overload protection should be provided where required.
The integrated D3A striker provides mechanical blown-fuse indication and can be used with a compatible microswitch for remote signalling.
Typical applications include industrial drives, power converters, UPS systems, renewable energy equipment and other power electronic installations requiring high-speed semiconductor protection.
Yes. R301223 is an original Mersen Protistor® semiconductor fuse with catalogue reference PC71UD13C350D3A.
Mersen Protistor® semiconductor fuses are trusted worldwide for delivering rapid fault interruption and dependable protection for high-value power electronic equipment.
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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...