contactor position lines connect to said signal contacts for transmitting {HEAD ~ information} about {TAIL ~ positions} of the three phase contactors 
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contactor position lines connect to said signal contacts for transmitting { HEAD ~ information } about { TAIL ~ positions } of the three phase contactors
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH