Contacts configuration4 Changeover / 4PDT Form-CGeneral standardsIEC 61000, IEC 60947, IEC 60255 and ANSI C37.90Burden configurationESI 48-4 EB1: 1983 Low Burden
ESI 48-4 EB2: 1983 High BurdenSocketsF type sockets / F large sockets for flush mounting sockets
