SB1221 Digital Signal Board Module 6ES7221-3BD30-0XB0 / Unitronics PLC Controller – Feature Listing
High-precision digital signal board with industrial-grade durability, designed for seamless integration into Siemens SIMATIC S7-200 systems. Features 16 digital inputs for real-time data acquisition, robust 24V DC compatibility, and screw-type terminals for secure wiring. Compact DIN-rail mounting saves panel space without compromising performance. Premium flame-retardant PC/ABS housing ensures long-term reliability in harsh environments, from factory automation to energy management. Backed by Unitronics" advanced PLC technology, enabling smart home automation, HVAC control, and scalable IoT solutions. Direct bulk pricing with guaranteed lowest global rates—ideal for OEMs, system integrators, and large-scale industrial projects. Stock ready for fast dispatch worldwide.