Mersen A130UD73LI700 / J300687 Protistor Size 73 aR High-Speed Semiconductor Fuse, 700 A, 1200V AC
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The Mersen A130UD73LI700 is an ultra-fast acting Protistor® square body fuse-link expertly engineered for the ultimate protection of power conversion equipment and heavy industrial motor drives. Operating within the high-performance aR characteristic class, this Size 73 fuse delivers industry-leading current limitation and superior thermal cycling capabilities, safeguarding sensitive semiconductor devices such as diodes, thyristors, and IGBTs from damaging short-circuit fault currents. Featuring non-magnetic hardware, silver-plated LI slotted blade terminals, and an elevated 150 kA breaking capacity, it provides rapid, highly reliable fault clearing for mission-critical industrial applications and enterprise UPS systems.
| Product ID (MPN) | A130UD73LI700 |
| Order Code / Item Number | J300687 |
| Product Series | Protistor® Square Body High-Speed Fuses |
| Fuse Size | Size 73 |
| Speed / Characteristic | aR (Ultra-Fast Acting Semiconductor Protection) |
| Rated Current (In) | 700 A |
| Rated Voltage (AC) | 1200 V AC (IEC) / 1300 V AC (UL) |
| Rated Breaking Capacity | 150 kA AC |
| Terminals / Mounting Style | Type LI (Slotted Blades) |
| Pre-arcing I²t | 110 kA²s |
| Clearing I²t at Rated Voltage | 900 kA²s |
| Power Dissipation (at In) | 146 W |
| Weight | 1.25 kg |
| Standards & Certifications | IEC 60269-4, VDE 636-23, UL/CSA Recognized (E76491) |
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