Yokogawa Electric Corporation STB4S-00 Terminal Module

The Yokogawa STB4S-00 Terminal Module (Style S2) is a pressure-clamp terminal block that provides direct wiring of digital signals from field devices to Yokogawa digital I/O modules, eliminating intermediate relay boards and signal cables for simpler panel layouts and higher reliability. This single-configuration, non-redundant module supports 8- or 16-channel configurations and uses pressure-clamp direct wiring, with no built-in surge absorber included. It is compatible with digital I/O modules such as SDV144, SDV531, and SDV541, and weighs approximately 0.2 kg, designed for installation inside a control panel or I/O rack in industrial environments. Common applications include interfacing switches, relays, and sensors with automation I/O in oil and gas, chemical processing, LNG plants, and power generation.