The Pilz PNOZ 16S 230VAC 24VDC 2N/O 2SO, part number 774076, is a robust and efficient safety relay designed to safeguard machinery and operators by reliably monitoring safety functions. As part of the trusted PNOZ family, this relay integrates seamlessly into industrial safety architectures, providing both dependable protection and system transparency.

The PNOZ 16S features a dual supply design, operating with a 230 V AC primary supply (U1) for main functionality, supported by a 24 V DC auxiliary supply (U2) for signalling and control. This dual-voltage configuration ensures stable operation and compatibility with both high-voltage and low-voltage components within safety systems. It makes the relay particularly versatile for integration into complex machine environments that use multiple supply types.

The relay is equipped with 2 normally open (N/O) safety contacts, which form the core of its protective function. These contacts provide reliable isolation of hazardous energy sources, ensuring that machinery is brought to a safe state when safety devices are triggered. Whether stopping motors, cutting power to actuators, or disabling control signals, the contacts are designed for consistent and robust operation under demanding conditions.

In addition to its safety contacts, the PNOZ 16S offers 2 signalling outputs (SO). These outputs provide real-time feedback to higher-level systems, such as PLCs, HMIs, or other monitoring equipment. By delivering accurate diagnostic information, the relay improves system transparency, helping operators and maintenance teams quickly identify status changes or faults, which in turn reduces downtime and enhances productivity.

The device is engineered for energy efficiency, with a power consumption of just 3.5 VA AC. This efficiency ensures cost-effective operation in continuous-use applications, while its compact design allows for easy installation in control cabinets, even where space is limited.

Built to comply with international safety standards, the PNOZ 16S reflects Pilz’s long-standing commitment to quality and reliability in industrial safety solutions. Its robust electromechanical construction ensures a long service life and dependable performance, even under frequent actuation and continuous operating cycles.

Typical applications include monitoring emergency stop buttons, safety gates, light curtains, and two-hand control systems. Its ability to disconnect hazardous energy sources quickly and provide clear status feedback makes it suitable for industries such as manufacturing, robotics, packaging, and process automation.

In summary, the Pilz PNOZ 16S 230VAC 24VDC 2N/O 2SO (774076) is a versatile and dependable safety relay that combines dual-voltage operation, efficient power usage, robust safety contacts, and diagnostic signalling. Designed to integrate seamlessly into industrial environments, it provides a reliable and cost-effective solution for safeguarding operators and machinery while ensuring compliance with international safety standards.