String Inverters General Descriptions:SG2K5TL/3KTL/4KTL-31 is a transformerless ... cable connection under any circumstances. It can be used for string-connected outdoor small PV power station, or individually for a ... -6-1, EN61000-6-2, EN61000-6-3, EN61000-6-4,EN61000-3-2, EN61000-3-3, EN60164-1-1, EN55022 ...