0P4200 | American Power Conversion | PCB ASSY EXT SW GEAR 640-4120 | Code: 0P4200, PCB ASSY EXT SW GEAR 640-4120, please visit manufacturer website and select your region or go to shop: http://www.apc.com/shop/us/en/categories and write into search box: PCB ASSY EXT SW GEAR 640-4120 or 0P4200. | $ | |