The 2967138 is a PLC-INTERFACE relay module consisting of a PLC-BSC basic terminal block and a plug-in miniature relay. It is designed to operate with an input voltage of 120 V AC or 110 V DC. This module features two PDT (Double Pole Double Throw) contacts with a multi-layer gold plating for reliable switching of low-level signals. Key features include a slim 14 mm design for DIN rail mounting, an integrated input and interference suppression circuit, and safe isolation between the coil and contact according to DIN EN 50178. Its robust design and wide operating temperature range make it suitable for various industrial control and automation applications.