Powerbox is our solution for remote electronic main switch for cars where it´s needed. Remote location gives safety when can locate switch near battery and cut power from supply line.There is 2 wires where comes on/off switch and also there is aux power line what can shut down engine if needed. Very high quality M8 terminals for battery connection.
PowerBox HC goes up to 300A.
More info: https://www.spleinonen.com/