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SINOFUSE RS309-MD-125A RS309-MD Series High-Speed Fuse, 125A, 500V AC/DC
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$45.00 USD
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$45.00 USD
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The SINOFUSE RS309-MD-125A is a high-performance cylindrical bolt-connected high-speed fuse specifically engineered for the protection of power semiconductors. Optimized for automotive EV drive systems, high-capacity power converters, and energy storage, it provides superior short-circuit protection with a 50kA DC breaking capacity and high thermal stability under demanding industrial conditions.
| Product ID (MPN) | RS309-MD-125A |
| Rated Voltage | 500VAC / 500VDC |
| Rated Current | 125A |
| Breaking Capacity | AC 200kA / DC 50kA (τ ≤ 15ms) |
| Utilization Category | aR |
| Size Code | 5ZA |
| Pre-arcing I²t | 1250 A²s |
| Total Clearing I²t | 3700 A²s |
| Rated Power Loss | 28W |
| Mounting Bolt | M8 Bolt Connection (12±1N.m Recommended Torque) |
| Standards | UL248, IEC60269, RoHS, CE, TUV |
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