Allen Bradley, 1492 End Barrier for use with 1492-L3Q, L3QS, LG3Q

The Rockwell Automation end barriers are required to provide the necessary insulation for the last terminal block in a group.

End barrier for spring clamp terminal block
This has yellow colour

End Barrier, For Spring Clamp Type TB, 2 x 30.6 x 79mm (0.08 x 1.20 x 3.11 in), Yellow, Pkg. Qty. of 50, for Use With 1492-L3Q, L3QS, LG3Q

End Barrier, For Spring Clamp Type TB, 2 x 30.6 x 79mm (0.08 x 1.20 x 3.11 in), Yellow, Pkg. Qty. of 50, for Use With 1492-L3Q, L3QS, LG3Q