The Pilz PNOZ E8.1P 24VDC 2SO, part number 774198, is a robust safety relay from the well-established PNOZ E series, engineered to deliver reliable monitoring and safe control of industrial machinery. Designed with advanced safety and efficiency in mind, this device ensures personnel protection while optimising machine uptime, making it a valuable component in modern safety architectures.

Operating on a 24 V DC supply, the PNOZ E8.1P is fully compatible with the standard voltage levels commonly used in today’s industrial automation systems. Its low-voltage operation not only improves energy efficiency but also simplifies integration into new and existing safety systems. This makes it an ideal choice for machine builders and system integrators who prioritise streamlined, reliable, and future-proof solutions.

The relay is equipped with 2 signalling outputs (SO), a feature that enhances system transparency and diagnostics. These outputs provide real-time feedback to higher-level controllers such as PLCs or HMIs, enabling operators to monitor the status of the safety relay and identify faults or activation events quickly. This improved visibility reduces downtime, supports predictive maintenance, and enhances overall productivity in safety-critical applications.

One of the key strengths of the PNOZ E8.1P is its compliance with EN 60947-1 (utilisation category DC-12). This classification ensures reliable switching performance when handling resistive loads in DC circuits, a requirement in many modern safety and control applications. Combined with its robust electromechanical design, the relay guarantees dependable performance across varied load conditions and switching frequencies.

The device is also built with environmental resilience in mind. Certified for climatic suitability to EN 60068-2-78, it performs consistently even under challenging ambient conditions. With an operating temperature range of -10 °C to +55 °C, it is suitable for a wide range of industrial environments, from standard manufacturing floors to more demanding applications such as robotics, material handling, and packaging systems.

Compact and easy to install, the relay’s design reduces space requirements in control cabinets while offering durable, long-lasting operation. Its lightweight yet robust construction ensures it can withstand the mechanical stresses and frequent actuation cycles of industrial use without compromising safety integrity.

Applications for the PNOZ E8.1P include monitoring devices such as emergency stop buttons, guard doors, light curtains, and two-hand control systems. When triggered, the relay immediately disconnects hazardous machine functions, ensuring that operators remain protected while machinery is brought to a safe condition.

In summary, the Pilz PNOZ E8.1P 24VDC 2SO (774198) is a reliable, efficient, and standards-compliant safety relay built to deliver continuous protection in demanding industrial settings. With its 24 V DC supply, dual signalling outputs, environmental resilience, and compliance with international standards, it offers an ideal solution for safeguarding both personnel and machinery across a wide variety of industries.