spare part - Modicon M221 battery holder - sold by 2 This set of 2 battery holder is designed for Modicon M221 and M221 Book logic logic controllers. It s used to hold the battery in Modicon M221 and M221 Book logic logic controllers. Its dimensions are 34.8mm height, 25.5mm width. It weighs 0,130Kg. This product is certified by CE, IACS E10, CSA, RCM, LR, ABS, DNV-GL, EAC and CULus. It meets EN/IEC 61010-2-201, EN/IEC 61131-2 and EN/IEC 60664-1 standards.