Link has been copied to clipboardBattery Disconnect & Power Distribution - Truck & Bus
Li-ion battery disconnect switches ensure EVs and electric buses remain charged while parked. Power distribution units that incorporate overcurrent protection, solid-state relays, and overvoltage protection devices such as TVS diodes also ensure reliable battery system management. Littelfuse delivers these solutions and others with off-the-shelf, customized, AEC-Q–qualified components.
Product Categories
Fuses
Explore our full range of fuse types and sizes. As a leading manufacturer of electrical components, we offer a broad selection of fuse types, such as electrical and industrial fuses. Our industrial fuses are designed to deliver reliable overcurrent protection across a wide range of applications. From power and automotive fuses to axial, cartridge, surface-mount, specialty, and medium-voltage options, our solutions ensure safe and efficient current regulation for virtually any system or device.
High Voltage DC Contactor Relays
Electric vehicles and industrial electronic control systems demand reliable, high-performance power management solutions. Littelfuse High-Voltage DC Contactor Relays are engineered to meet those demands with robust switching capability, long electrical life, and circuit protection across a wide range of applications, including Hybrid Electric Vehicles (HEVs), Battery Electric Vehicles (BEVs), eMobility, electric maintenance and transport vehicles, material handling equipment, industrial machinery, and energy storage systems.
Our portfolio includes models with continuous current ratings from 30A to 800A and maximum voltage ratings up to 1800V DC, supporting both low- and high-power system requirements. A full range of configurations are available to meet specific design needs, including options with non-polarized or polarized contacts, auxiliary contacts, and coil-economizer technologies such as pulse-width modulation (PWM) and double-coil economizer designs to reduce power consumption and heat generation.
Also designed for use in industrial applications, such as EV charging infrastructure, battery packs, uninterruptible power supplies, DC fast-charging, motor control, circuit insulation, circuit protection, and safety-critical systems, our High-Voltage DC Contactors deliver safe, reliable performance in demanding environments.
Browse our off-the-shelf High-Voltage DC Contactors or partner with us to develop a custom solution for your next design.
Our portfolio includes models with continuous current ratings from 30A to 800A and maximum voltage ratings up to 1800V DC, supporting both low- and high-power system requirements. A full range of configurations are available to meet specific design needs, including options with non-polarized or polarized contacts, auxiliary contacts, and coil-economizer technologies such as pulse-width modulation (PWM) and double-coil economizer designs to reduce power consumption and heat generation.
Also designed for use in industrial applications, such as EV charging infrastructure, battery packs, uninterruptible power supplies, DC fast-charging, motor control, circuit insulation, circuit protection, and safety-critical systems, our High-Voltage DC Contactors deliver safe, reliable performance in demanding environments.
Browse our off-the-shelf High-Voltage DC Contactors or partner with us to develop a custom solution for your next design.
TVS Diodes
Transient voltage suppressor (TVS) diodes defend against damage from overvoltage events by responding within picoseconds to shunt current to ground. The classic example of TVS diode use is protecting outdoor telecom equipment from lightning strikes. Littelfuse produces surface mount and leaded diodes and TVS diode arrays for that, as well as TVS diodes for cars, personal electronics, data cables, and household appliances. Consult our Circuit Protection Selection Guide to guide your search for a solution.