SINOFUSE EV323-3NL500A EV323 Series DC Semiconductor Fuse, 500A, 250VDC, 50kA Breaking Capacity
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The Sinofuse EV323-3NL500A is a 3NL bolted DC fuse rated at 500 A and 250 VDC. This exact variant has a 50 kA breaking capacity at L/R ≤ 5 ms, with 38430 A²s pre-arcing I²t and 198450 A²s clearing I²t.
| Model | EV323-3NL500A |
| Size Code | 3NL |
| Rated Current | 500 A |
| Rated Voltage | 250 VDC |
| Breaking Capacity | 50 kA, L/R ≤ 5 ms |
| Pre-arcing I²t | 38430 A²s |
| Clearing I²t | 198450 A²s |
| Power Dissipation | 63 W |
| Installation | Bottom-out bolted connection, M8 mounting bolt, recommended torque 12 N·m |
The EV323 series is specified for road-vehicle applications including electric vehicle drive power systems, power conversion systems, energy storage and traction batteries, energy storage capacitors, frequency converters, chargers, conductors, and other vehicle equipment requiring short-circuit, overload, or backup protection.
Apexon Supply provides B2B sourcing and replacement support for Sinofuse EV323-3NL500A, helping procurement and maintenance teams review verified electrical and installation specifications for technical alignment.
For RFQ support, submit EV323-3NL500A, required quantity, and application requirements. Most qualified RFQs receive a response or quote within 12 hours.
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