These connectors should not be mated or unmated under electrical load. Connectors of the same or different types arranged in a line should be polarised to prevent the possibility of a wrong connection. UL, CSA, SEV. The parallel action crimp tool requires locator stock no. ; 114-7920 114-7920. Han E® 16A Crimp Series. Harting contact inserts have a wide range of uses. Inserts are selected according to the desired number of poles and voltage and current ratings. Current rating 16A Working voltage 500V 6 to 24 poles Crimp contacts must be ordered separately – option of 1.5mm² and 2.5mm²