Reliable and Efficient The CMS-4000 is a DC/AC inverter designed specifically for solar grid feed installations. It was designed to be both reliable and highly efficient. The CMS-4000 is a true sine wave inverter, operating from a PV solar array power source (DC) and generates 240VAC, 50Hz current output for direct connection to the power grid. The CMS-4000 is proven to be an excellent PV inverter and as such is able to convert the maximum power from any PV panel(MPPT). Due to its advanced design the CMS-4000 inverter can track the maximum power from your PV array in any condition The CMS-4000 complies with AS4777, AS3100 and C Tick.