Twin Outboard Engine, Three Battery Banks w/Motorized VSR. The VSR and Emergency parallel switch are combined into one voltage-sensitive switch, and that switch is able to be remote-operated. The layout allows all cables to be attached from the bottom of the cluster.. Offers the same features as the 717-140A-DVSRWARNING: 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.