EV fuses are robust fuses with various mounting options designed for use in high-voltage electric vehicle systems.
Fuses are important safety devices that protect us from short circuits or abnormal currents that can cause smoke, fire, or damage. In the pursuit of sustainable transportation, electric vehicles (EVs) have emerged as a promising solution to mitigate carbon emissions and reduce reliance on fossil fuels. With the continuous expansion of the EV market, there arises a growing need for efficient and dependable charging infrastructure. Safety stands as a paramount concern, particularly in the context of high-voltage direct current (DC) systems utilized in EV charging stations. This article delves into the role of high-voltage DC fuses within EV DC charging stations, highlighting their crucial contribution to ensuring safe and dependable charging operations.
Traditionally, the development of electric vehicle (EV) products has revolved around enhancing range and performance. EVs comprise various costly components, notably the electric motor and the battery pack. Safeguarding these components against power surges and faults, which could potentially incur significant damage and expenses, underscores the critical importance of fuses. Moreover, the selection of appropriate fuses extends beyond the confines of the EV or hybrid vehicle itself. A malfunction in the charging circuit of an EV poses significant challenges, rendering the vehicle unable to charge. Hollyfuse offers a comprehensive range of EV fuses designed specifically for vehicle systems.
Hollyfuse fuses deliver unparalleled protection for battery modules, battery packs, MSD (Motor System Drive), and PDU (Power Distribution Unit), ensuring reliable clearance of DC fault currents. These fuses have undergone rigorous engineering and testing processes to provide best-in-class performance for DC applications, contributing to the safety and longevity of EV charging infrastructure.
Hollyfuse Class of Operation:aR
Security Certificate:cURus
Application:Applied to Electric Vehicle and Charging Pile
Standard:IEC 60269-4,GB/T 13539.4,UL 248-13
What Are EV Fuses?
Electric Vehicle (EV) and Hybrid Electric Vehicle (HEV) fuses protect electrical circuits, electrical equipment and batteries in an electric vehicle from electrical faults such as overloads and short circuits. The electrical circuits in Electric vehicles utilise direct current (DC) voltage. EV fuses often feature 500Vdc or 1000Vdc ratings. Like regular fuses, the voltage rating of an EV fuse is the maximum voltage for which the fuse is designed to operate. It will still work correctly in voltages below the maximum voltage rating.
Fuse Applications for Electric Vehicles
Fuses are required to protect electrical circuits in all types of vehicles regardless of whether they have petrol or electric engines. Components like lights, radio, electric windows etc. can be protected using standard automotive fuses.
Electric vehicles also require special purpose fuses for the protection of high capacity battery packs, electric motors, power conversion devices & battery charging equipment etc. These EV fuses are specially designed to ensure safe and reliable operation of the electric vehicle. The following image illustrates the type of fuses used in the power distribution unit and auxiliary systems of the vehicle.
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H000T7EV-P Series:
Rated current: 32A-315A
Rated voltage: 750V DC
Reference standard: IEC 60269-4, GB/T 13539.4 -
HBC Series: We offer quality HBC Fuse Link, which are used within high power converters as fast protective devices against possible explosions, which might occur in the case of failures.
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Type: fast-acting
Class: Class aR
Characteristics: ceramic, DC, high-speed
Applications: for automobiles, battery
Amperage Min.: 35 A
Amperage Max.: 800 A
VAC: 1,000V
VDC: 750V -
65NM -
HC102EV-T -
HC105EV -
HE2EV Series
Hollyfuse’s electric vehicle and hybrid electric vehicle (HEV) fuses are used in EV and HEV applications for circuit protection. -
HE7EV
Fuse Applications for Electric Vehicle Charging Stations
Battery operated electric vehicles require charging stations to recharge the batteries contained within the vehicle. These charging stations are also known as Electric Vehicle Supply Equipment (EVSE). EVSE devices require circuit protection devices to ensure that any potential overload or short circuit does not pose a risk to the vehicle, charging station or user. EV Charging Stations are generally categorised into 3 levels. The fusing requirements of each varies due to the voltage and current capabilities as shown below.
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HB7EV -
HBA -
HBD -
HBE -
HEA -
H00T10EV -
6HF -
DC fuse HB5EV series
Characteristics: DC
Applications: for automobiles, battery
Amperage Min.: 50 A
Amperage Max.: 400 A
VDC: 500 V
