Power distribution module for Modicon STB: 4A, 24 VDC, 30C, PV: 03, SV: 00.00, RL: 13, Dom: 1319, SN: DB131990711. The Schneider Electric STB PDT 3100 is an industrial control system designed for use in a variety of applications. It offers a range of features and benefits including an intuitive user interface, advanced communication capabilities, and a robust design. This system is ideal for use in manufacturing, power generation, and other industrial applications. It can be easily purchased from PLC2Day.