OutBack PS4AC AC Breaker Panel The OutBack Power System large AC Enclosure was formally known at the PSAC. No Breakers or bypasses are included. OutBack Power Systems has developed a single box solution for all of the AC components of a renewable energy system. The PS4AC saves time, money and space by combining all of the disconnects, overcurrent protection, grounding and transformer components into an easy to install, single enclosure. The PS4AC is easily modified and expanded as your system grows or changes.The OutBack PS4AC provides the AC electrical system overcurrent protection, disconnect and bypass functions for one or two inverters, a utility connection and a back-up generator connection.The PS4AC can accommodate both Square-D QOU and OutBack OBAC breakers. It can also function as a load distribution panel for AC loads. An optional X-240 autotransformer can be included to step AC power up or down to match load requirements or to balance a generator split phase output. The PS4AC is designed to accompany up to four OutBack FX inverter/chargers, two Xantrex/Trace SW or DR inverters.The PS4AC can be configured with up to 16 Square-D QUO or OBAC breakers and a X-240 step-up/step-down autotransformer. The enclosure includes standard a ground terminal bus, an isolated neutral terminal bus and an isolated hot terminal bus. The PS4AC enclosure is shipped without the circuit breakers installed and is not pre-wired. A wiring diagram is included on the inside of the door which provides an example of typical system configuration. The PS4AC is a NEC compliant enclosure engineered to contain all the AC overcurrent protection and power management components. ETL listed indoor type powder coated steel enclosure with pleny of knockout and mounting provisions for a variety of OutBack products Order all required AC breakers separately. Ground terminal bus bar bonded to cabinet One white insulated AC neutral terminal bus bar Two black insulated AC hot/leg 1 terminal bus bars Two red insulated AC hot/leg 2 terminal bus bars Space provided for up to 13 additional OutBack AC load breakers Provisions for mounting an X-240 autotransformer and optional cooling fan Knockouts on five surfaces to facilitate conduit and inverter connections