GIGAVAC GX110 1000 AMP CONTACTOR RELAY
This is the highest power contactor relay we have found. It will do 1000 amperes of current continuously at up to 800volts and 5000 amperes for up to 10 seconds. It is overkill for most electric vehicle builds but for the ultimate in safety and power switching capability, this is the 800 lb gorilla.
Relay is normally open. Coil powered by 12v. Draws up to 5.6 amps to close but holds position with 1.3 amps at 12v. No coil suppression diodes required as internal coil suppression is provided.
The ultimate contactor. We haven't found anything larger.
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