Sinofuse EV315-M-5N-300A Electric Vehicle Fuse, 300A 500V DC, High-Speed Bolt-on

The Sinofuse EV315-M-5N-300A is a high-performance DC fuse engineered for specialized circuit protection in Electric Vehicles (EV) and Hybrid Electric Vehicles (HEV). With a 300A rating and 500V DC operating voltage, this component is designed to secure high-power distribution systems, including main battery paths and auxiliary power circuits.

The "M-5N" terminal design features a specialized bolt-on configuration that provides exceptional electrical contact and stability under high-vibration and thermal-shock conditions common in automotive and heavy-duty industrial applications. As a high-speed fuse, it offers ultra-low let-through energy (I²t), effectively safeguarding power semiconductors and high-voltage energy storage systems from catastrophic failure during short-circuit events. It is built to comply with global automotive safety standards, ensuring long-term durability and reliability for OEM and replacement sectors.

Technical Specifications

• Manufacturer: Sinofuse (Xi'an Sinofuse Electric Co., Ltd.)
• Model Number: EV315-M-5N-300A
• Current Rating: 300A
• Voltage Rating: 500V DC
• Interrupting Rating (Breaking Capacity): 20kA @ 500V DC
• Mounting Type: Bolt-on (M-5N Terminal Style)
• Pre-arcing I²t: 24500 A²s
• Total Clearing I²t: 83500 A²s (@ 500V DC)
• Power Dissipation (Loss): ≤ 46.0W
• Operating Temperature Range: -40°C to +125°C
• Standards Compliance: ISO 8820, JASO D622, UL 248-20, RoHS
• Primary Application: EV/HEV Battery Pack Protection, PDU, Traction Inverters