Sinofuse EV315-L-3EC50A Electric Vehicle Fuse, 50A 500V DC, High-Speed Bolt-on - Pack of 10

The Sinofuse EV315-L-3EC50A is a high-performance DC fuse engineered for the protection of high-power auxiliary circuits and power distribution systems in Electric Vehicles (EV) and Hybrid Electric Vehicles (HEV). With a 50A current rating and a 500V DC voltage rating, this fuse is optimized for mission-critical components such as Power Distribution Units (PDU), high-capacity On-Board Chargers (OBC), and secondary battery protection circuits.

Built to comply with automotive-grade standards including ISO 8820 and JASO D622, the EV315 series is designed to function reliably under extreme mechanical conditions, including high-frequency vibration and high-impact shock. The high-speed clearing capability ensures a very low let-through energy (I²t), providing robust protection for sensitive power semiconductors and high-voltage DC components. Its 3EC bolt-on terminal configuration ensures a high-torque, stable, and low-resistance electrical connection, making it ideal for the vibration-heavy environments characteristic of automotive applications.

Technical Specifications

• Manufacturer: Sinofuse (Xi'an Sinofuse Electric Co., Ltd.)
• Model Number: EV315-L-3EC50A
• Current Rating: 50A
• Voltage Rating: 500V DC
• Interrupting Rating (Breaking Capacity): 20kA @ 500V DC
• Mounting Type: Bolt-on (3EC Terminal Type)
• Pre-arcing I²t: 950 A²s
• Total Clearing I²t: 3200 A²s (@ 500V DC)
• Power Dissipation (Loss): 9.0W
• Operating Temperature Range: -40°C to +125°C
• Standards Compliance: ISO 8820, JASO D622, GB/T 31465, RoHS
• Primary Application: Power Distribution Units (PDU), High-Power OBC, Auxiliary Battery Systems
• Quantity: Pack of 10