AC contactor 110V model CN-11 labeled L1L2L3L4 how to have 4-phase no normally open or normally closed contacts?

This is so; AC contactor 110V model CN-11 is a Taiwan Ann contactor model, on the labeling L1L2L3L4 should not be 4 this character, it should be OFF or NO, this is the labeling of normally open or normally closed subsidiary contacts. With other contactor labeling should be missing a labeling point. For example, such as the labeling of the back and then add -10 or -01, such a labeling, it will be very clear, is normally open, or normally closed contacts.