Sinofuse EV315-3EN20A Electric Vehicle Fuse, 20A 500V DC, High-Speed Bolt-on - Pack of 10

The Sinofuse EV315-3EN20A is a professional-grade high-speed DC fuse engineered for the protection of Electric Vehicle (EV) and Hybrid Electric Vehicle (HEV) power systems. With a 20A current rating and a 500V DC voltage threshold, this fuse is specifically designed to isolate faults in auxiliary power circuits, high-voltage Power Distribution Units (PDU), and On-Board Charging (OBC) systems.

The EV315 series is manufactured to meet rigorous automotive standards, ensuring operational integrity under high-vibration, high-shock, and fluctuating thermal environments. Its high-speed clearing performance provides superior protection for downstream electronics by significantly limiting let-through energy (I²t). The 3EN terminal configuration features a robust bolt-on design, providing a secure, low-resistance mechanical and electrical connection essential for performance-critical automotive applications.

Technical Specifications

• Manufacturer: Sinofuse (Xi'an Sinofuse Electric Co., Ltd.)
• Model Number: EV315-3EN20A
• Current Rating: 20A
• Voltage Rating: 500V DC
• Interrupting Rating (Breaking Capacity): 20kA @ 500V DC
• Mounting Type: Bolt-on (3EN Terminal Type)
• Pre-arcing I²t: 45 A²s
• Total Clearing I²t: 180 A²s (@ 500V DC)
• Power Dissipation (Loss): 4.5W
• Operating Temperature Range: -40°C to +125°C
• Standards Compliance: ISO 8820, JASO D622, GB/T 31465, RoHS
• Primary Application: EV/HEV Auxiliary Circuits, Power Distribution Units (PDU), On-Board Chargers (OBC)
• Quantity: Pack of 10