Ocr TM 2 Pcs 12V/24V Automotive Battery Isolator Disconnector Cut OFF Power Kill Switch The key can be taken down when there is no power connection Max. withstanding current of this battery switch: 24V 400A Waterproof cover can better protect key hole Package:2 x Power switch , 4 x Key , 2 x Waterproof cover screw size,M10 x 1.25