The neutral contacts 126a and 126b also have {HEAD ~ two ends} which overlap {TAIL ~ the varistors} 
overlap
The neutral contacts 126a and 126b also have { HEAD ~ two ends } which overlap { TAIL ~ the varistors }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL