Nissan Leaf Precharge Unit

Use Cases

The contactor box after being opened

These contactor boxes are great because they are an all-in-one package that comes pre-wired and can handle a relatively large amount of power. You don't have to do any fancy CAN framing or specific sequencing, just provide 12v at a specified location and you're good to go.

Ratings

The precharge resistor is 30 ohm (+/- 5%) rated and is apparently rated for 40w continuous. It can handle 15 amps for short periods, however.

The precharge relay (Panasonic AEV6501C) doesn't have a datasheet anywhere, but it's fine for at least 15 amps for short periods and 400 volts.

The positive and negative contactors (Panasonic AEV6505A) are rated for 200a continuous and 500v. Coil voltage 11-20v.

Wiring

A labeled picture of the precharge relay.