The Rockwell, 1492 series Centre Jumper has 6mm centre to centre and yellow colour. This centre jumper is insulated and is available in 4-pole configuration. It is used with 1492-L4, L4T, L4Q, LD4DF, LD4DR, LD4SS, LD4, LD4C, L16D.
It is plug-in type jumper