The Pilz PNOZ X2 24VAC/DC 2N/O (Part No. 774303) is a compact and dependable safety relay designed to monitor safety functions and ensure that hazardous machine movements are reliably stopped when unsafe conditions arise. Belonging to the widely trusted PNOZ X series, this relay is a cost-effective and practical solution for machine builders and operators who require robust safety control without unnecessary complexity.

One of the defining strengths of the PNOZ X2 is its flexible supply voltage compatibility. Operating on both 24 V AC and 24 V DC, the unit adapts easily to a variety of industrial control systems, reducing the need for multiple product variants and streamlining inventory management. Its low power consumption—4.5 VA in AC supply or 2 W in DC supply—further enhances its efficiency, making it suitable for applications with multiple relays operating continuously.

The device incorporates dual-channel input monitoring, with 2 inputs providing redundancy and fault detection. This ensures that critical safety devices such as emergency stop buttons, enabling switches, or guard door sensors are monitored with the highest reliability. By supporting dual-channel operation, the relay can detect cross faults, short circuits, or discrepancies between inputs, ensuring machines cannot be restarted unless all safety conditions are fulfilled.

The output side of the relay features 2 normally open (N/O) safety contacts. These provide safe and reliable disconnection of actuators, contactors, or motors, ensuring dangerous machine movements are immediately stopped when required. The N/O contacts can be used to directly interrupt hazardous energy circuits or to control larger contactor-based disconnection systems, depending on the application’s requirements.

The PNOZ X2 24VAC/DC 2N/O is engineered to Pilz’s high standards of quality and durability, ensuring long service life even in demanding industrial conditions. Its compact design saves space in control cabinets, while clearly labelled terminals simplify installation and wiring, reducing commissioning times and minimising the chance of wiring errors.

Compliant with international safety standards, including EN 60947-4-1 (utilisation categories AC/DC1), the PNOZ X2 offers globally recognised reliability and performance. This makes it suitable for use across a wide range of industries, from manufacturing and packaging to robotics, automotive, and process automation.

In practical applications, the PNOZ X2 is typically used for monitoring emergency stop circuits, guard doors, and other safety functions where dual-channel redundancy is required but where a compact, cost-effective relay is sufficient. Its simplicity and robustness make it particularly well-suited for small and medium-sized machines that require straightforward safety integration.

In summary, the Pilz PNOZ X2 24VAC/DC 2N/O (774303) combines dual supply compatibility, energy-efficient operation, dual-channel input monitoring, and reliable output switching. It is a compact and efficient safety relay that ensures safe machine operation while meeting international safety compliance standards.