LST EN 61643-331-2004 Components for low-voltage surge protective devices. Part 331: Specification for metal oxide varistors (MOV) (IEC 61643-331:2003)
2004LST EN 61643-331-2004 Components for low-voltage surge protective devices. Part 331: Specification for metal oxide varistors (MOV) (IEC 61643-331:2003)