Contactors used for both safety and high voltage switching. They are basically a heavy duty relay used to switch the high dc voltage that is derieved from the main battery. They are used for the motor drive, the heating and cooling systems, the DC-DC converter, the charger and anything else that draws more than a few amps from the main battery.
With the MX-5e we plan to use the following contactors:
The contactors are enabled in this sequence to prevent damage.