MC4-Y adapter to connect 3 modules or module strings in parallel. Attention: MC4 is specified up to max. 30A, i.e. the total current with parallel connection must not exceed this value. To do this, form the sum of the currents in the Maximum Power Point – sometimes the data sheet also states “Nomianal current”. On top of that, please calculate a buffer of at least 10% so that the winter can take place (additional output due to temperatures under the test conditions in which the output of the modules is specified.)


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