Yokogawa Electric Corporation STB4S-00 Terminal Module

The Yokogawa Electric Corporation STB4S-00 Terminal Module (Style S2) is a pressure clamp terminal block that provides direct wiring between field devices and Yokogawa digital I/O modules, eliminating the need for intermediate interface boards in control systems. Designed for stable operation in industrial automation, it securely terminates signals from switches, relays, and sensors to digital I/O modules, improving wiring efficiency and reducing installation complexity. Configured as a single (non-redundant) module with pressure-clamp direct wiring, it typically supports 8 or 16 I/O channels and mounts in a control panel or I/O rack. It is compatible with Yokogawa SDV144, SDV531, and SDV541 series digital I/O modules, with surge absorber not included as part of the standard type.