gefran GTF Plus Installation And Operation Manual page 23

Connection example 2-phase GTF 25-120A (Master) with GTS (slave) for one load 3-phase
Figure 32
CONNECTION 2-PHASE GTF WITH GTS SLAVE
Connection example GTF 25-120A (with N. 3 GTF) for 3-phase star load with neutral
Figure 33
CONNECTION 3 GTF 3-PHASE STAR LOAD WITH NEUTRAL
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80960_MHW_GTF_01-2012_ENG