Operating Instructions Z-D-15/35/55E-..
Installation instructions
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L-BAL-E321-GB 2021/11 Index 002
22/44
5.3.4
Current transformer wiring
Terminal label
Function / Terminal
CT_A
CT S1 in Phase A
（
L1
）
GND
CT S2 in Phase A (L1.1)
CT_C
CT S1 in Phase C
（
L3
）
GND
CT S2 in Phase C (L3.1)
PE
Protective wire / screening
Remark: To achieve best performance of Z-D-15/35/55E-.. the pairs CT_A+GND and CT_C+GND
should be twisted.
Exemplary illustraiton of current transformer: Connection of S1 and S2:
One times passage:
Two times passage
PE GND CT_C
GND CT_B
GND CT_A
