How to Select Your HVDC Ceramic Contactors?
Operating Voltage
Ensure that the rated operating voltage of the EV contactor aligns with the voltage specifications of the electric vehicle system.
Operating Current
Choose an EV contactor with ample carrying capacity to meet the current load demands of the electric vehicle system.
Short-Circuit Current
Determine the expected short-circuit current in the electric vehicle system and select an EV contactor capable of handling this current safely.
Pre-Charging Control
Consider the pre-charging resistance, pre-charging time, and pre-charging current in the electric vehicle system. Choose an EV contactor that facilitates a stable pre-charging process.
Turn-On Life
Determine the required turn-on life based on voltage differences and current during turn-on. Select an EV contactor with an appropriate life expectancy.
Cut-Off Life
Consider abnormal conditions in the electric vehicle system that may require cutting off with a load. Select an EV contactor with a suitable cut-off life.
Mechanical Environment
Based on the installation location and application environment within the electric vehicle, choose an EV contactor capable of adapting to mechanical vibration and shock.
Cut-Off Life
Consider the operating temperature environment of the EV contactor and select a contactor that can function effectively under those conditions.
Coil Control
Factor in the rated voltage of the coil drive power supply, stability of the power supply, and power supplied to meet the coil control requirements specific to the EV contactor.
