The Pilz PNOZ S1 24VDC 2 N/O (Part No. 750101) is a compact and efficient safety relay from the Pilz PNOZsigma series, designed to monitor fundamental safety functions such as emergency stop devices and protective guards. Built with Pilz’s reputation for safety and reliability, this relay provides essential protection for machines and operators in industrial environments while maintaining energy efficiency and ease of integration.

Operating on a 24 V DC supply, the PNOZ S1 consumes just 2 W of power, making it highly efficient for continuous operation. This low energy requirement reduces heat within control panels and minimises the strain on power supplies, making it particularly valuable in systems with multiple relays or where energy conservation is a priority.

The relay features 1 safety input channel, providing straightforward monitoring of single safety devices. This makes it well-suited for smaller or less complex systems where only one emergency stop button, protective gate, or enabling switch needs to be monitored. Despite its simplicity, the PNOZ S1 ensures reliable and immediate shutdown of hazardous machine functions when unsafe conditions are detected.

On the output side, the PNOZ S1 offers a versatile configuration. It includes 2 normally open (N/O) safety contacts, capable of disconnecting actuators, motors, or contactors to ensure safe machine stoppage. Additionally, it features 1 semiconductor output, which can be used for signalling or feedback purposes, such as providing status indication to a PLC or higher-level control system. This combination allows both direct safety switching and system-level communication, increasing flexibility in system design.

As part of the PNOZsigma series, the PNOZ S1 is engineered for compactness and ease of use. Its slimline design saves valuable space in control cabinets, while its clearly marked terminals simplify wiring and reduce installation time. This practicality makes it a cost-effective option for machine builders and plant operators alike.

The rugged design and high build quality ensure long service life and reliability, even in demanding industrial conditions. Once installed, the relay requires minimal maintenance, supporting high machine availability and reducing downtime.

Applications for the PNOZ S1 are wide-ranging and include manufacturing, packaging, robotics, logistics, and process automation, where safety devices must be monitored to comply with international standards and ensure operator protection. Its compact design makes it particularly well-suited for standalone machines, small production lines, and retrofitted safety upgrades.

In summary, the Pilz PNOZ S1 24VDC 2 N/O offers low-power DC operation, simple single-input monitoring, reliable output flexibility, and compact, standards-compliant design. It is a dependable safety relay that provides essential protection for operators and equipment, making it an ideal choice for straightforward yet effective safety applications in industrial automation.