Elobau 485 EPR 04 eloProg relay module The relay modules have 2 NO + 1 NC or 4 NO + 2 NC force-guided relay contacts.These are capable of 6 A and 250 VAC each. To permit feedback monitoring, the modules feature one or two additional NC contacts.+ 2 relay outputs (485EPR02) 6A/250VAC+ 4 relay outputs (485EPR04) 6A/250VAC+ 1 or 2 NC feedback contact