Extension warranty up to 3 years for the following EATON series/models: • Eaton 9SX 8/11kVA• Eaton 9PX 8/11kVA **• Eaton 9PX 3:1 6/8/11kVA* Warranty+ is valid for simultaneous purchase of each of the above products only. ** Units in parallel need to have 1 contract each.