2NC ዝግጅት ናቸው, ሦስት, በዚያ ለመቀረጽ ናቸው Le ≤ 32A contactors ውስጥ Le ≤ 22 ሀ contactors ውስጥ ምንም arcisolated panle ናቸው ናቸው-መንሸራተቻ ቅስት ተገልለው ፓነል ጋር.
The ojambula wothandiza imakonzedwa 2NO.2NC ambiri, ndi ntchito lanu kugwirizana kusintha pakati thandizo kukhudzana ndi pakati, atatu palibe panle arcisolated mu Le ≤ 22A contactors, mu Le ≤ 32A contactors, pali kuumbidwa ndi-chute ndi gulu Arc-zokhazi.