The OutBack PSX-240 (6kVA) autotransformer can be used for 120 to 240VAC step-up or 240 to 120VAC step-down applications, generator balancing, general split-phase output balancing, or balancing the outputs of series-stacked inverters. Incorporating a transformer with 120 VAC / 30 AAC primary and secondary side, a temperature-activated cooling fan and a 25 AAC dual-pole breaker in a steel enclosure, the PSX-240 is ready to install in your custom application. Use for 120/240VAC, 60 Hz systems only.