Sinofuse EV315-L-3EC40A Electric Vehicle Fuse, 40A 500V DC, High-Speed Bolt-on - Pack of 10

The Sinofuse EV315-L-3EC40A is a specialized high-speed DC fuse designed for the demanding circuit protection requirements of Electric Vehicles (EV) and Hybrid Electric Vehicles (HEV). With a 40A current rating and a 500V DC capacity, this fuse is engineered to provide superior protection for mid-range power distribution units (PDU), high-power on-board chargers (OBC), and auxiliary battery systems.

As part of the EV315 series, it is manufactured to comply with stringent automotive standards including ISO 8820, JASO D622, and GB/T 31465. It features exceptional resistance to mechanical shock, intense vibration, and cyclic thermal stress, ensuring long-term reliability in vehicle environments. The high-speed response characteristic effectively limits let-through energy (I²t) during fault conditions, preventing thermal damage to sensitive power semiconductors. The 3EC bolt-on terminal design facilitates a high-integrity, low-resistance connection essential for automotive-grade power electronics.

Technical Specifications

• Manufacturer: Sinofuse (Xi'an Sinofuse Electric Co., Ltd.)
• Model Number: EV315-L-3EC40A
• Current Rating: 40A
• Voltage Rating: 500V DC
• Interrupting Rating (Breaking Capacity): 20kA @ 500V DC
• Mounting Type: Bolt-on (3EC Terminal Type)
• Pre-arcing I²t: 550 A²s
• Total Clearing I²t: 1900 A²s (@ 500V DC)
• Power Dissipation (Loss): 7.5W
• 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 Protection
• Quantity: Pack of 10