m-Series Mini Dual Circuit Plus Battery Switch – BlackSimultaneously switches two isolated battery banks or combines battery banks to all loads. Make before break contact design allows switching between battery banks without power interruption.Switch Type: Dual Circuit PlusColor:BlackSwitch Positions:3Battery Combine:YesAlternator Field Disconnect: NoMaximum Voltage:32V DCContinuous Rating :300AIntermittent Rating :450A (5 min)Cranking Rating 10 sec: 1000ACranking Rating 1 min: 650ABattery Inputs:2Cable Clearance For 4/0 AWG Cables:1.12in (28.45 mm)Cable Size to Meet Ratings:4/0 AWG (120mm)Mounting Holes: Accept #10 ScrewTerminal Stud Size:3/8″-16 (M10)Terminal Stud Torque:120 in-lb (13.56 Nm)Weight:0.80lb (0.36 kg)WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Specifications:AFD: NoPositions: 3Continuous Amperage: 300aBox Dimensions: 3″H x 4″W x 7″L WT: 0.6 lbsUPC: 632085601126Owner’s Manual (pdf)