Mersen PC73UD13C630TF / Q300509 Protistor Size 73 aR High-Speed Fuse, 630A, 1250VAC
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The Mersen PC73UD13C630TF (Reference Number: Q300509) is a ultra-fast-acting Protistor® square body fuse-link, specifically engineered for the high-performance protection of power semiconductor devices. This Size 73 aR class fuse is ideal for protecting diodes, thyristors, and IGBT modules in power converters, UPS systems, and variable speed drives. Rated for 1250VAC (IEC) and providing a high breaking capacity of 126kA, it ensures rapid quenching of fault currents with extremely low I²t let-through values. The TTF (Tapped Terminal Face) mounting configuration features M12 threaded holes, providing a robust and space-efficient connection for high-power distribution busbars.
| Manufacturer | Mersen (Ferraz Shawmut) |
| Catalog Number | PC73UD13C630TF |
| Item Number (Reference) | Q300509 |
| Fuse Body Size | 73 |
| Rated Current (In) | 630 A |
| Rated Voltage (VAC) | 1250 VAC (IEC) / 1300 VAC (UL) |
| Utilization Category | aR (Ultra-fast-acting) |
| Breaking Capacity | 126 kA @ 1250VAC |
| Mounting Style | TTF (M12 Tapped Terminals) |
| Indication | Trip-indicator (microswitch ready) |
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