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Sinofuse RS309-MD-EVS250A RS309-MD-EV Series Round Tube Bolt-on Fuse, 250A, 500VDC
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$40.00 USD
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The Sinofuse RS309-MD-EVS250A is a high-performance round tube bolt-on fuse engineered for the rigorous demands of electric and hybrid vehicle (EV/HEV) power systems. Featuring a compact footprint and exceptional vibration resistance, this 250A fuse provides reliable short-circuit and overload protection for power conversion systems, battery storage, and motor controllers in industrial and automotive environments.
| Product ID (MPN) | RS309-MD-EVS250A |
| Rated Current | 250A |
| Rated Voltage | 500VDC |
| Breaking Capacity | 20kA DC (Time Constant: 2.0±0.5ms) |
| Power Dissipation | 35W |
| Pre-Arcing I²t | 10100 A²s |
| Total Clearing I²t | 27600 A²s |
| Size Code | 4ZA |
| Weight | 81±5g |
| Installation Hardware | M8 Bolt (Recommended Torque: 12±1N.m) |
| Operating Temperature | -40°C to 85°C |
| Compliance | RoHS, CE, JASO D622, ISO 8820, GB/T 31465 |
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