EV relay is a very critical safety device in electric vehicles, it is used between the battery pack system and inverter to play as an isolating or connecting/disconnecting role, and it’s also used between the external charger and vehicle battery. Thus, it’s requires high-voltage and high current resistance durability, must be in compact size, high arc extinguishing safety and stable breaking capabilities.

HOTSON supply diverse EV relay portfolio from a nominal 10A continuous current up to 600A continuous current, switching DC load from 12VDC to 1500VDC. These small sized units are hermetically sealed with epoxy or ceramic capsule, contact chamber are filled with Nitrogen gas or Hydrogen gas, which ensures quick arc-extinguish. It’s designed to be used very harsh environment without oxidation or contamination.
We offer EV relay in different shapes, such as round shell and square shell, no position sensitive, can be installed horizontal or vertical. All EV relays are eco-friendly designed with bi-directional contact, optional with auxiliary contact, contact terminal with wire or connectors, you can choose single coil, dual coil and PWM coil, and coil voltage is available from 12Vdc to 72Vdc.

All our EV relay are cost-effective, perfect choice between high performance and lean budget. It all passed CCC, CE and some are UL certified.

More important, we accept OEM or ODM service.