Sinofuse EV315-3EN30A Electric Vehicle Fuse, 30A 500V DC, High-Speed Bolt-on - Pack of 10

The Sinofuse EV315-3EN30A is a heavy-duty, high-speed DC fuse engineered for the advanced overcurrent protection requirements of Electric Vehicle (EV) and Hybrid Electric Vehicle (HEV) power systems. Featuring a 30A current rating and a 500V DC capacity, this component is designed for deployment in medium-power auxiliary circuits, air conditioning systems (PTC heaters/compressors), and Power Distribution Units (PDU).

As a specialized automotive-grade component within the EV315 series, it is built to withstand extreme mechanical stress, including high-frequency vibrations and shock loads typical of vehicle chassis mounting. The high-speed response profile ensures rapid circuit interruption during fault conditions, effectively minimizing let-through energy (I²t) to protect sensitive semiconductor devices and wiring harnesses. The 3EN bolt-on terminal configuration ensures a high-integrity, gas-tight electrical connection, providing low contact resistance and long-term reliability in harsh automotive environments.

Technical Specifications

• Manufacturer: Sinofuse (Xi'an Sinofuse Electric Co., Ltd.)
• Model Number: EV315-3EN30A
• Current Rating: 30A
• Voltage Rating: 500V DC
• Interrupting Rating (Breaking Capacity): 20kA @ 500V DC
• Mounting Type: Bolt-on (3EN Terminal Type)
• Pre-arcing I²t: 125 A²s
• Total Clearing I²t: 500 A²s (@ 500V DC)
• Power Dissipation (Loss): 6.5W
• Operating Temperature Range: -40°C to +125°C
• Standards Compliance: ISO 8820, JASO D622, GB/T 31465, RoHS
• Primary Application: EV/HEV Auxiliary Power, Climate Control Systems, Power Distribution Units (PDU)
• Quantity: Pack of 10