The Pilz PSSU BS 1/8 S (312650) is a robust base module within the Pilz PSSu I/O system, engineered to provide a reliable foundation for modular automation and safety architectures. By accommodating the connection of up to eight modules, it enables engineers to build scalable and adaptable control systems tailored to the requirements of diverse industrial applications.

One of the core advantages of the PSSU BS 1/8 S lies in its design for modularity. Serving as the structural and electrical backbone, the module enables seamless integration of input, output, and communication units into a compact and organised configuration. This approach provides flexibility in designing both centralised and decentralised automation systems, while allowing easy adaptation to future system expansions or reconfigurations.

The unit’s housing construction highlights Pilz’s commitment to reliability and durability. The lower section is manufactured from polyamide (PA), chosen for its toughness and resistance to mechanical stress, while the upper section is made from polycarbonate (PC), valued for its impact resistance and stability. Together, these materials ensure that the module can endure demanding industrial environments while maintaining long service life and consistent performance.

Connectivity is provided through screw terminals, a proven method for industrial wiring. Screw terminals ensure secure, vibration-resistant electrical connections that remain stable over time, even in environments subject to continuous operation or mechanical stress. This enhances the reliability of signal and power transmission, supporting uninterrupted system performance.

The PSSU BS 1/8 S is also designed with environmental resilience in mind. It operates reliably under conditions of up to 93% relative humidity at 40 °C, making it suitable for industries where moisture and variable conditions are common. With a height of 129 mm, the module maintains a compact form factor that fits efficiently into control cabinets while leaving sufficient space for routing and maintenance access.

Integration into the broader Pilz PSSu system ensures compatibility and simplifies engineering efforts. Users can easily combine this base module with analogue, digital, and communication modules to create tailored solutions for monitoring, control, and safety functions. The system’s modularity not only reduces installation effort but also protects investment by supporting straightforward expansion.

In practical terms, the PSSU BS 1/8 S is well suited for applications in machine building, packaging lines, process automation, and distributed control systems, where reliable modular I/O is essential. Its robust build, secure wiring, and environmental tolerance make it a trusted foundation for building modern, safe, and flexible automation systems.

In summary, the Pilz PSSU BS 1/8 S provides a dependable base for the PSSu I/O platform, offering scalable connectivity, durable housing, secure screw terminal wiring, and strong environmental performance. It enables engineers to design adaptable, long-lasting automation solutions that meet the demands of contemporary industrial environments.