The Pilz PSSU E S 2DOR 2 (312511) is a robust relay output module within the Pilz PSSu I/O system, designed to provide secure and efficient control of external devices in both automation and safety-related applications. Featuring two relay outputs, durable contact materials, and compliance with international standards, it delivers dependable performance in industrial environments.

At the heart of the module are two independent relay outputs, enabling flexible control of actuators, switching devices, or safety-related equipment. This makes it suitable for applications where reliable disconnection of loads is critical, such as motor contactors, solenoids, or indicator lamps. The relay outputs provide galvanic isolation from the control system, improving safety and protecting sensitive electronics from load-side disturbances.

The relay contacts are manufactured from AgSnO₂ (silver–tin oxide), a material known for its high conductivity, durability, and excellent resistance to electrical arcing. This ensures long service life even under frequent switching conditions and helps maintain stable performance when controlling inductive or resistive loads. For users, this translates into reduced maintenance needs and lower lifecycle costs.

The PSSU E S 2DOR 2 complies with relevant international standards, including EN 60947-4-1, which defines utilisation categories for contactors and motor starters, and EN 60947-5-1, covering contact relay fuse protection. These certifications provide assurance that the module meets stringent safety and reliability requirements, making it suitable for use in critical industrial automation systems where compliance is non-negotiable.

Engineered for demanding environments, the module is tested according to EN 60068-2-14, ensuring resilience against temperature fluctuations and other mechanical stresses typically encountered in industrial applications. This guarantees reliable operation across a range of conditions, maintaining uptime and safety even in challenging environments.

As part of the modular PSSu I/O system, the PSSU E S 2DOR 2 integrates seamlessly with digital and analogue input/output modules, communication interfaces, and safety controllers. This modularity enables system designers to create tailored automation and safety solutions that can expand or adapt to evolving requirements. The straightforward integration also reduces commissioning time and simplifies maintenance.

Applications for the PSSU E S 2DOR 2 are broad, including machine building, packaging lines, robotics, and process automation, where reliable relay switching is required. Its durability and standards compliance make it particularly well-suited for safety-critical tasks such as emergency stop actuation or protective device control.

In summary, the Pilz PSSU E S 2DOR 2 (312511) is a versatile and standards-compliant relay output module. With its dual relay outputs, AgSnO₂ contact design, compliance with EN 60947 standards, and proven industrial resilience, it provides engineers with a dependable solution for building modular, safe, and efficient automation systems.