The Pilz PNOZ S7 24VDC 4 N/O 1 N/C (part no. 750107) is a high-performance safety relay from the trusted Pilz PNOZsigma range, engineered to monitor essential safety functions such as emergency stops, guard doors, and light curtains. With its versatile contact configuration, low power consumption, and compliance with international standards, it is designed to safeguard both personnel and machinery in modern automation environments.

Operating at a 24 V DC supply voltage, the relay integrates seamlessly into standard low-voltage control architectures, making it highly compatible with a wide range of industrial applications. Its low energy requirement of just 2 W ensures efficiency, minimises thermal load within the control cabinet, and contributes to long-term cost savings while supporting environmentally conscious operations.

The PNOZ S7 is equipped with a comprehensive contact setup of 4 normally open (N/O) enabling contacts and 1 normally closed (N/C) monitoring contact. This arrangement provides engineers with flexibility to design redundant and fault-tolerant circuits. The enabling contacts allow safe activation of actuators or machinery only when all monitored safety conditions are satisfied, while the monitoring contact ensures reliable system feedback and fault diagnostics.

With just one input channel, the relay simplifies integration while maintaining effective monitoring. This makes it well-suited for applications where a single safety device—such as an emergency stop pushbutton or safety gate switch—needs to be monitored with high reliability.

Built to conform with the EN 60947-4-1 utilisation category, the relay supports both AC and DC load switching, ensuring predictable and safe performance across different operating conditions. Its robust design ensures long service life even under frequent actuation, making it suitable for continuous-duty environments.

As part of the Pilz PNOZsigma series, the S7 benefits from the compact, modular design philosophy of the range. This allows it to fit into space-efficient control panels while still delivering maximum performance. Its design also supports straightforward wiring and commissioning, reducing engineering effort and downtime during installation.

Applications of the PNOZ S7 24VDC extend across industries such as automotive manufacturing, packaging, material handling, robotics, and general industrial machinery. It is widely used to monitor emergency stop buttons, guard doors, and other safety devices, ensuring hazardous machine functions are stopped immediately when unsafe conditions are detected.

In summary, the Pilz PNOZ S7 24VDC 4 N/O 1 N/C is a compact, efficient, and reliable safety relay that provides robust protection for industrial automation. With its 24 V DC operation, versatile contact arrangement, energy-efficient performance, and international standards compliance, it represents a dependable solution for safeguarding people and equipment in demanding environments.