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SINOFUSE RS309-MF-S800A RS309-MF-S Series High-Speed Fuse, 800A, 700V AC/DC / 750V, aR
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$75.00 USD
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$75.00 USD
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The SINOFUSE RS309-MF-S800A is a high-performance, cylindrical bolted high-speed fuse designed for demanding industrial and automotive applications. Featuring an 800A current rating and operating at up to 700V AC/DC (IEC) or 750V (UL) with an aR utilization category, it delivers exceptional short-circuit and overload protection. With a high breaking capacity of up to 100kA (AC) and 50kA (DC), this compact fuse is ideal for electric vehicle (EV) drive systems, power converters, energy storage, and frequency controllers.
| Product ID (MPN) | RS309-MF-S800A |
| Rated Current | 800 A |
| Rated Voltage (IEC) | 700V AC/DC |
| Rated Voltage (UL) | 750V AC/DC |
| Utilization Category | aR |
| Breaking Capacity | 100kA AC / 50kA DC (Time Constant ≤ 15ms) |
| Size Code | 7TA |
| Pre-Arcing I²t | 124,000 A²s |
| Clearing I²t | 428,000 A²s |
| Power Dissipation | 140 W |
| Mounting Type | Bolted (M10) |
| Recommended Torque | 21 ±1 N·m |
| Standards & Approvals | CE, UL (UL248), IEC 60269, ISO 8820, RoHS |
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