MSTB 2,5/ 3-ST Pluggable Terminal Block, 5 mm, 3 Ways, 24AWG to 12AWG. The MSTB 2,5/ 3-ST is a 3-position green pluggable PCB Terminal Block with tin-plated solder contacts, a polyamide insulator and the M3 screw connection. This 1754465 terminal block provides individual position coding by inserting coding profiles. It accepts 24 to 12AWG wire range.