The MP-303 Load Selector (MTI.AWS.EK.303) provides x6 channels for measuring the IV curves of connected PV modules in combination with the MP-160 I-V Tracer and can be kept at MPPT conditions with an optional load. The optional load can be a passive load, an electronic load or power optimiser that is connected to the inverter and grid. In total x8 units of the MP-303 can be connected to one MP-160.