High-speed Protistor® fuse engineered for optimal protection of power semiconductor devices with 1250 VAC IEC and 1300 VAC UL voltage rating, featuring DIN 110 blade terminations and integrated striker indication.
£137.35
The Mersen E300545, catalogue number PC71UD13C200D1A, is a premium square body high-speed semiconductor fuse designed to provide ultra-fast protection for modern power electronic equipment. As part of the trusted Mersen Protistor® Size 71 series, this fuse is specifically engineered to protect IGBTs, thyristors, diodes and other semiconductor devices against damaging short circuits and fault currents. Featuring DIN 110 blade terminals and an integrated striker indicator, it offers reliable performance in demanding industrial applications.
Engineered for high-performance semiconductor protection, the E300545 combines precision die-cut fuse elements embedded in solidified sand with silver-plated contact surfaces and non-magnetic hardware. This construction delivers exceptionally low let-through energy (I²t), helping to minimise damage to expensive equipment while maximising system uptime and operational reliability.
With a 200 A current rating, 1250 V AC IEC rating and 1300 V AC UL rating, the Mersen E300545 is ideally suited for high-voltage variable speed drives, renewable energy systems, UPS installations, power converters and industrial automation equipment requiring dependable semiconductor protection.
High-speed semiconductor fuses are engineered to interrupt fault currents before sensitive semiconductor devices can be damaged. The Mersen Protistor® Size 71 range delivers exceptionally fast fault clearing with low I²t values, making it ideal for protecting modern high-voltage power conversion equipment while improving reliability and reducing costly downtime.
The E300545 is widely used in renewable energy systems, industrial motor drives, power converters, UPS installations and heavy-duty automation equipment where dependable semiconductor protection is essential for safe and continuous operation.
| Current | 11 A |
|---|---|
| Item number | E300545 |
| Catalogue No | PC71UD13C200D1A |
| Description | Square Body High-Speed Fuse Protistor® Size 71 aR 1250VAC IEC 1300VAC UL 200A With Striker DIN 110 Blades |
| EAN/UPC Code | 3605340330038 |
| Rated voltage AC UL | 1300 V |
| Rated voltage AC IEC | 1250 V |
| Ampere Rating | 200 A |
| AC or DC | AC |
| Speed/Characteristic | aR |
| Fuse Size | 71 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 38 kA²s |
| Melting I2t | 4.7 kA²s |
| AC Max I.R./Breaking Capacity | I1: 126 kA |
| Indication System | Yes |
| Indication System Type | Striker |
| Connection/Terminal Material | Silver-Plated Copper |
| Connection/Terminal Type | DIN 110 Blades |
| Product Width | 51 mm |
| Product Length | 133.4 mm |
| Product Height | 56.5 mm |
| Sell Pack Quantity | 3 EA |
| Sell Pack Weight | 1.56 kg |
| Sell Pack Width | 142 mm |
| Sell Pack Length | 166 mm |
| Sell Pack Height | 62 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.52 kg |
| Power Dissipation at Rated Current Value | 54 W |
| HS Code | 85351000 |
The E300545 provides ultra-fast protection for semiconductor devices including IGBTs, thyristors and diodes used in high-voltage power conversion equipment.
The Mersen E300545 has a 200 A rated current.
It is rated for 1250 V AC (IEC) and 1300 V AC (UL) applications.
The fuse features robust DIN 110 blade terminals with silver-plated contact surfaces for secure bolted installation.
It is commonly installed in industrial drives, converters, UPS systems, renewable energy equipment and other high-voltage power electronic installations.
Mersen Protistor® semiconductor fuses are trusted worldwide by OEMs, panel builders and industrial engineers to deliver dependable protection for critical power electronic equipment operating in demanding industrial environments.
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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...