Lewmar Automatic Bow Thruster Safety Shut-Off Switch - Gen2 ABS 12VAn important safety option. When the thruster control panel is activated, the Automatic Battery Safety Switch will automatically connect the thruster main power source when it senses a command; it will also automatically disconnect the power supply when it senses a lack of thruster activity for 10 minutes even if the panel has not been switched off yet. This averts possible thruster activation by a child or someone sitting on the joystick control