DIN 43589-1
DIN 43589-1 Connector for battery powered industrial trucks 80, 160, 320 A, 150 V - Part 1: Connecting dimensions, material, marking
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 08/01/1994
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 08/01/1994