The PC72UD13C500TF Protistor® offers reliable circuit protection for demanding industrial and power electronics applications, supporting up to 1250VAC (IEC) and 1300VAC (UL) with a robust 500A rating. Its high-speed operation ensures rapid interruption of fault currents, minimising equipment damage and downtime.
£185.16
The Mersen D300498 is a genuine Protistor® Size 72 square body high-speed semiconductor fuse designed to provide ultra-fast protection for high-power semiconductor equipment operating on medium-voltage AC systems. Manufactured as an aR class semiconductor fuse, it is specifically engineered to protect diodes, thyristors, IGBTs and other power semiconductor devices used in demanding industrial power conversion applications. The fuse is rated at 1250 V AC (IEC), 1300 V AC (UL) and 500 A.
Manufactured by Mersen, Catalogue Number PC72UD13C500TF, the D300498 features flush-end metric threaded terminals, an integrated striker indicator and silver-plated contact surfaces. Its robust ceramic square body construction and low I²t characteristics provide exceptional protection against short-circuit faults while helping minimise damage to expensive semiconductor devices.
With a high interrupting capacity, rugged construction and proven Protistor® technology, the D300498 is ideally suited for protecting industrial drives, medium-voltage converters, renewable energy equipment, UPS systems and other critical power electronic installations requiring dependable semiconductor protection.
Protistor® Size 72 semiconductor fuses are specifically designed for high-voltage power conversion equipment where extremely fast fault interruption is essential. Their low let-through energy helps minimise thermal and mechanical stress on semiconductor devices, improving equipment reliability and reducing costly downtime.
The Mersen D300498 combines high-voltage capability, excellent current limiting and rugged construction to deliver dependable protection for industrial drives, converters, UPS installations and renewable energy systems operating at up to 1250 V AC.
| Item number | D300498 |
|---|---|
| Catalogue No | PC72UD13C500TF |
| Description | Square Body High-Speed Fuse Protistor® Size 72 aR 1250VAC IEC 1300VAC UL 500A With Striker Flush ends metric threads |
| EAN/UPC Code | 3605340329339 |
| Rated voltage AC UL | 1300 V |
| Rated voltage AC IEC | 1250 V |
| Ampere Rating | 500 A |
| AC or DC | AC |
| Speed/Characteristic | aR |
| Fuse Size | 72 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 465 kA²s |
| Melting I2t | 57.1 kA²s |
| 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 | 59 mm |
| Product Length | 74 mm |
| Product Height | 63 mm |
| Sell Pack Quantity | 1 EA |
| Sell Pack Weight | 0.8 kg |
| Sell Pack Width | 110 mm |
| Sell Pack Length | 130 mm |
| Sell Pack Height | 80 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.8 kg |
| Power Dissipation at Rated Current Value | 98 W |
| HS Code | 85351000 |
The D300498 provides ultra-fast protection for high-power semiconductor devices including IGBTs, thyristors and diodes used in industrial power conversion equipment.
The fuse has a rated current of 500 A.
It is rated for 1250 V AC (IEC) and 1300 V AC (UL) applications.
Yes. It incorporates an integrated striker mechanism for rapid fault indication and optional microswitch operation.
The D300498 uses flush-end metric threaded terminals for secure bolted installation.
Mersen Protistor® semiconductor fuses are trusted worldwide by OEM manufacturers, panel builders and industrial engineers to protect valuable 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...