In EV application, contactors usually carry current only, switching is very rare. At first vehicle Key-On, contactor will engage/ close circuit, and at vehicle Key-Off contactor will disengage.
Some of the most common contactors and prices:
- GX11BA or GX11CA (150A rating): $144
- GX12BA or GX12CA (225A rating): $150
- GX14BA or GX14CA (350A rating): $192
- GX16BE or GX16CE (600A rating): $308
- Adding auxiliary contacts (for position feedback) adds $20 to these prices.
Note some key applications notes for use with contactors: