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SINOFUSE RS309-MD-1000A RS309-MD Series High-Speed Fuse, 1000A, 500VDC

Regular price $110.00 USD
Regular price Sale price $110.00 USD
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The SINOFUSE RS309-MD-1000A is an ultra-high-capacity cylindrical bolt-connected high-speed fuse engineered for the protection of large-scale power semiconductors. Designed for heavy-duty electric vehicle (EV) fleet charging infrastructure, industrial power grid conversion, and high-wattage energy storage systems, it delivers premier fault isolation with a 50kA DC breaking rating and superior durability against mechanical shock.

Product ID (MPN) RS309-MD-1000A
Rated Voltage 500VAC / 500VDC
Rated Current 1000A
Breaking Capacity AC 200kA / DC 50kA (τ ≤ 15ms)
Utilization Category aR
Size Code 9RA
Pre-arcing I²t 180000 A²s
Total Clearing I²t 570000 A²s
Rated Power Loss 145W
Mounting Bolt M12 (Recommended Torque 28±1N.m)
Compliance UL248, IEC60269, RoHS, CE
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