marstek 63a 110/120v triple power automatic transfer switch,automatic switching between utility power?generator and inverter,overcurrent protection,overvoltage and undervoltage protection triple power 63a is up for auction in Tools & Home Improvement. The current bid is $1.50, 97% below the $44.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.