This interface allows seamless integration of an ACMaster inverter into every MasterBus network. This Allows control of the Ac Master inverter and is suitable for all AC Master inverters with a RJ11 serial interface(all 700w models and up). Other Details: MasterBus powering: Dimensions H x W x D mm:66 x 78 x 32 MasterBus powering:± 0.7kg MasterBus powering:IP21