Mersen N300668, Square Body High-Speed Fuse, Fast Acting, Size 71 aR, 1100/1200VAC, 550A, With Striker Slotted Blades long
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These 1250/1300V Protistor® fuse-links provide maximum flexibility in equipment design and ultimate protection for today's power conversion equipment. These aR ultra-fast acting square body fuse-links are available in different body sizes, each size having multiple worldwide acceptable mounting styles. The Protistor® have been engineered to provide state-of-the-art protection for semiconductors: diodes, thyristors and IGBT devices. Fuses are assembled with die-cut elements embedded in solidified sand, which helps control arcing characteristics for a lower I²t and high interrupting rating level. All contact surfaces are silver plated and all hardware is non-magnetic. All fuse-links can be equipped with a low voltage trip-indicator which can operate a field mountable microswitch.
| Part No | A120UD71LLI550 |
| Rated Voltage | UL 1200VAC IEC 1100VAC |
| Ampere Rating | 550A |
| Speed/Characteristic | aR |
| Fuse Size | 71 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 548 kA²s |
| Melting I2t | 84 kA²s |
| AC Max I.R./Breaking Capacity: I1 | 167 kA |
| Indication System | Yes |
| Indication System Type | Striker |
| Connection/Terminal Material | Silver-Plated Copper |
| Connection/Terminal Type | Slotted Blades |
| Dimensions | 6.2'' (L) x 2.01'' (W) x 2.22'' (H) |
| Body/Insulating Material | Ceramic |
| Product Weight | 1.19 lb |
| Power Dissipation at Rated Current Value | 112 W |