The Pilz PNOZ S3 24VDC 2 N/O – 750103 is a highly reliable safety relay developed for universal use in machine and plant safety applications. Part of the proven PNOZsigma family, this relay is engineered to provide dependable monitoring of emergency stop buttons and safety gates, ensuring operators and machinery are fully protected in line with international safety standards.

Operating with a 24 V DC supply, the PNOZ S3 is both energy-efficient and stable, consuming only 2.5 W in typical operation. This low power demand reduces operating costs while maintaining consistent performance across a wide range of industrial applications. The compact design allows for straightforward installation in control cabinets where space is often limited, while maintaining the robust reliability for which Pilz is known.

The unit features two safety inputs, enabling redundant signal processing and fault detection. This dual-channel structure ensures that the relay can detect wiring errors or contact failures, a critical safeguard in safety-related control systems. By ensuring proper redundancy, the PNOZ S3 delivers higher reliability in detecting safety-related signals and enhances the overall safety integrity of machinery.

To control safety functions, the relay provides two normally open (N/O) safety contacts, designed to switch reliably in response to emergency stop or protective device activation. These contacts conform to the utilisation categories specified in EN 60947-4-1, ensuring the PNOZ S3 meets stringent safety and reliability requirements for industrial use. This makes the relay suitable for both AC and DC switching applications, including contactors, actuators, and signal devices.

Durability and compliance are core elements of the PNOZ S3 design. As part of the Pilz PNOZsigma series, this relay incorporates features that reduce installation time, simplify wiring, and extend service life. Its robust construction allows it to withstand demanding industrial environments, including continuous operation and frequent switching cycles.

Typical applications for the PNOZ S3 include emergency stop monitoring, safety gate control, and machinery interlocking across industries such as packaging, automotive, food processing, and general automation. With its dependable functionality and compact form factor, it is particularly well suited for safety-critical systems where reliability and space efficiency are key.

In summary, the Pilz PNOZ S3 24VDC 2 N/O – 750103 combines compact design, low power consumption, and robust dual-channel safety inputs to deliver a dependable and standards-compliant solution for machine safety. By ensuring reliable switching of safety functions and straightforward integration, it supports both operator protection and maximum system uptime.