GM Metripack 630 uses large 6.3mm contacts for high-current applications in GM vehicles including starter motors, alternator connectors, and high-power relay sockets.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | Power+ | High current power positive | PWR |
| 2 | Signal | Control signal | I/O |
| 3 | GND | Ground | GND |