Kopo JR28s series overload overload relay e loketse tshireletso e feteletseng le ho hloleha ha mohato oa li-motors tsa AC tse nang le maqhubu a 50/60Hz, voltage ho fihla ho 690V, hajoale ho fihla ho 0.1-630A tlasa mosebetsi oa lihora tse 8 kapa mosebetsi o sa sitisoeng. Mesebetsi e fanoeng ke li-relay tsena, ke ts'ireletso ea ho hloleha ha mohato, sesupo sa HO ON/OFF, matšeliso a mocheso, le ho seta bocha ka letsoho / ka boiketsetso. Maemo a Machaba: IEC 60947-4-1 Li-relay li ka kenngoa ho li-contact kapa tsa kenngoa e le li-unit tse le 'ngoe.