GEM for 6KW to 12KW systems
The standard GEM controller unit is designed to drive a standard 3KW load. This is usually sufficient for producing domestic hot water from 1-4KWp solar PV systems.
If GEM is to be used in higher power applications such as large hot water accumulators or swimming pool heating in large PV and/or wind generator installations then a higher output power than 3KW will probably be needed.
GEM can be used with standard contactors to increase the GEM output capability to 6KW, 9KW or 12KW.