Siemens 3SB1400-0G is a red pushbutton auxiliary contact block designed to attach to 22 mm and 30 mm Siemens pushbutton heads, expanding the switching capability of a control station. It provides two normally open (2NO) contacts rated for 6 A at 230 V AC, enabling simple signaling in automation circuits. The block is intended for use with compatible 3SB pushbutton indicators to add auxiliary contact functionality without altering the operator action. Commonly used for status signaling and control logic in industrial panels, it supports reliable signaling in machine automation and interlocked control schemes.
