The Pilz PNOZ 1 24VDC 3N/O 1N/C (Part No. 775695) is a dependable safety relay from the trusted PNOZ series, designed to monitor safety functions and reliably switch off hazardous machine operations. With its compact design, efficient power usage, and versatile contact arrangement, it is an ideal solution for small to medium-scale machinery where reliable operator protection is required.

Operating on a 24 V DC supply voltage, the PNOZ 1 consumes just 2.5 W, making it highly energy-efficient for continuous operation. This ensures stable performance while minimising power demand and heat build-up inside control panels, supporting long-term system efficiency.

The relay features two inputs, enabling dual-channel monitoring of safety devices. This redundancy is essential for detecting wiring faults, short circuits, or discrepancies between channels. By supervising safety devices such as emergency stop buttons, guard door interlocks, two-hand controls, or safety mats, the PNOZ 1 ensures that hazardous energy sources are immediately disconnected when a risk is detected.

On the output side, the PNOZ 1 is equipped with a practical contact configuration: 3 normally open (N/O) safety contacts that directly disconnect actuators or drives, and 1 normally closed (N/C) auxiliary contact for signalling and diagnostics. The auxiliary contact allows integration with higher-level control systems, providing valuable status information for maintenance and troubleshooting.

The relay is compliant with EN 60947-4-1 utilisation categories (AC/DC1), supporting switching of loads up to 240 V AC. This makes it suitable for a wide variety of applications, from machinery with moderate load requirements to environments where frequent switching cycles are expected. The robust design ensures long service life even in demanding operating conditions.

Installation and integration are straightforward thanks to the relay’s compact design and clearly marked terminals. This reduces wiring complexity and commissioning time, helping machine builders and operators save valuable setup effort. Maintenance is equally efficient, with diagnostic transparency provided through the auxiliary contact and the reliable design typical of Pilz components.

The PNOZ 1 24VDC is widely used in industries such as automotive, packaging, material handling, robotics, and general automation, where safety compliance and productivity must go hand in hand. Its simplicity, combined with robust output switching capacity, makes it particularly useful in smaller safety systems that require reliable E-STOP or guard monitoring without unnecessary complexity.

In summary, the Pilz PNOZ 1 24VDC 3N/O 1N/C (775695) offers energy-efficient operation, dual-channel input monitoring, versatile contact configuration, and robust compliance with international safety standards. It is a compact, efficient, and highly reliable safety relay that enhances both operator protection and machine performance in industrial automation.