DIN EN 60077-4:2004 Railway applications - Electric equipment for rolling stock - Part 4: Electrotechnical components - Rules for AC circuit-breakers (IEC 60077-4:2003); German version EN 60077-4:2003
2004DIN EN 60077-4:2004 Railway applications - Electric equipment for rolling stock - Part 4: Electrotechnical components - Rules for AC circuit-breakers (IEC 60077-4:2003); German version EN 60077-4:2003