Sinofuse EV315-3EN50A Electric Vehicle Fuse, 50A 500V DC, High-Speed Bolt-on - Pack of 10

The Sinofuse EV315-3EN50A is a high-performance, high-speed DC fuse specifically engineered for the rigorous overcurrent protection demands of Electric Vehicle (EV) and Hybrid Electric Vehicle (HEV) power systems. Featuring a 50A current rating and a 500V DC voltage threshold, this fuse is an essential safety component for protecting intermediate power circuits, high-voltage Power Distribution Units (PDU), and battery monitoring systems.

Constructed to meet stringent automotive standards, the EV315-3EN50A is built to maintain structural and electrical integrity under extreme vibration, mechanical shock, and thermal fluctuations. Its fast-acting clearing characteristic is optimized to provide exceptional current limitation and low let-through energy (I²t), safeguarding high-power electronics and wiring harnesses against short-circuit events. The 3EN terminal series utilizes a secure bolt-on architectural design, ensuring a gas-tight, low-resistance connection that prevents contact degradation over the vehicle's service life.

Technical Specifications

• Manufacturer: Sinofuse (Xi'an Sinofuse Electric Co., Ltd.)
• Model Number: EV315-3EN50A
• Current Rating: 50A
• Voltage Rating: 500V DC
• Interrupting Rating (Breaking Capacity): 20kA @ 500V DC
• Mounting Type: Bolt-on (3EN Terminal Type)
• Pre-arcing I²t: 520 A²s
• Total Clearing I²t: 2080 A²s (@ 500V DC)
• Power Dissipation (Loss): 9.5W
• Operating Temperature Range: -40°C to +125°C
• Standards Compliance: ISO 8820, JASO D622, GB/T 31465, RoHS
• Primary Application: EV/HEV PDU Systems, DC/DC Converters, High-Voltage Auxiliary Circuits
• Quantity: Pack of 10