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The direction of the rotary field is indicated.
signifies supposed phase L1 is actual phase L1 and
supposed phase L2 is actual phase L2
==> right rotary field
signifies supposed phase L1 is actual phase L2 and sup-
posed phase L2 is actual phase L1
==> left rotary field
When re-testing with exchanged test probes, the opposite
symbol must be illuminated.
L1
L2
L3
N
PE
L
L1
L2
L3
N
PE
R
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