ISO 17612:2004规定了在农业拖拉机和机械的封闭操作台内传输12 V电力的连接器及其插头的基本接口尺寸。该装置旨在用作非环境密封、方便的电源辅助装置，为操作员提供一种获取电力的方式，而无需改变拖拉机/机器的电气接线线束。指定设备的最大电流容量为30 A:不适用于任何其他电压系统（6 V或24 V）。

ISO 17612:2004 specifies the essential interface dimensions of a connector and its plug for the transmission of 12 V electrical power within the enclosed operator station of agricultural tractors and machinery. The device is intended to be used as a non-environmentally sealed, convenient source for power auxiliary devices, providing a means for the operator to obtain electrical power without altering the tractor/machine electrical wiring harness. The maximum current capacity of the specified device is 30 A: it is not applicable to any other voltage system (6 V or 24 V).