The electrical contactor 8, wherein said controller generates {HEAD ~ said pulse width modulated signal} at a frequency of {TAIL ~ approximately 2 KHz} 
The electrical contactor 8 , wherein said controller generates { HEAD ~ said pulse width modulated signal } at a frequency of { TAIL ~ approximately 2 KHz }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL