Battery isolator switch. Fused bypass that maintains computer settings, radio and clock, while the battery is disconnected. Fits both 12V & 24V batteries. RoHS Compliant. Fitting instructions are available at www.sealey.co.uk.Specifications:Model No BTANT1224VBrand: SealeyContinuous Rating: 125ACrank Rate: 500ANett Weight: 0.14kgVoltage: 12V-24V